diff --git a/Lib/lib-tk/Dialog.py b/Lib/lib-tk/Dialog.py
new file mode 100644
index 0000000..75e7fed
--- /dev/null
+++ b/Lib/lib-tk/Dialog.py
@@ -0,0 +1,49 @@
+# dialog.py -- Tkinter interface to the tk_dialog script.
+
+from tkinter import *
+from tkinter import _cnfmerge
+
+if TkVersion <= 3.6:
+    DIALOG_ICON = 'warning'
+else:
+    DIALOG_ICON = 'questhead'
+
+
+class Dialog(Widget):
+    def __init__(self, master=None, cnf={}, **kw):
+        cnf = _cnfmerge((cnf, kw))
+        self.widgetName = '__dialog__'
+        Widget._setup(self, master, cnf)
+        self.num = self.tk.getint(
+                self.tk.call(
+                      'tk_dialog', self._w,
+                      cnf['title'], cnf['text'],
+                      cnf['bitmap'], cnf['default'],
+                      *cnf['strings']))
+        try: Widget.destroy(self)
+        except TclError: pass
+    def destroy(self): pass
+
+def _test():
+    d = Dialog(None, {'title': 'File Modified',
+                      'text':
+                      'File "Python.h" has been modified'
+                      ' since the last time it was saved.'
+                      ' Do you want to save it before'
+                      ' exiting the application.',
+                      'bitmap': DIALOG_ICON,
+                      'default': 0,
+                      'strings': ('Save File',
+                                  'Discard Changes',
+                                  'Return to Editor')})
+    print d.num
+
+
+if __name__ == '__main__':
+    t = Button(None, {'text': 'Test',
+                      'command': _test,
+                      Pack: {}})
+    q = Button(None, {'text': 'Quit',
+                      'command': t.quit,
+                      Pack: {}})
+    t.mainloop()
diff --git a/Lib/lib-tk/FileDialog.py b/Lib/lib-tk/FileDialog.py
new file mode 100644
index 0000000..b08d3a8
--- /dev/null
+++ b/Lib/lib-tk/FileDialog.py
@@ -0,0 +1,274 @@
+"""File selection dialog classes.
+
+Classes:
+
+- FileDialog
+- LoadFileDialog
+- SaveFileDialog
+
+"""
+
+from Tkinter import *
+from Dialog import Dialog
+
+import os
+import fnmatch
+
+
+dialogstates = {}
+
+
+class FileDialog:
+
+    """Standard file selection dialog -- no checks on selected file.
+
+    Usage:
+
+        d = FileDialog(master)
+        fname = d.go(dir_or_file, pattern, default, key)
+        if fname is None: ...canceled...
+        else: ...open file...
+
+    All arguments to go() are optional.
+
+    The 'key' argument specifies a key in the global dictionary
+    'dialogstates', which keeps track of the values for the directory
+    and pattern arguments, overriding the values passed in (it does
+    not keep track of the default argument!).  If no key is specified,
+    the dialog keeps no memory of previous state.  Note that memory is
+    kept even when the dialog is canceled.  (All this emulates the
+    behavior of the Macintosh file selection dialogs.)
+
+    """
+
+    title = "File Selection Dialog"
+
+    def __init__(self, master, title=None):
+        if title is None: title = self.title
+        self.master = master
+        self.directory = None
+
+        self.top = Toplevel(master)
+        self.top.title(title)
+        self.top.iconname(title)
+
+        self.botframe = Frame(self.top)
+        self.botframe.pack(side=BOTTOM, fill=X)
+
+        self.selection = Entry(self.top)
+        self.selection.pack(side=BOTTOM, fill=X)
+        self.selection.bind('<Return>', self.ok_event)
+
+        self.filter = Entry(self.top)
+        self.filter.pack(side=TOP, fill=X)
+        self.filter.bind('<Return>', self.filter_command)
+
+        self.midframe = Frame(self.top)
+        self.midframe.pack(expand=YES, fill=BOTH)
+
+        self.filesbar = Scrollbar(self.midframe)
+        self.filesbar.pack(side=RIGHT, fill=Y)
+        self.files = Listbox(self.midframe, exportselection=0,
+                             yscrollcommand=(self.filesbar, 'set'))
+        self.files.pack(side=RIGHT, expand=YES, fill=BOTH)
+        btags = self.files.bindtags()
+        self.files.bindtags(btags[1:] + btags[:1])
+        self.files.bind('<ButtonRelease-1>', self.files_select_event)
+        self.files.bind('<Double-ButtonRelease-1>', self.files_double_event)
+        self.filesbar.config(command=(self.files, 'yview'))
+
+        self.dirsbar = Scrollbar(self.midframe)
+        self.dirsbar.pack(side=LEFT, fill=Y)
+        self.dirs = Listbox(self.midframe, exportselection=0,
+                            yscrollcommand=(self.dirsbar, 'set'))
+        self.dirs.pack(side=LEFT, expand=YES, fill=BOTH)
+        self.dirsbar.config(command=(self.dirs, 'yview'))
+        btags = self.dirs.bindtags()
+        self.dirs.bindtags(btags[1:] + btags[:1])
+        self.dirs.bind('<ButtonRelease-1>', self.dirs_select_event)
+        self.dirs.bind('<Double-ButtonRelease-1>', self.dirs_double_event)
+
+        self.ok_button = Button(self.botframe,
+                                 text="OK",
+                                 command=self.ok_command)
+        self.ok_button.pack(side=LEFT)
+        self.filter_button = Button(self.botframe,
+                                    text="Filter",
+                                    command=self.filter_command)
+        self.filter_button.pack(side=LEFT, expand=YES)
+        self.cancel_button = Button(self.botframe,
+                                    text="Cancel",
+                                    command=self.cancel_command)
+        self.cancel_button.pack(side=RIGHT)
+
+        self.top.protocol('WM_DELETE_WINDOW', self.cancel_command)
+        # XXX Are the following okay for a general audience?
+        self.top.bind('<Alt-w>', self.cancel_command)
+        self.top.bind('<Alt-W>', self.cancel_command)
+
+    def go(self, dir_or_file=os.curdir, pattern="*", default="", key=None):
+        if key and dialogstates.has_key(key):
+            self.directory, pattern = dialogstates[key]
+        else:
+            dir_or_file = os.path.expanduser(dir_or_file)
+            if os.path.isdir(dir_or_file):
+                self.directory = dir_or_file
+            else:
+                self.directory, default = os.path.split(dir_or_file)
+        self.set_filter(self.directory, pattern)
+        self.set_selection(default)
+        self.filter_command()
+        self.selection.focus_set()
+        self.top.wait_visibility() # window needs to be visible for the grab
+        self.top.grab_set()
+        self.how = None
+        self.master.mainloop()          # Exited by self.quit(how)
+        if key:
+            directory, pattern = self.get_filter()
+            if self.how:
+                directory = os.path.dirname(self.how)
+            dialogstates[key] = directory, pattern
+        self.top.destroy()
+        return self.how
+
+    def quit(self, how=None):
+        self.how = how
+        self.master.quit()              # Exit mainloop()
+
+    def dirs_double_event(self, event):
+        self.filter_command()
+
+    def dirs_select_event(self, event):
+        dir, pat = self.get_filter()
+        subdir = self.dirs.get('active')
+        dir = os.path.normpath(os.path.join(self.directory, subdir))
+        self.set_filter(dir, pat)
+
+    def files_double_event(self, event):
+        self.ok_command()
+
+    def files_select_event(self, event):
+        file = self.files.get('active')
+        self.set_selection(file)
+
+    def ok_event(self, event):
+        self.ok_command()
+
+    def ok_command(self):
+        self.quit(self.get_selection())
+
+    def filter_command(self, event=None):
+        dir, pat = self.get_filter()
+        try:
+            names = os.listdir(dir)
+        except os.error:
+            self.master.bell()
+            return
+        self.directory = dir
+        self.set_filter(dir, pat)
+        names.sort()
+        subdirs = [os.pardir]
+        matchingfiles = []
+        for name in names:
+            fullname = os.path.join(dir, name)
+            if os.path.isdir(fullname):
+                subdirs.append(name)
+            elif fnmatch.fnmatch(name, pat):
+                matchingfiles.append(name)
+        self.dirs.delete(0, END)
+        for name in subdirs:
+            self.dirs.insert(END, name)
+        self.files.delete(0, END)
+        for name in matchingfiles:
+            self.files.insert(END, name)
+        head, tail = os.path.split(self.get_selection())
+        if tail == os.curdir: tail = ''
+        self.set_selection(tail)
+
+    def get_filter(self):
+        filter = self.filter.get()
+        filter = os.path.expanduser(filter)
+        if filter[-1:] == os.sep or os.path.isdir(filter):
+            filter = os.path.join(filter, "*")
+        return os.path.split(filter)
+
+    def get_selection(self):
+        file = self.selection.get()
+        file = os.path.expanduser(file)
+        return file
+
+    def cancel_command(self, event=None):
+        self.quit()
+
+    def set_filter(self, dir, pat):
+        if not os.path.isabs(dir):
+            try:
+                pwd = os.getcwd()
+            except os.error:
+                pwd = None
+            if pwd:
+                dir = os.path.join(pwd, dir)
+                dir = os.path.normpath(dir)
+        self.filter.delete(0, END)
+        self.filter.insert(END, os.path.join(dir or os.curdir, pat or "*"))
+
+    def set_selection(self, file):
+        self.selection.delete(0, END)
+        self.selection.insert(END, os.path.join(self.directory, file))
+
+
+class LoadFileDialog(FileDialog):
+
+    """File selection dialog which checks that the file exists."""
+
+    title = "Load File Selection Dialog"
+
+    def ok_command(self):
+        file = self.get_selection()
+        if not os.path.isfile(file):
+            self.master.bell()
+        else:
+            self.quit(file)
+
+
+class SaveFileDialog(FileDialog):
+
+    """File selection dialog which checks that the file may be created."""
+
+    title = "Save File Selection Dialog"
+
+    def ok_command(self):
+        file = self.get_selection()
+        if os.path.exists(file):
+            if os.path.isdir(file):
+                self.master.bell()
+                return
+            d = Dialog(self.top,
+                       title="Overwrite Existing File Question",
+                       text="Overwrite existing file %r?" % (file,),
+                       bitmap='questhead',
+                       default=1,
+                       strings=("Yes", "Cancel"))
+            if d.num != 0:
+                return
+        else:
+            head, tail = os.path.split(file)
+            if not os.path.isdir(head):
+                self.master.bell()
+                return
+        self.quit(file)
+
+
+def test():
+    """Simple test program."""
+    root = Tk()
+    root.withdraw()
+    fd = LoadFileDialog(root)
+    loadfile = fd.go(key="test")
+    fd = SaveFileDialog(root)
+    savefile = fd.go(key="test")
+    print loadfile, savefile
+
+
+if __name__ == '__main__':
+    test()
diff --git a/Lib/lib-tk/FixTk.py b/Lib/lib-tk/FixTk.py
new file mode 100644
index 0000000..346d3c3
--- /dev/null
+++ b/Lib/lib-tk/FixTk.py
@@ -0,0 +1,41 @@
+import sys, os
+
+# Delay import _tkinter until we have set TCL_LIBRARY,
+# so that Tcl_FindExecutable has a chance to locate its
+# encoding directory.
+
+# Unfortunately, we cannot know the TCL_LIBRARY directory
+# if we don't know the tcl version, which we cannot find out
+# without import Tcl. Fortunately, Tcl will itself look in
+# <TCL_LIBRARY>\..\tcl<TCL_VERSION>, so anything close to
+# the real Tcl library will do.
+
+prefix = os.path.join(sys.prefix,"tcl")
+if not os.path.exists(prefix):
+    # devdir/../tcltk/lib
+    prefix = os.path.join(sys.prefix, os.path.pardir, "tcltk", "lib")
+    prefix = os.path.abspath(prefix)
+# if this does not exist, no further search is needed
+if os.path.exists(prefix):
+    if not os.environ.has_key("TCL_LIBRARY"):
+        for name in os.listdir(prefix):
+            if name.startswith("tcl"):
+                tcldir = os.path.join(prefix,name)
+                if os.path.isdir(tcldir):
+                    os.environ["TCL_LIBRARY"] = tcldir
+    # Compute TK_LIBRARY, knowing that it has the same version
+    # as Tcl
+    import _tkinter
+    ver = str(_tkinter.TCL_VERSION)
+    if not os.environ.has_key("TK_LIBRARY"):
+        v = os.path.join(prefix, 'tk'+ver)
+        if os.path.exists(os.path.join(v, "tclIndex")):
+            os.environ['TK_LIBRARY'] = v
+    # We don't know the Tix version, so we must search the entire
+    # directory
+    if not os.environ.has_key("TIX_LIBRARY"):
+        for name in os.listdir(prefix):
+            if name.startswith("tix"):
+                tixdir = os.path.join(prefix,name)
+                if os.path.isdir(tixdir):
+                    os.environ["TIX_LIBRARY"] = tixdir
diff --git a/Lib/lib-tk/ScrolledText.py b/Lib/lib-tk/ScrolledText.py
new file mode 100644
index 0000000..c96bc3b
--- /dev/null
+++ b/Lib/lib-tk/ScrolledText.py
@@ -0,0 +1,43 @@
+# A ScrolledText widget feels like a text widget but also has a
+# vertical scroll bar on its right.  (Later, options may be added to
+# add a horizontal bar as well, to make the bars disappear
+# automatically when not needed, to move them to the other side of the
+# window, etc.)
+#
+# Configuration options are passed to the Text widget.
+# A Frame widget is inserted between the master and the text, to hold
+# the Scrollbar widget.
+# Most methods calls are inherited from the Text widget; Pack methods
+# are redirected to the Frame widget however.
+
+from tkinter import *
+from tkinter import _cnfmerge
+
+class ScrolledText(Text):
+    def __init__(self, master=None, cnf=None, **kw):
+        if cnf is None:
+            cnf = {}
+        if kw:
+            cnf = _cnfmerge((cnf, kw))
+        fcnf = {}
+        for k in cnf.keys():
+            if type(k) == ClassType or k == 'name':
+                fcnf[k] = cnf[k]
+                del cnf[k]
+        self.frame = Frame(master, **fcnf)
+        self.vbar = Scrollbar(self.frame, name='vbar')
+        self.vbar.pack(side=RIGHT, fill=Y)
+        cnf['name'] = 'text'
+        Text.__init__(self, self.frame, **cnf)
+        self.pack(side=LEFT, fill=BOTH, expand=1)
+        self['yscrollcommand'] = self.vbar.set
+        self.vbar['command'] = self.yview
+
+        # Copy geometry methods of self.frame -- hack!
+        methods = Pack.__dict__.keys()
+        methods = methods + Grid.__dict__.keys()
+        methods = methods + Place.__dict__.keys()
+
+        for m in methods:
+            if m[0] != '_' and m != 'config' and m != 'configure':
+                setattr(self, m, getattr(self.frame, m))
diff --git a/Lib/lib-tk/SimpleDialog.py b/Lib/lib-tk/SimpleDialog.py
new file mode 100644
index 0000000..cb08318
--- /dev/null
+++ b/Lib/lib-tk/SimpleDialog.py
@@ -0,0 +1,112 @@
+"""A simple but flexible modal dialog box."""
+
+
+from Tkinter import *
+
+
+class SimpleDialog:
+
+    def __init__(self, master,
+                 text='', buttons=[], default=None, cancel=None,
+                 title=None, class_=None):
+        if class_:
+            self.root = Toplevel(master, class_=class_)
+        else:
+            self.root = Toplevel(master)
+        if title:
+            self.root.title(title)
+            self.root.iconname(title)
+        self.message = Message(self.root, text=text, aspect=400)
+        self.message.pack(expand=1, fill=BOTH)
+        self.frame = Frame(self.root)
+        self.frame.pack()
+        self.num = default
+        self.cancel = cancel
+        self.default = default
+        self.root.bind('<Return>', self.return_event)
+        for num in range(len(buttons)):
+            s = buttons[num]
+            b = Button(self.frame, text=s,
+                       command=(lambda self=self, num=num: self.done(num)))
+            if num == default:
+                b.config(relief=RIDGE, borderwidth=8)
+            b.pack(side=LEFT, fill=BOTH, expand=1)
+        self.root.protocol('WM_DELETE_WINDOW', self.wm_delete_window)
+        self._set_transient(master)
+
+    def _set_transient(self, master, relx=0.5, rely=0.3):
+        widget = self.root
+        widget.withdraw() # Remain invisible while we figure out the geometry
+        widget.transient(master)
+        widget.update_idletasks() # Actualize geometry information
+        if master.winfo_ismapped():
+            m_width = master.winfo_width()
+            m_height = master.winfo_height()
+            m_x = master.winfo_rootx()
+            m_y = master.winfo_rooty()
+        else:
+            m_width = master.winfo_screenwidth()
+            m_height = master.winfo_screenheight()
+            m_x = m_y = 0
+        w_width = widget.winfo_reqwidth()
+        w_height = widget.winfo_reqheight()
+        x = m_x + (m_width - w_width) * relx
+        y = m_y + (m_height - w_height) * rely
+        if x+w_width > master.winfo_screenwidth():
+            x = master.winfo_screenwidth() - w_width
+        elif x < 0:
+            x = 0
+        if y+w_height > master.winfo_screenheight():
+            y = master.winfo_screenheight() - w_height
+        elif y < 0:
+            y = 0
+        widget.geometry("+%d+%d" % (x, y))
+        widget.deiconify() # Become visible at the desired location
+
+    def go(self):
+        self.root.wait_visibility()
+        self.root.grab_set()
+        self.root.mainloop()
+        self.root.destroy()
+        return self.num
+
+    def return_event(self, event):
+        if self.default is None:
+            self.root.bell()
+        else:
+            self.done(self.default)
+
+    def wm_delete_window(self):
+        if self.cancel is None:
+            self.root.bell()
+        else:
+            self.done(self.cancel)
+
+    def done(self, num):
+        self.num = num
+        self.root.quit()
+
+
+if __name__ == '__main__':
+
+    def test():
+        root = Tk()
+        def doit(root=root):
+            d = SimpleDialog(root,
+                         text="This is a test dialog.  "
+                              "Would this have been an actual dialog, "
+                              "the buttons below would have been glowing "
+                              "in soft pink light.\n"
+                              "Do you believe this?",
+                         buttons=["Yes", "No", "Cancel"],
+                         default=0,
+                         cancel=2,
+                         title="Test Dialog")
+            print d.go()
+        t = Button(root, text='Test', command=doit)
+        t.pack()
+        q = Button(root, text='Quit', command=t.quit)
+        q.pack()
+        t.mainloop()
+
+    test()
diff --git a/Lib/lib-tk/Tix.py b/Lib/lib-tk/Tix.py
new file mode 100755
index 0000000..22a9000
--- /dev/null
+++ b/Lib/lib-tk/Tix.py
@@ -0,0 +1,1891 @@
+# -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
+#
+# $Id$
+#
+# Tix.py -- Tix widget wrappers.
+#
+#       For Tix, see http://tix.sourceforge.net
+#
+#       - Sudhir Shenoy (sshenoy@gol.com), Dec. 1995.
+#         based on an idea of Jean-Marc Lugrin (lugrin@ms.com)
+#
+# NOTE: In order to minimize changes to Tkinter.py, some of the code here
+#       (TixWidget.__init__) has been taken from Tkinter (Widget.__init__)
+#       and will break if there are major changes in Tkinter.
+#
+# The Tix widgets are represented by a class hierarchy in python with proper
+# inheritance of base classes.
+#
+# As a result after creating a 'w = StdButtonBox', I can write
+#              w.ok['text'] = 'Who Cares'
+#    or              w.ok['bg'] = w['bg']
+# or even       w.ok.invoke()
+# etc.
+#
+# Compare the demo tixwidgets.py to the original Tcl program and you will
+# appreciate the advantages.
+#
+
+from tkinter import *
+from tkinter import _flatten, _cnfmerge, _default_root
+
+# WARNING - TkVersion is a limited precision floating point number
+if TkVersion < 3.999:
+    raise ImportError, "This version of Tix.py requires Tk 4.0 or higher"
+
+import _tkinter # If this fails your Python may not be configured for Tk
+
+# Some more constants (for consistency with Tkinter)
+WINDOW = 'window'
+TEXT = 'text'
+STATUS = 'status'
+IMMEDIATE = 'immediate'
+IMAGE = 'image'
+IMAGETEXT = 'imagetext'
+BALLOON = 'balloon'
+AUTO = 'auto'
+ACROSSTOP = 'acrosstop'
+
+# Some constants used by Tkinter dooneevent()
+TCL_DONT_WAIT     = 1 << 1
+TCL_WINDOW_EVENTS = 1 << 2
+TCL_FILE_EVENTS   = 1 << 3
+TCL_TIMER_EVENTS  = 1 << 4
+TCL_IDLE_EVENTS   = 1 << 5
+TCL_ALL_EVENTS    = 0
+
+# BEWARE - this is implemented by copying some code from the Widget class
+#          in Tkinter (to override Widget initialization) and is therefore
+#          liable to break.
+import tkinter, os
+
+# Could probably add this to Tkinter.Misc
+class tixCommand:
+    """The tix commands provide access to miscellaneous  elements
+    of  Tix's  internal state and the Tix application context.
+    Most of the information manipulated by these  commands pertains
+    to  the  application  as a whole, or to a screen or
+    display, rather than to a particular window.
+
+    This is a mixin class, assumed to be mixed to Tkinter.Tk
+    that supports the self.tk.call method.
+    """
+
+    def tix_addbitmapdir(self, directory):
+        """Tix maintains a list of directories under which
+        the  tix_getimage  and tix_getbitmap commands will
+        search for image files. The standard bitmap  directory
+        is $TIX_LIBRARY/bitmaps. The addbitmapdir command
+        adds directory into this list. By  using  this
+        command, the  image  files  of an applications can
+        also be located using the tix_getimage or tix_getbitmap
+        command.
+        """
+        return self.tk.call('tix', 'addbitmapdir', directory)
+
+    def tix_cget(self, option):
+        """Returns  the  current  value  of the configuration
+        option given by option. Option may be  any  of  the
+        options described in the CONFIGURATION OPTIONS section.
+        """
+        return self.tk.call('tix', 'cget', option)
+
+    def tix_configure(self, cnf=None, **kw):
+        """Query or modify the configuration options of the Tix application
+        context. If no option is specified, returns a dictionary all of the
+        available options.  If option is specified with no value, then the
+        command returns a list describing the one named option (this list
+        will be identical to the corresponding sublist of the value
+        returned if no option is specified).  If one or more option-value
+        pairs are specified, then the command modifies the given option(s)
+        to have the given value(s); in this case the command returns an
+        empty string. Option may be any of the configuration options.
+        """
+        # Copied from Tkinter.py
+        if kw:
+            cnf = _cnfmerge((cnf, kw))
+        elif cnf:
+            cnf = _cnfmerge(cnf)
+        if cnf is None:
+            cnf = {}
+            for x in self.tk.split(self.tk.call('tix', 'configure')):
+                cnf[x[0][1:]] = (x[0][1:],) + x[1:]
+            return cnf
+        if isinstance(cnf, StringType):
+            x = self.tk.split(self.tk.call('tix', 'configure', '-'+cnf))
+            return (x[0][1:],) + x[1:]
+        return self.tk.call(('tix', 'configure') + self._options(cnf))
+
+    def tix_filedialog(self, dlgclass=None):
+        """Returns the file selection dialog that may be shared among
+        different calls from this application.  This command will create a
+        file selection dialog widget when it is called the first time. This
+        dialog will be returned by all subsequent calls to tix_filedialog.
+        An optional dlgclass parameter can be passed to specified what type
+        of file selection dialog widget is desired. Possible options are
+        tix FileSelectDialog or tixExFileSelectDialog.
+        """
+        if dlgclass is not None:
+            return self.tk.call('tix', 'filedialog', dlgclass)
+        else:
+            return self.tk.call('tix', 'filedialog')
+
+    def tix_getbitmap(self, name):
+        """Locates a bitmap file of the name name.xpm or name in one of the
+        bitmap directories (see the tix_addbitmapdir command above).  By
+        using tix_getbitmap, you can avoid hard coding the pathnames of the
+        bitmap files in your application. When successful, it returns the
+        complete pathname of the bitmap file, prefixed with the character
+        '@'.  The returned value can be used to configure the -bitmap
+        option of the TK and Tix widgets.
+        """
+        return self.tk.call('tix', 'getbitmap', name)
+
+    def tix_getimage(self, name):
+        """Locates an image file of the name name.xpm, name.xbm or name.ppm
+        in one of the bitmap directories (see the addbitmapdir command
+        above). If more than one file with the same name (but different
+        extensions) exist, then the image type is chosen according to the
+        depth of the X display: xbm images are chosen on monochrome
+        displays and color images are chosen on color displays. By using
+        tix_ getimage, you can advoid hard coding the pathnames of the
+        image files in your application. When successful, this command
+        returns the name of the newly created image, which can be used to
+        configure the -image option of the Tk and Tix widgets.
+        """
+        return self.tk.call('tix', 'getimage', name)
+
+    def tix_option_get(self, name):
+        """Gets  the options  manitained  by  the  Tix
+        scheme mechanism. Available options include:
+
+            active_bg       active_fg      bg
+            bold_font       dark1_bg       dark1_fg
+            dark2_bg        dark2_fg       disabled_fg
+            fg              fixed_font     font
+            inactive_bg     inactive_fg    input1_bg
+            input2_bg       italic_font    light1_bg
+            light1_fg       light2_bg      light2_fg
+            menu_font       output1_bg     output2_bg
+            select_bg       select_fg      selector
+            """
+        # could use self.tk.globalgetvar('tixOption', name)
+        return self.tk.call('tix', 'option', 'get', name)
+
+    def tix_resetoptions(self, newScheme, newFontSet, newScmPrio=None):
+        """Resets the scheme and fontset of the Tix application to
+        newScheme and newFontSet, respectively.  This affects only those
+        widgets created after this call. Therefore, it is best to call the
+        resetoptions command before the creation of any widgets in a Tix
+        application.
+
+        The optional parameter newScmPrio can be given to reset the
+        priority level of the Tk options set by the Tix schemes.
+
+        Because of the way Tk handles the X option database, after Tix has
+        been has imported and inited, it is not possible to reset the color
+        schemes and font sets using the tix config command.  Instead, the
+        tix_resetoptions command must be used.
+        """
+        if newScmPrio is not None:
+            return self.tk.call('tix', 'resetoptions', newScheme, newFontSet, newScmPrio)
+        else:
+            return self.tk.call('tix', 'resetoptions', newScheme, newFontSet)
+
+class Tk(tkinter.Tk, tixCommand):
+    """Toplevel widget of Tix which represents mostly the main window
+    of an application. It has an associated Tcl interpreter."""
+    def __init__(self, screenName=None, baseName=None, className='Tix'):
+        tkinter.Tk.__init__(self, screenName, baseName, className)
+        tixlib = os.environ.get('TIX_LIBRARY')
+        self.tk.eval('global auto_path; lappend auto_path [file dir [info nameof]]')
+        if tixlib is not None:
+            self.tk.eval('global auto_path; lappend auto_path {%s}' % tixlib)
+            self.tk.eval('global tcl_pkgPath; lappend tcl_pkgPath {%s}' % tixlib)
+        # Load Tix - this should work dynamically or statically
+        # If it's static, tcl/tix8.1/pkgIndex.tcl should have
+        #               'load {} Tix'
+        # If it's dynamic under Unix, tcl/tix8.1/pkgIndex.tcl should have
+        #               'load libtix8.1.8.3.so Tix'
+        self.tk.eval('package require Tix')
+
+    def destroy(self):
+        # For safety, remove an delete_window binding before destroy
+        self.protocol("WM_DELETE_WINDOW", "")
+        tkinter.Tk.destroy(self)
+
+# The Tix 'tixForm' geometry manager
+class Form:
+    """The Tix Form geometry manager
+
+    Widgets can be arranged by specifying attachments to other widgets.
+    See Tix documentation for complete details"""
+
+    def config(self, cnf={}, **kw):
+        self.tk.call('tixForm', self._w, *self._options(cnf, kw))
+
+    form = config
+
+    def __setitem__(self, key, value):
+        Form.form(self, {key: value})
+
+    def check(self):
+        return self.tk.call('tixForm', 'check', self._w)
+
+    def forget(self):
+        self.tk.call('tixForm', 'forget', self._w)
+
+    def grid(self, xsize=0, ysize=0):
+        if (not xsize) and (not ysize):
+            x = self.tk.call('tixForm', 'grid', self._w)
+            y = self.tk.splitlist(x)
+            z = ()
+            for x in y:
+                z = z + (self.tk.getint(x),)
+            return z
+        return self.tk.call('tixForm', 'grid', self._w, xsize, ysize)
+
+    def info(self, option=None):
+        if not option:
+            return self.tk.call('tixForm', 'info', self._w)
+        if option[0] != '-':
+            option = '-' + option
+        return self.tk.call('tixForm', 'info', self._w, option)
+
+    def slaves(self):
+        return map(self._nametowidget,
+                   self.tk.splitlist(
+                       self.tk.call(
+                       'tixForm', 'slaves', self._w)))
+
+
+
+tkinter.Widget.__bases__ = tkinter.Widget.__bases__ + (Form,)
+
+class TixWidget(tkinter.Widget):
+    """A TixWidget class is used to package all (or most) Tix widgets.
+
+    Widget initialization is extended in two ways:
+       1) It is possible to give a list of options which must be part of
+       the creation command (so called Tix 'static' options). These cannot be
+       given as a 'config' command later.
+       2) It is possible to give the name of an existing TK widget. These are
+       child widgets created automatically by a Tix mega-widget. The Tk call
+       to create these widgets is therefore bypassed in TixWidget.__init__
+
+    Both options are for use by subclasses only.
+    """
+    def __init__ (self, master=None, widgetName=None,
+                static_options=None, cnf={}, kw={}):
+        # Merge keywords and dictionary arguments
+        if kw:
+            cnf = _cnfmerge((cnf, kw))
+        else:
+            cnf = _cnfmerge(cnf)
+
+        # Move static options into extra. static_options must be
+        # a list of keywords (or None).
+        extra=()
+
+        # 'options' is always a static option
+        if static_options:
+            static_options.append('options')
+        else:
+            static_options = ['options']
+
+        for k,v in cnf.items()[:]:
+            if k in static_options:
+                extra = extra + ('-' + k, v)
+                del cnf[k]
+
+        self.widgetName = widgetName
+        Widget._setup(self, master, cnf)
+
+        # If widgetName is None, this is a dummy creation call where the
+        # corresponding Tk widget has already been created by Tix
+        if widgetName:
+            self.tk.call(widgetName, self._w, *extra)
+
+        # Non-static options - to be done via a 'config' command
+        if cnf:
+            Widget.config(self, cnf)
+
+        # Dictionary to hold subwidget names for easier access. We can't
+        # use the children list because the public Tix names may not be the
+        # same as the pathname component
+        self.subwidget_list = {}
+
+    # We set up an attribute access function so that it is possible to
+    # do w.ok['text'] = 'Hello' rather than w.subwidget('ok')['text'] = 'Hello'
+    # when w is a StdButtonBox.
+    # We can even do w.ok.invoke() because w.ok is subclassed from the
+    # Button class if you go through the proper constructors
+    def __getattr__(self, name):
+        if self.subwidget_list.has_key(name):
+            return self.subwidget_list[name]
+        raise AttributeError, name
+
+    def set_silent(self, value):
+        """Set a variable without calling its action routine"""
+        self.tk.call('tixSetSilent', self._w, value)
+
+    def subwidget(self, name):
+        """Return the named subwidget (which must have been created by
+        the sub-class)."""
+        n = self._subwidget_name(name)
+        if not n:
+            raise TclError, "Subwidget " + name + " not child of " + self._name
+        # Remove header of name and leading dot
+        n = n[len(self._w)+1:]
+        return self._nametowidget(n)
+
+    def subwidgets_all(self):
+        """Return all subwidgets."""
+        names = self._subwidget_names()
+        if not names:
+            return []
+        retlist = []
+        for name in names:
+            name = name[len(self._w)+1:]
+            try:
+                retlist.append(self._nametowidget(name))
+            except:
+                # some of the widgets are unknown e.g. border in LabelFrame
+                pass
+        return retlist
+
+    def _subwidget_name(self,name):
+        """Get a subwidget name (returns a String, not a Widget !)"""
+        try:
+            return self.tk.call(self._w, 'subwidget', name)
+        except TclError:
+            return None
+
+    def _subwidget_names(self):
+        """Return the name of all subwidgets."""
+        try:
+            x = self.tk.call(self._w, 'subwidgets', '-all')
+            return self.tk.split(x)
+        except TclError:
+            return None
+
+    def config_all(self, option, value):
+        """Set configuration options for all subwidgets (and self)."""
+        if option == '':
+            return
+        elif not isinstance(option, StringType):
+            option = repr(option)
+        if not isinstance(value, StringType):
+            value = repr(value)
+        names = self._subwidget_names()
+        for name in names:
+            self.tk.call(name, 'configure', '-' + option, value)
+    # These are missing from Tkinter
+    def image_create(self, imgtype, cnf={}, master=None, **kw):
+        if not master:
+            master = tkinter._default_root
+            if not master:
+                raise RuntimeError, 'Too early to create image'
+        if kw and cnf: cnf = _cnfmerge((cnf, kw))
+        elif kw: cnf = kw
+        options = ()
+        for k, v in cnf.items():
+            if callable(v):
+                v = self._register(v)
+            options = options + ('-'+k, v)
+        return master.tk.call(('image', 'create', imgtype,) + options)
+    def image_delete(self, imgname):
+        try:
+            self.tk.call('image', 'delete', imgname)
+        except TclError:
+            # May happen if the root was destroyed
+            pass
+
+# Subwidgets are child widgets created automatically by mega-widgets.
+# In python, we have to create these subwidgets manually to mirror their
+# existence in Tk/Tix.
+class TixSubWidget(TixWidget):
+    """Subwidget class.
+
+    This is used to mirror child widgets automatically created
+    by Tix/Tk as part of a mega-widget in Python (which is not informed
+    of this)"""
+
+    def __init__(self, master, name,
+               destroy_physically=1, check_intermediate=1):
+        if check_intermediate:
+            path = master._subwidget_name(name)
+            try:
+                path = path[len(master._w)+1:]
+                plist = path.split('.')
+            except:
+                plist = []
+
+        if not check_intermediate:
+            # immediate descendant
+            TixWidget.__init__(self, master, None, None, {'name' : name})
+        else:
+            # Ensure that the intermediate widgets exist
+            parent = master
+            for i in range(len(plist) - 1):
+                n = '.'.join(plist[:i+1])
+                try:
+                    w = master._nametowidget(n)
+                    parent = w
+                except KeyError:
+                    # Create the intermediate widget
+                    parent = TixSubWidget(parent, plist[i],
+                                          destroy_physically=0,
+                                          check_intermediate=0)
+            # The Tk widget name is in plist, not in name
+            if plist:
+                name = plist[-1]
+            TixWidget.__init__(self, parent, None, None, {'name' : name})
+        self.destroy_physically = destroy_physically
+
+    def destroy(self):
+        # For some widgets e.g., a NoteBook, when we call destructors,
+        # we must be careful not to destroy the frame widget since this
+        # also destroys the parent NoteBook thus leading to an exception
+        # in Tkinter when it finally calls Tcl to destroy the NoteBook
+        for c in self.children.values(): c.destroy()
+        if self.master.children.has_key(self._name):
+            del self.master.children[self._name]
+        if self.master.subwidget_list.has_key(self._name):
+            del self.master.subwidget_list[self._name]
+        if self.destroy_physically:
+            # This is bypassed only for a few widgets
+            self.tk.call('destroy', self._w)
+
+
+# Useful func. to split Tcl lists and return as a dict. From Tkinter.py
+def _lst2dict(lst):
+    dict = {}
+    for x in lst:
+        dict[x[0][1:]] = (x[0][1:],) + x[1:]
+    return dict
+
+# Useful class to create a display style - later shared by many items.
+# Contributed by Steffen Kremser
+class DisplayStyle:
+    """DisplayStyle - handle configuration options shared by
+    (multiple) Display Items"""
+
+    def __init__(self, itemtype, cnf={}, **kw):
+        master = _default_root              # global from Tkinter
+        if not master and cnf.has_key('refwindow'): master=cnf['refwindow']
+        elif not master and kw.has_key('refwindow'):  master= kw['refwindow']
+        elif not master: raise RuntimeError, "Too early to create display style: no root window"
+        self.tk = master.tk
+        self.stylename = self.tk.call('tixDisplayStyle', itemtype,
+                            *self._options(cnf,kw) )
+
+    def __str__(self):
+        return self.stylename
+
+    def _options(self, cnf, kw):
+        if kw and cnf:
+            cnf = _cnfmerge((cnf, kw))
+        elif kw:
+            cnf = kw
+        opts = ()
+        for k, v in cnf.items():
+            opts = opts + ('-'+k, v)
+        return opts
+
+    def delete(self):
+        self.tk.call(self.stylename, 'delete')
+
+    def __setitem__(self,key,value):
+        self.tk.call(self.stylename, 'configure', '-%s'%key, value)
+
+    def config(self, cnf={}, **kw):
+        return _lst2dict(
+            self.tk.split(
+            self.tk.call(
+                  self.stylename, 'configure', *self._options(cnf,kw))))
+
+    def __getitem__(self,key):
+        return self.tk.call(self.stylename, 'cget', '-%s'%key)
+
+
+######################################################
+### The Tix Widget classes - in alphabetical order ###
+######################################################
+
+class Balloon(TixWidget):
+    """Balloon help widget.
+
+    Subwidget       Class
+    ---------       -----
+    label           Label
+    message         Message"""
+
+    # FIXME: It should inherit -superclass tixShell
+    def __init__(self, master=None, cnf={}, **kw):
+        # static seem to be -installcolormap -initwait -statusbar -cursor
+        static = ['options', 'installcolormap', 'initwait', 'statusbar',
+                  'cursor']
+        TixWidget.__init__(self, master, 'tixBalloon', static, cnf, kw)
+        self.subwidget_list['label'] = _dummyLabel(self, 'label',
+                                                   destroy_physically=0)
+        self.subwidget_list['message'] = _dummyLabel(self, 'message',
+                                                     destroy_physically=0)
+
+    def bind_widget(self, widget, cnf={}, **kw):
+        """Bind balloon widget to another.
+        One balloon widget may be bound to several widgets at the same time"""
+        self.tk.call(self._w, 'bind', widget._w, *self._options(cnf, kw))
+
+    def unbind_widget(self, widget):
+        self.tk.call(self._w, 'unbind', widget._w)
+
+class ButtonBox(TixWidget):
+    """ButtonBox - A container for pushbuttons.
+    Subwidgets are the buttons added with the add method.
+    """
+    def __init__(self, master=None, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixButtonBox',
+                           ['orientation', 'options'], cnf, kw)
+
+    def add(self, name, cnf={}, **kw):
+        """Add a button with given name to box."""
+
+        btn = self.tk.call(self._w, 'add', name, *self._options(cnf, kw))
+        self.subwidget_list[name] = _dummyButton(self, name)
+        return btn
+
+    def invoke(self, name):
+        if self.subwidget_list.has_key(name):
+            self.tk.call(self._w, 'invoke', name)
+
+class ComboBox(TixWidget):
+    """ComboBox - an Entry field with a dropdown menu. The user can select a
+    choice by either typing in the entry subwdget or selecting from the
+    listbox subwidget.
+
+    Subwidget       Class
+    ---------       -----
+    entry       Entry
+    arrow       Button
+    slistbox    ScrolledListBox
+    tick        Button
+    cross       Button : present if created with the fancy option"""
+
+    # FIXME: It should inherit -superclass tixLabelWidget
+    def __init__ (self, master=None, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixComboBox',
+                           ['editable', 'dropdown', 'fancy', 'options'],
+                           cnf, kw)
+        self.subwidget_list['label'] = _dummyLabel(self, 'label')
+        self.subwidget_list['entry'] = _dummyEntry(self, 'entry')
+        self.subwidget_list['arrow'] = _dummyButton(self, 'arrow')
+        self.subwidget_list['slistbox'] = _dummyScrolledListBox(self,
+                                                                'slistbox')
+        try:
+            self.subwidget_list['tick'] = _dummyButton(self, 'tick')
+            self.subwidget_list['cross'] = _dummyButton(self, 'cross')
+        except TypeError:
+            # unavailable when -fancy not specified
+            pass
+
+    # align
+
+    def add_history(self, str):
+        self.tk.call(self._w, 'addhistory', str)
+
+    def append_history(self, str):
+        self.tk.call(self._w, 'appendhistory', str)
+
+    def insert(self, index, str):
+        self.tk.call(self._w, 'insert', index, str)
+
+    def pick(self, index):
+        self.tk.call(self._w, 'pick', index)
+
+class Control(TixWidget):
+    """Control - An entry field with value change arrows.  The user can
+    adjust the value by pressing the two arrow buttons or by entering
+    the value directly into the entry. The new value will be checked
+    against the user-defined upper and lower limits.
+
+    Subwidget       Class
+    ---------       -----
+    incr       Button
+    decr       Button
+    entry       Entry
+    label       Label"""
+
+    # FIXME: It should inherit -superclass tixLabelWidget
+    def __init__ (self, master=None, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixControl', ['options'], cnf, kw)
+        self.subwidget_list['incr'] = _dummyButton(self, 'incr')
+        self.subwidget_list['decr'] = _dummyButton(self, 'decr')
+        self.subwidget_list['label'] = _dummyLabel(self, 'label')
+        self.subwidget_list['entry'] = _dummyEntry(self, 'entry')
+
+    def decrement(self):
+        self.tk.call(self._w, 'decr')
+
+    def increment(self):
+        self.tk.call(self._w, 'incr')
+
+    def invoke(self):
+        self.tk.call(self._w, 'invoke')
+
+    def update(self):
+        self.tk.call(self._w, 'update')
+
+class DirList(TixWidget):
+    """DirList - displays a list view of a directory, its previous
+    directories and its sub-directories. The user can choose one of
+    the directories displayed in the list or change to another directory.
+
+    Subwidget       Class
+    ---------       -----
+    hlist       HList
+    hsb              Scrollbar
+    vsb              Scrollbar"""
+
+    # FIXME: It should inherit -superclass tixScrolledHList
+    def __init__(self, master, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixDirList', ['options'], cnf, kw)
+        self.subwidget_list['hlist'] = _dummyHList(self, 'hlist')
+        self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
+        self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')
+
+    def chdir(self, dir):
+        self.tk.call(self._w, 'chdir', dir)
+
+class DirTree(TixWidget):
+    """DirTree - Directory Listing in a hierarchical view.
+    Displays a tree view of a directory, its previous directories and its
+    sub-directories. The user can choose one of the directories displayed
+    in the list or change to another directory.
+
+    Subwidget       Class
+    ---------       -----
+    hlist           HList
+    hsb             Scrollbar
+    vsb             Scrollbar"""
+
+    # FIXME: It should inherit -superclass tixScrolledHList
+    def __init__(self, master, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixDirTree', ['options'], cnf, kw)
+        self.subwidget_list['hlist'] = _dummyHList(self, 'hlist')
+        self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
+        self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')
+
+    def chdir(self, dir):
+        self.tk.call(self._w, 'chdir', dir)
+
+class DirSelectBox(TixWidget):
+    """DirSelectBox - Motif style file select box.
+    It is generally used for
+    the user to choose a file. FileSelectBox stores the files mostly
+    recently selected into a ComboBox widget so that they can be quickly
+    selected again.
+
+    Subwidget       Class
+    ---------       -----
+    selection       ComboBox
+    filter          ComboBox
+    dirlist         ScrolledListBox
+    filelist        ScrolledListBox"""
+
+    def __init__(self, master, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixDirSelectBox', ['options'], cnf, kw)
+        self.subwidget_list['dirlist'] = _dummyDirList(self, 'dirlist')
+        self.subwidget_list['dircbx'] = _dummyFileComboBox(self, 'dircbx')
+
+class ExFileSelectBox(TixWidget):
+    """ExFileSelectBox - MS Windows style file select box.
+    It provides an convenient method for the user to select files.
+
+    Subwidget       Class
+    ---------       -----
+    cancel       Button
+    ok              Button
+    hidden       Checkbutton
+    types       ComboBox
+    dir              ComboBox
+    file       ComboBox
+    dirlist       ScrolledListBox
+    filelist       ScrolledListBox"""
+
+    def __init__(self, master, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixExFileSelectBox', ['options'], cnf, kw)
+        self.subwidget_list['cancel'] = _dummyButton(self, 'cancel')
+        self.subwidget_list['ok'] = _dummyButton(self, 'ok')
+        self.subwidget_list['hidden'] = _dummyCheckbutton(self, 'hidden')
+        self.subwidget_list['types'] = _dummyComboBox(self, 'types')
+        self.subwidget_list['dir'] = _dummyComboBox(self, 'dir')
+        self.subwidget_list['dirlist'] = _dummyDirList(self, 'dirlist')
+        self.subwidget_list['file'] = _dummyComboBox(self, 'file')
+        self.subwidget_list['filelist'] = _dummyScrolledListBox(self, 'filelist')
+
+    def filter(self):
+        self.tk.call(self._w, 'filter')
+
+    def invoke(self):
+        self.tk.call(self._w, 'invoke')
+
+
+# Should inherit from a Dialog class
+class DirSelectDialog(TixWidget):
+    """The DirSelectDialog widget presents the directories in the file
+    system in a dialog window. The user can use this dialog window to
+    navigate through the file system to select the desired directory.
+
+    Subwidgets       Class
+    ----------       -----
+    dirbox       DirSelectDialog"""
+
+    # FIXME: It should inherit -superclass tixDialogShell
+    def __init__(self, master, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixDirSelectDialog',
+                           ['options'], cnf, kw)
+        self.subwidget_list['dirbox'] = _dummyDirSelectBox(self, 'dirbox')
+        # cancel and ok buttons are missing
+
+    def popup(self):
+        self.tk.call(self._w, 'popup')
+
+    def popdown(self):
+        self.tk.call(self._w, 'popdown')
+
+
+# Should inherit from a Dialog class
+class ExFileSelectDialog(TixWidget):
+    """ExFileSelectDialog - MS Windows style file select dialog.
+    It provides an convenient method for the user to select files.
+
+    Subwidgets       Class
+    ----------       -----
+    fsbox       ExFileSelectBox"""
+
+    # FIXME: It should inherit -superclass tixDialogShell
+    def __init__(self, master, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixExFileSelectDialog',
+                           ['options'], cnf, kw)
+        self.subwidget_list['fsbox'] = _dummyExFileSelectBox(self, 'fsbox')
+
+    def popup(self):
+        self.tk.call(self._w, 'popup')
+
+    def popdown(self):
+        self.tk.call(self._w, 'popdown')
+
+class FileSelectBox(TixWidget):
+    """ExFileSelectBox - Motif style file select box.
+    It is generally used for
+    the user to choose a file. FileSelectBox stores the files mostly
+    recently selected into a ComboBox widget so that they can be quickly
+    selected again.
+
+    Subwidget       Class
+    ---------       -----
+    selection       ComboBox
+    filter          ComboBox
+    dirlist         ScrolledListBox
+    filelist        ScrolledListBox"""
+
+    def __init__(self, master, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixFileSelectBox', ['options'], cnf, kw)
+        self.subwidget_list['dirlist'] = _dummyScrolledListBox(self, 'dirlist')
+        self.subwidget_list['filelist'] = _dummyScrolledListBox(self, 'filelist')
+        self.subwidget_list['filter'] = _dummyComboBox(self, 'filter')
+        self.subwidget_list['selection'] = _dummyComboBox(self, 'selection')
+
+    def apply_filter(self):              # name of subwidget is same as command
+        self.tk.call(self._w, 'filter')
+
+    def invoke(self):
+        self.tk.call(self._w, 'invoke')
+
+# Should inherit from a Dialog class
+class FileSelectDialog(TixWidget):
+    """FileSelectDialog - Motif style file select dialog.
+
+    Subwidgets       Class
+    ----------       -----
+    btns       StdButtonBox
+    fsbox       FileSelectBox"""
+
+    # FIXME: It should inherit -superclass tixStdDialogShell
+    def __init__(self, master, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixFileSelectDialog',
+                           ['options'], cnf, kw)
+        self.subwidget_list['btns'] = _dummyStdButtonBox(self, 'btns')
+        self.subwidget_list['fsbox'] = _dummyFileSelectBox(self, 'fsbox')
+
+    def popup(self):
+        self.tk.call(self._w, 'popup')
+
+    def popdown(self):
+        self.tk.call(self._w, 'popdown')
+
+class FileEntry(TixWidget):
+    """FileEntry - Entry field with button that invokes a FileSelectDialog.
+    The user can type in the filename manually. Alternatively, the user can
+    press the button widget that sits next to the entry, which will bring
+    up a file selection dialog.
+
+    Subwidgets       Class
+    ----------       -----
+    button       Button
+    entry       Entry"""
+
+    # FIXME: It should inherit -superclass tixLabelWidget
+    def __init__(self, master, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixFileEntry',
+                           ['dialogtype', 'options'], cnf, kw)
+        self.subwidget_list['button'] = _dummyButton(self, 'button')
+        self.subwidget_list['entry'] = _dummyEntry(self, 'entry')
+
+    def invoke(self):
+        self.tk.call(self._w, 'invoke')
+
+    def file_dialog(self):
+        # FIXME: return python object
+        pass
+
+class HList(TixWidget):
+    """HList - Hierarchy display  widget can be used to display any data
+    that have a hierarchical structure, for example, file system directory
+    trees. The list entries are indented and connected by branch lines
+    according to their places in the hierachy.
+
+    Subwidgets - None"""
+
+    def __init__ (self,master=None,cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixHList',
+                           ['columns', 'options'], cnf, kw)
+
+    def add(self, entry, cnf={}, **kw):
+        return self.tk.call(self._w, 'add', entry, *self._options(cnf, kw))
+
+    def add_child(self, parent=None, cnf={}, **kw):
+        if not parent:
+            parent = ''
+        return self.tk.call(
+                     self._w, 'addchild', parent, *self._options(cnf, kw))
+
+    def anchor_set(self, entry):
+        self.tk.call(self._w, 'anchor', 'set', entry)
+
+    def anchor_clear(self):
+        self.tk.call(self._w, 'anchor', 'clear')
+
+    def column_width(self, col=0, width=None, chars=None):
+        if not chars:
+            return self.tk.call(self._w, 'column', 'width', col, width)
+        else:
+            return self.tk.call(self._w, 'column', 'width', col,
+                                '-char', chars)
+
+    def delete_all(self):
+        self.tk.call(self._w, 'delete', 'all')
+
+    def delete_entry(self, entry):
+        self.tk.call(self._w, 'delete', 'entry', entry)
+
+    def delete_offsprings(self, entry):
+        self.tk.call(self._w, 'delete', 'offsprings', entry)
+
+    def delete_siblings(self, entry):
+        self.tk.call(self._w, 'delete', 'siblings', entry)
+
+    def dragsite_set(self, index):
+        self.tk.call(self._w, 'dragsite', 'set', index)
+
+    def dragsite_clear(self):
+        self.tk.call(self._w, 'dragsite', 'clear')
+
+    def dropsite_set(self, index):
+        self.tk.call(self._w, 'dropsite', 'set', index)
+
+    def dropsite_clear(self):
+        self.tk.call(self._w, 'dropsite', 'clear')
+
+    def header_create(self, col, cnf={}, **kw):
+        self.tk.call(self._w, 'header', 'create', col, *self._options(cnf, kw))
+
+    def header_configure(self, col, cnf={}, **kw):
+        if cnf is None:
+            return _lst2dict(
+                self.tk.split(
+                self.tk.call(self._w, 'header', 'configure', col)))
+        self.tk.call(self._w, 'header', 'configure', col,
+                     *self._options(cnf, kw))
+
+    def header_cget(self,  col, opt):
+        return self.tk.call(self._w, 'header', 'cget', col, opt)
+
+    def header_exists(self,  col):
+        return self.tk.call(self._w, 'header', 'exists', col)
+
+    def header_delete(self, col):
+        self.tk.call(self._w, 'header', 'delete', col)
+
+    def header_size(self, col):
+        return self.tk.call(self._w, 'header', 'size', col)
+
+    def hide_entry(self, entry):
+        self.tk.call(self._w, 'hide', 'entry', entry)
+
+    def indicator_create(self, entry, cnf={}, **kw):
+        self.tk.call(
+              self._w, 'indicator', 'create', entry, *self._options(cnf, kw))
+
+    def indicator_configure(self, entry, cnf={}, **kw):
+        if cnf is None:
+            return _lst2dict(
+                self.tk.split(
+                self.tk.call(self._w, 'indicator', 'configure', entry)))
+        self.tk.call(
+              self._w, 'indicator', 'configure', entry, *self._options(cnf, kw))
+
+    def indicator_cget(self,  entry, opt):
+        return self.tk.call(self._w, 'indicator', 'cget', entry, opt)
+
+    def indicator_exists(self,  entry):
+        return self.tk.call (self._w, 'indicator', 'exists', entry)
+
+    def indicator_delete(self, entry):
+        self.tk.call(self._w, 'indicator', 'delete', entry)
+
+    def indicator_size(self, entry):
+        return self.tk.call(self._w, 'indicator', 'size', entry)
+
+    def info_anchor(self):
+        return self.tk.call(self._w, 'info', 'anchor')
+
+    def info_children(self, entry=None):
+        c = self.tk.call(self._w, 'info', 'children', entry)
+        return self.tk.splitlist(c)
+
+    def info_data(self, entry):
+        return self.tk.call(self._w, 'info', 'data', entry)
+
+    def info_exists(self, entry):
+        return self.tk.call(self._w, 'info', 'exists', entry)
+
+    def info_hidden(self, entry):
+        return self.tk.call(self._w, 'info', 'hidden', entry)
+
+    def info_next(self, entry):
+        return self.tk.call(self._w, 'info', 'next', entry)
+
+    def info_parent(self, entry):
+        return self.tk.call(self._w, 'info', 'parent', entry)
+
+    def info_prev(self, entry):
+        return self.tk.call(self._w, 'info', 'prev', entry)
+
+    def info_selection(self):
+        c = self.tk.call(self._w, 'info', 'selection')
+        return self.tk.splitlist(c)
+
+    def item_cget(self, entry, col, opt):
+        return self.tk.call(self._w, 'item', 'cget', entry, col, opt)
+
+    def item_configure(self, entry, col, cnf={}, **kw):
+        if cnf is None:
+            return _lst2dict(
+                self.tk.split(
+                self.tk.call(self._w, 'item', 'configure', entry, col)))
+        self.tk.call(self._w, 'item', 'configure', entry, col,
+              *self._options(cnf, kw))
+
+    def item_create(self, entry, col, cnf={}, **kw):
+        self.tk.call(
+              self._w, 'item', 'create', entry, col, *self._options(cnf, kw))
+
+    def item_exists(self, entry, col):
+        return self.tk.call(self._w, 'item', 'exists', entry, col)
+
+    def item_delete(self, entry, col):
+        self.tk.call(self._w, 'item', 'delete', entry, col)
+
+    def entrycget(self, entry, opt):
+        return self.tk.call(self._w, 'entrycget', entry, opt)
+
+    def entryconfigure(self, entry, cnf={}, **kw):
+        if cnf is None:
+            return _lst2dict(
+                self.tk.split(
+                self.tk.call(self._w, 'entryconfigure', entry)))
+        self.tk.call(self._w, 'entryconfigure', entry,
+              *self._options(cnf, kw))
+
+    def nearest(self, y):
+        return self.tk.call(self._w, 'nearest', y)
+
+    def see(self, entry):
+        self.tk.call(self._w, 'see', entry)
+
+    def selection_clear(self, cnf={}, **kw):
+        self.tk.call(self._w, 'selection', 'clear', *self._options(cnf, kw))
+
+    def selection_includes(self, entry):
+        return self.tk.call(self._w, 'selection', 'includes', entry)
+
+    def selection_set(self, first, last=None):
+        self.tk.call(self._w, 'selection', 'set', first, last)
+
+    def show_entry(self, entry):
+        return self.tk.call(self._w, 'show', 'entry', entry)
+
+    def xview(self, *args):
+        self.tk.call(self._w, 'xview', *args)
+
+    def yview(self, *args):
+        self.tk.call(self._w, 'yview', *args)
+
+class InputOnly(TixWidget):
+    """InputOnly - Invisible widget. Unix only.
+
+    Subwidgets - None"""
+
+    def __init__ (self,master=None,cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixInputOnly', None, cnf, kw)
+
+class LabelEntry(TixWidget):
+    """LabelEntry - Entry field with label. Packages an entry widget
+    and a label into one mega widget. It can beused be used to simplify
+    the creation of ``entry-form'' type of interface.
+
+    Subwidgets       Class
+    ----------       -----
+    label       Label
+    entry       Entry"""
+
+    def __init__ (self,master=None,cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixLabelEntry',
+                           ['labelside','options'], cnf, kw)
+        self.subwidget_list['label'] = _dummyLabel(self, 'label')
+        self.subwidget_list['entry'] = _dummyEntry(self, 'entry')
+
+class LabelFrame(TixWidget):
+    """LabelFrame - Labelled Frame container. Packages a frame widget
+    and a label into one mega widget. To create widgets inside a
+    LabelFrame widget, one creates the new widgets relative to the
+    frame subwidget and manage them inside the frame subwidget.
+
+    Subwidgets       Class
+    ----------       -----
+    label       Label
+    frame       Frame"""
+
+    def __init__ (self,master=None,cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixLabelFrame',
+                           ['labelside','options'], cnf, kw)
+        self.subwidget_list['label'] = _dummyLabel(self, 'label')
+        self.subwidget_list['frame'] = _dummyFrame(self, 'frame')
+
+
+class ListNoteBook(TixWidget):
+    """A ListNoteBook widget is very similar to the TixNoteBook widget:
+    it can be used to display many windows in a limited space using a
+    notebook metaphor. The notebook is divided into a stack of pages
+    (windows). At one time only one of these pages can be shown.
+    The user can navigate through these pages by
+    choosing the name of the desired page in the hlist subwidget."""
+
+    def __init__(self, master, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixListNoteBook', ['options'], cnf, kw)
+        # Is this necessary? It's not an exposed subwidget in Tix.
+        self.subwidget_list['pane'] = _dummyPanedWindow(self, 'pane',
+                                                        destroy_physically=0)
+        self.subwidget_list['hlist'] = _dummyHList(self, 'hlist')
+        self.subwidget_list['shlist'] = _dummyScrolledHList(self, 'shlist')
+
+    def add(self, name, cnf={}, **kw):
+        self.tk.call(self._w, 'add', name, *self._options(cnf, kw))
+        self.subwidget_list[name] = TixSubWidget(self, name)
+        return self.subwidget_list[name]
+
+    def page(self, name):
+        return self.subwidget(name)
+
+    def pages(self):
+        # Can't call subwidgets_all directly because we don't want .nbframe
+        names = self.tk.split(self.tk.call(self._w, 'pages'))
+        ret = []
+        for x in names:
+            ret.append(self.subwidget(x))
+        return ret
+
+    def raise_page(self, name):              # raise is a python keyword
+        self.tk.call(self._w, 'raise', name)
+
+class Meter(TixWidget):
+    """The Meter widget can be used to show the progress of a background
+    job which may take a long time to execute.
+    """
+
+    def __init__(self, master=None, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixMeter',
+                           ['options'], cnf, kw)
+
+class NoteBook(TixWidget):
+    """NoteBook - Multi-page container widget (tabbed notebook metaphor).
+
+    Subwidgets       Class
+    ----------       -----
+    nbframe       NoteBookFrame
+    <pages>       page widgets added dynamically with the add method"""
+
+    def __init__ (self,master=None,cnf={}, **kw):
+        TixWidget.__init__(self,master,'tixNoteBook', ['options'], cnf, kw)
+        self.subwidget_list['nbframe'] = TixSubWidget(self, 'nbframe',
+                                                      destroy_physically=0)
+
+    def add(self, name, cnf={}, **kw):
+        self.tk.call(self._w, 'add', name, *self._options(cnf, kw))
+        self.subwidget_list[name] = TixSubWidget(self, name)
+        return self.subwidget_list[name]
+
+    def delete(self, name):
+        self.tk.call(self._w, 'delete', name)
+        self.subwidget_list[name].destroy()
+        del self.subwidget_list[name]
+
+    def page(self, name):
+        return self.subwidget(name)
+
+    def pages(self):
+        # Can't call subwidgets_all directly because we don't want .nbframe
+        names = self.tk.split(self.tk.call(self._w, 'pages'))
+        ret = []
+        for x in names:
+            ret.append(self.subwidget(x))
+        return ret
+
+    def raise_page(self, name):              # raise is a python keyword
+        self.tk.call(self._w, 'raise', name)
+
+    def raised(self):
+        return self.tk.call(self._w, 'raised')
+
+class NoteBookFrame(TixWidget):
+    # FIXME: This is dangerous to expose to be called on its own.
+    pass
+
+class OptionMenu(TixWidget):
+    """OptionMenu - creates a menu button of options.
+
+    Subwidget       Class
+    ---------       -----
+    menubutton      Menubutton
+    menu            Menu"""
+
+    def __init__(self, master, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixOptionMenu', ['options'], cnf, kw)
+        self.subwidget_list['menubutton'] = _dummyMenubutton(self, 'menubutton')
+        self.subwidget_list['menu'] = _dummyMenu(self, 'menu')
+
+    def add_command(self, name, cnf={}, **kw):
+        self.tk.call(self._w, 'add', 'command', name, *self._options(cnf, kw))
+
+    def add_separator(self, name, cnf={}, **kw):
+        self.tk.call(self._w, 'add', 'separator', name, *self._options(cnf, kw))
+
+    def delete(self, name):
+        self.tk.call(self._w, 'delete', name)
+
+    def disable(self, name):
+        self.tk.call(self._w, 'disable', name)
+
+    def enable(self, name):
+        self.tk.call(self._w, 'enable', name)
+
+class PanedWindow(TixWidget):
+    """PanedWindow - Multi-pane container widget
+    allows the user to interactively manipulate the sizes of several
+    panes. The panes can be arranged either vertically or horizontally.The
+    user changes the sizes of the panes by dragging the resize handle
+    between two panes.
+
+    Subwidgets       Class
+    ----------       -----
+    <panes>       g/p widgets added dynamically with the add method."""
+
+    def __init__(self, master, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixPanedWindow', ['orientation', 'options'], cnf, kw)
+
+    # add delete forget panecget paneconfigure panes setsize
+    def add(self, name, cnf={}, **kw):
+        self.tk.call(self._w, 'add', name, *self._options(cnf, kw))
+        self.subwidget_list[name] = TixSubWidget(self, name,
+                                                 check_intermediate=0)
+        return self.subwidget_list[name]
+
+    def delete(self, name):
+        self.tk.call(self._w, 'delete', name)
+        self.subwidget_list[name].destroy()
+        del self.subwidget_list[name]
+
+    def forget(self, name):
+        self.tk.call(self._w, 'forget', name)
+
+    def panecget(self,  entry, opt):
+        return self.tk.call(self._w, 'panecget', entry, opt)
+
+    def paneconfigure(self, entry, cnf={}, **kw):
+        if cnf is None:
+            return _lst2dict(
+                self.tk.split(
+                self.tk.call(self._w, 'paneconfigure', entry)))
+        self.tk.call(self._w, 'paneconfigure', entry, *self._options(cnf, kw))
+
+    def panes(self):
+        names = self.tk.call(self._w, 'panes')
+        ret = []
+        for x in names:
+            ret.append(self.subwidget(x))
+        return ret
+
+class PopupMenu(TixWidget):
+    """PopupMenu widget can be used as a replacement of the tk_popup command.
+    The advantage of the Tix PopupMenu widget is it requires less application
+    code to manipulate.
+
+
+    Subwidgets       Class
+    ----------       -----
+    menubutton       Menubutton
+    menu       Menu"""
+
+    # FIXME: It should inherit -superclass tixShell
+    def __init__(self, master, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixPopupMenu', ['options'], cnf, kw)
+        self.subwidget_list['menubutton'] = _dummyMenubutton(self, 'menubutton')
+        self.subwidget_list['menu'] = _dummyMenu(self, 'menu')
+
+    def bind_widget(self, widget):
+        self.tk.call(self._w, 'bind', widget._w)
+
+    def unbind_widget(self, widget):
+        self.tk.call(self._w, 'unbind', widget._w)
+
+    def post_widget(self, widget, x, y):
+        self.tk.call(self._w, 'post', widget._w, x, y)
+
+class ResizeHandle(TixWidget):
+    """Internal widget to draw resize handles on Scrolled widgets."""
+    def __init__(self, master, cnf={}, **kw):
+        # There seems to be a Tix bug rejecting the configure method
+        # Let's try making the flags -static
+        flags = ['options', 'command', 'cursorfg', 'cursorbg',
+                 'handlesize', 'hintcolor', 'hintwidth',
+                 'x', 'y']
+        # In fact, x y height width are configurable
+        TixWidget.__init__(self, master, 'tixResizeHandle',
+                           flags, cnf, kw)
+
+    def attach_widget(self, widget):
+        self.tk.call(self._w, 'attachwidget', widget._w)
+
+    def detach_widget(self, widget):
+        self.tk.call(self._w, 'detachwidget', widget._w)
+
+    def hide(self, widget):
+        self.tk.call(self._w, 'hide', widget._w)
+
+    def show(self, widget):
+        self.tk.call(self._w, 'show', widget._w)
+
+class ScrolledHList(TixWidget):
+    """ScrolledHList - HList with automatic scrollbars."""
+
+    # FIXME: It should inherit -superclass tixScrolledWidget
+    def __init__(self, master, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixScrolledHList', ['options'],
+                           cnf, kw)
+        self.subwidget_list['hlist'] = _dummyHList(self, 'hlist')
+        self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
+        self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')
+
+class ScrolledListBox(TixWidget):
+    """ScrolledListBox - Listbox with automatic scrollbars."""
+
+    # FIXME: It should inherit -superclass tixScrolledWidget
+    def __init__(self, master, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixScrolledListBox', ['options'], cnf, kw)
+        self.subwidget_list['listbox'] = _dummyListbox(self, 'listbox')
+        self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
+        self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')
+
+class ScrolledText(TixWidget):
+    """ScrolledText - Text with automatic scrollbars."""
+
+    # FIXME: It should inherit -superclass tixScrolledWidget
+    def __init__(self, master, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixScrolledText', ['options'], cnf, kw)
+        self.subwidget_list['text'] = _dummyText(self, 'text')
+        self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
+        self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')
+
+class ScrolledTList(TixWidget):
+    """ScrolledTList - TList with automatic scrollbars."""
+
+    # FIXME: It should inherit -superclass tixScrolledWidget
+    def __init__(self, master, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixScrolledTList', ['options'],
+                           cnf, kw)
+        self.subwidget_list['tlist'] = _dummyTList(self, 'tlist')
+        self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
+        self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')
+
+class ScrolledWindow(TixWidget):
+    """ScrolledWindow - Window with automatic scrollbars."""
+
+    # FIXME: It should inherit -superclass tixScrolledWidget
+    def __init__(self, master, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixScrolledWindow', ['options'], cnf, kw)
+        self.subwidget_list['window'] = _dummyFrame(self, 'window')
+        self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
+        self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')
+
+class Select(TixWidget):
+    """Select - Container of button subwidgets. It can be used to provide
+    radio-box or check-box style of selection options for the user.
+
+    Subwidgets are buttons added dynamically using the add method."""
+
+    # FIXME: It should inherit -superclass tixLabelWidget
+    def __init__(self, master, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixSelect',
+                           ['allowzero', 'radio', 'orientation', 'labelside',
+                            'options'],
+                           cnf, kw)
+        self.subwidget_list['label'] = _dummyLabel(self, 'label')
+
+    def add(self, name, cnf={}, **kw):
+        self.tk.call(self._w, 'add', name, *self._options(cnf, kw))
+        self.subwidget_list[name] = _dummyButton(self, name)
+        return self.subwidget_list[name]
+
+    def invoke(self, name):
+        self.tk.call(self._w, 'invoke', name)
+
+class Shell(TixWidget):
+    """Toplevel window.
+
+    Subwidgets - None"""
+
+    def __init__ (self,master=None,cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixShell', ['options', 'title'], cnf, kw)
+
+class DialogShell(TixWidget):
+    """Toplevel window, with popup popdown and center methods.
+    It tells the window manager that it is a dialog window and should be
+    treated specially. The exact treatment depends on the treatment of
+    the window manager.
+
+    Subwidgets - None"""
+
+    # FIXME: It should inherit from  Shell
+    def __init__ (self,master=None,cnf={}, **kw):
+        TixWidget.__init__(self, master,
+                           'tixDialogShell',
+                           ['options', 'title', 'mapped',
+                            'minheight', 'minwidth',
+                            'parent', 'transient'], cnf, kw)
+
+    def popdown(self):
+        self.tk.call(self._w, 'popdown')
+
+    def popup(self):
+        self.tk.call(self._w, 'popup')
+
+    def center(self):
+        self.tk.call(self._w, 'center')
+
+class StdButtonBox(TixWidget):
+    """StdButtonBox - Standard Button Box (OK, Apply, Cancel and Help) """
+
+    def __init__(self, master=None, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixStdButtonBox',
+                           ['orientation', 'options'], cnf, kw)
+        self.subwidget_list['ok'] = _dummyButton(self, 'ok')
+        self.subwidget_list['apply'] = _dummyButton(self, 'apply')
+        self.subwidget_list['cancel'] = _dummyButton(self, 'cancel')
+        self.subwidget_list['help'] = _dummyButton(self, 'help')
+
+    def invoke(self, name):
+        if self.subwidget_list.has_key(name):
+            self.tk.call(self._w, 'invoke', name)
+
+class TList(TixWidget):
+    """TList - Hierarchy display widget which can be
+    used to display data in a tabular format. The list entries of a TList
+    widget are similar to the entries in the Tk listbox widget. The main
+    differences are (1) the TList widget can display the list entries in a
+    two dimensional format and (2) you can use graphical images as well as
+    multiple colors and fonts for the list entries.
+
+    Subwidgets - None"""
+
+    def __init__ (self,master=None,cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixTList', ['options'], cnf, kw)
+
+    def active_set(self, index):
+        self.tk.call(self._w, 'active', 'set', index)
+
+    def active_clear(self):
+        self.tk.call(self._w, 'active', 'clear')
+
+    def anchor_set(self, index):
+        self.tk.call(self._w, 'anchor', 'set', index)
+
+    def anchor_clear(self):
+        self.tk.call(self._w, 'anchor', 'clear')
+
+    def delete(self, from_, to=None):
+        self.tk.call(self._w, 'delete', from_, to)
+
+    def dragsite_set(self, index):
+        self.tk.call(self._w, 'dragsite', 'set', index)
+
+    def dragsite_clear(self):
+        self.tk.call(self._w, 'dragsite', 'clear')
+
+    def dropsite_set(self, index):
+        self.tk.call(self._w, 'dropsite', 'set', index)
+
+    def dropsite_clear(self):
+        self.tk.call(self._w, 'dropsite', 'clear')
+
+    def insert(self, index, cnf={}, **kw):
+        self.tk.call(self._w, 'insert', index, *self._options(cnf, kw))
+
+    def info_active(self):
+        return self.tk.call(self._w, 'info', 'active')
+
+    def info_anchor(self):
+        return self.tk.call(self._w, 'info', 'anchor')
+
+    def info_down(self, index):
+        return self.tk.call(self._w, 'info', 'down', index)
+
+    def info_left(self, index):
+        return self.tk.call(self._w, 'info', 'left', index)
+
+    def info_right(self, index):
+        return self.tk.call(self._w, 'info', 'right', index)
+
+    def info_selection(self):
+        c = self.tk.call(self._w, 'info', 'selection')
+        return self.tk.splitlist(c)
+
+    def info_size(self):
+        return self.tk.call(self._w, 'info', 'size')
+
+    def info_up(self, index):
+        return self.tk.call(self._w, 'info', 'up', index)
+
+    def nearest(self, x, y):
+        return self.tk.call(self._w, 'nearest', x, y)
+
+    def see(self, index):
+        self.tk.call(self._w, 'see', index)
+
+    def selection_clear(self, cnf={}, **kw):
+        self.tk.call(self._w, 'selection', 'clear', *self._options(cnf, kw))
+
+    def selection_includes(self, index):
+        return self.tk.call(self._w, 'selection', 'includes', index)
+
+    def selection_set(self, first, last=None):
+        self.tk.call(self._w, 'selection', 'set', first, last)
+
+    def xview(self, *args):
+        self.tk.call(self._w, 'xview', *args)
+
+    def yview(self, *args):
+        self.tk.call(self._w, 'yview', *args)
+
+class Tree(TixWidget):
+    """Tree - The tixTree widget can be used to display hierachical
+    data in a tree form. The user can adjust
+    the view of the tree by opening or closing parts of the tree."""
+
+    # FIXME: It should inherit -superclass tixScrolledWidget
+    def __init__(self, master=None, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixTree',
+                           ['options'], cnf, kw)
+        self.subwidget_list['hlist'] = _dummyHList(self, 'hlist')
+        self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
+        self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')
+
+    def autosetmode(self):
+        '''This command calls the setmode method for all the entries in this
+     Tree widget: if an entry has no child entries, its mode is set to
+     none. Otherwise, if the entry has any hidden child entries, its mode is
+     set to open; otherwise its mode is set to close.'''
+        self.tk.call(self._w, 'autosetmode')
+
+    def close(self, entrypath):
+        '''Close the entry given by entryPath if its mode is close.'''
+        self.tk.call(self._w, 'close', entrypath)
+
+    def getmode(self, entrypath):
+        '''Returns the current mode of the entry given by entryPath.'''
+        return self.tk.call(self._w, 'getmode', entrypath)
+
+    def open(self, entrypath):
+        '''Open the entry given by entryPath if its mode is open.'''
+        self.tk.call(self._w, 'open', entrypath)
+
+    def setmode(self, entrypath, mode='none'):
+        '''This command is used to indicate whether the entry given by
+     entryPath has children entries and whether the children are visible. mode
+     must be one of open, close or none. If mode is set to open, a (+)
+     indicator is drawn next the the entry. If mode is set to close, a (-)
+     indicator is drawn next the the entry. If mode is set to none, no
+     indicators will be drawn for this entry. The default mode is none. The
+     open mode indicates the entry has hidden children and this entry can be
+     opened by the user. The close mode indicates that all the children of the
+     entry are now visible and the entry can be closed by the user.'''
+        self.tk.call(self._w, 'setmode', entrypath, mode)
+
+
+# Could try subclassing Tree for CheckList - would need another arg to init
+class CheckList(TixWidget):
+    """The CheckList widget
+    displays a list of items to be selected by the user. CheckList acts
+    similarly to the Tk checkbutton or radiobutton widgets, except it is
+    capable of handling many more items than checkbuttons or radiobuttons.
+    """
+    # FIXME: It should inherit -superclass tixTree
+    def __init__(self, master=None, cnf={}, **kw):
+        TixWidget.__init__(self, master, 'tixCheckList',
+                           ['options'], cnf, kw)
+        self.subwidget_list['hlist'] = _dummyHList(self, 'hlist')
+        self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
+        self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')
+
+    def autosetmode(self):
+        '''This command calls the setmode method for all the entries in this
+     Tree widget: if an entry has no child entries, its mode is set to
+     none. Otherwise, if the entry has any hidden child entries, its mode is
+     set to open; otherwise its mode is set to close.'''
+        self.tk.call(self._w, 'autosetmode')
+
+    def close(self, entrypath):
+        '''Close the entry given by entryPath if its mode is close.'''
+        self.tk.call(self._w, 'close', entrypath)
+
+    def getmode(self, entrypath):
+        '''Returns the current mode of the entry given by entryPath.'''
+        return self.tk.call(self._w, 'getmode', entrypath)
+
+    def open(self, entrypath):
+        '''Open the entry given by entryPath if its mode is open.'''
+        self.tk.call(self._w, 'open', entrypath)
+
+    def getselection(self, mode='on'):
+        '''Returns a list of items whose status matches status. If status is
+     not specified, the list of items in the "on" status will be returned.
+     Mode can be on, off, default'''
+        c = self.tk.split(self.tk.call(self._w, 'getselection', mode))
+        return self.tk.splitlist(c)
+
+    def getstatus(self, entrypath):
+        '''Returns the current status of entryPath.'''
+        return self.tk.call(self._w, 'getstatus', entrypath)
+
+    def setstatus(self, entrypath, mode='on'):
+        '''Sets the status of entryPath to be status. A bitmap will be
+     displayed next to the entry its status is on, off or default.'''
+        self.tk.call(self._w, 'setstatus', entrypath, mode)
+
+
+###########################################################################
+### The subclassing below is used to instantiate the subwidgets in each ###
+### mega widget. This allows us to access their methods directly.       ###
+###########################################################################
+
+class _dummyButton(Button, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+
+class _dummyCheckbutton(Checkbutton, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+
+class _dummyEntry(Entry, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+
+class _dummyFrame(Frame, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+
+class _dummyLabel(Label, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+
+class _dummyListbox(Listbox, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+
+class _dummyMenu(Menu, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+
+class _dummyMenubutton(Menubutton, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+
+class _dummyScrollbar(Scrollbar, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+
+class _dummyText(Text, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+
+class _dummyScrolledListBox(ScrolledListBox, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+        self.subwidget_list['listbox'] = _dummyListbox(self, 'listbox')
+        self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
+        self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')
+
+class _dummyHList(HList, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+
+class _dummyScrolledHList(ScrolledHList, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+        self.subwidget_list['hlist'] = _dummyHList(self, 'hlist')
+        self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
+        self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')
+
+class _dummyTList(TList, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+
+class _dummyComboBox(ComboBox, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, ['fancy',destroy_physically])
+        self.subwidget_list['label'] = _dummyLabel(self, 'label')
+        self.subwidget_list['entry'] = _dummyEntry(self, 'entry')
+        self.subwidget_list['arrow'] = _dummyButton(self, 'arrow')
+
+        self.subwidget_list['slistbox'] = _dummyScrolledListBox(self,
+                                                                'slistbox')
+        try:
+            self.subwidget_list['tick'] = _dummyButton(self, 'tick')
+            #cross Button : present if created with the fancy option
+            self.subwidget_list['cross'] = _dummyButton(self, 'cross')
+        except TypeError:
+            # unavailable when -fancy not specified
+            pass
+
+class _dummyDirList(DirList, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+        self.subwidget_list['hlist'] = _dummyHList(self, 'hlist')
+        self.subwidget_list['vsb'] = _dummyScrollbar(self, 'vsb')
+        self.subwidget_list['hsb'] = _dummyScrollbar(self, 'hsb')
+
+class _dummyDirSelectBox(DirSelectBox, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+        self.subwidget_list['dirlist'] = _dummyDirList(self, 'dirlist')
+        self.subwidget_list['dircbx'] = _dummyFileComboBox(self, 'dircbx')
+
+class _dummyExFileSelectBox(ExFileSelectBox, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+        self.subwidget_list['cancel'] = _dummyButton(self, 'cancel')
+        self.subwidget_list['ok'] = _dummyButton(self, 'ok')
+        self.subwidget_list['hidden'] = _dummyCheckbutton(self, 'hidden')
+        self.subwidget_list['types'] = _dummyComboBox(self, 'types')
+        self.subwidget_list['dir'] = _dummyComboBox(self, 'dir')
+        self.subwidget_list['dirlist'] = _dummyScrolledListBox(self, 'dirlist')
+        self.subwidget_list['file'] = _dummyComboBox(self, 'file')
+        self.subwidget_list['filelist'] = _dummyScrolledListBox(self, 'filelist')
+
+class _dummyFileSelectBox(FileSelectBox, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+        self.subwidget_list['dirlist'] = _dummyScrolledListBox(self, 'dirlist')
+        self.subwidget_list['filelist'] = _dummyScrolledListBox(self, 'filelist')
+        self.subwidget_list['filter'] = _dummyComboBox(self, 'filter')
+        self.subwidget_list['selection'] = _dummyComboBox(self, 'selection')
+
+class _dummyFileComboBox(ComboBox, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+        self.subwidget_list['dircbx'] = _dummyComboBox(self, 'dircbx')
+
+class _dummyStdButtonBox(StdButtonBox, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+        self.subwidget_list['ok'] = _dummyButton(self, 'ok')
+        self.subwidget_list['apply'] = _dummyButton(self, 'apply')
+        self.subwidget_list['cancel'] = _dummyButton(self, 'cancel')
+        self.subwidget_list['help'] = _dummyButton(self, 'help')
+
+class _dummyNoteBookFrame(NoteBookFrame, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=0):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+
+class _dummyPanedWindow(PanedWindow, TixSubWidget):
+    def __init__(self, master, name, destroy_physically=1):
+        TixSubWidget.__init__(self, master, name, destroy_physically)
+
+########################
+### Utility Routines ###
+########################
+
+#mike Should tixDestroy be exposed as a wrapper? - but not for widgets.
+
+def OptionName(widget):
+    '''Returns the qualified path name for the widget. Normally used to set
+    default options for subwidgets. See tixwidgets.py'''
+    return widget.tk.call('tixOptionName', widget._w)
+
+# Called with a dictionary argument of the form
+# {'*.c':'C source files', '*.txt':'Text Files', '*':'All files'}
+# returns a string which can be used to configure the fsbox file types
+# in an ExFileSelectBox. i.e.,
+# '{{*} {* - All files}} {{*.c} {*.c - C source files}} {{*.txt} {*.txt - Text Files}}'
+def FileTypeList(dict):
+    s = ''
+    for type in dict.keys():
+        s = s + '{{' + type + '} {' + type + ' - ' + dict[type] + '}} '
+    return s
+
+# Still to be done:
+# tixIconView
+class CObjView(TixWidget):
+    """This file implements the Canvas Object View widget. This is a base
+    class of IconView. It implements automatic placement/adjustment of the
+    scrollbars according to the canvas objects inside the canvas subwidget.
+    The scrollbars are adjusted so that the canvas is just large enough
+    to see all the objects.
+    """
+    # FIXME: It should inherit -superclass tixScrolledWidget
+    pass
+
+
+class Grid(TixWidget):
+    '''The Tix Grid command creates a new window  and makes it into a
+    tixGrid widget. Additional options, may be specified on the command
+    line or in the option database to configure aspects such as its cursor
+    and relief.
+
+    A Grid widget displays its contents in a two dimensional grid of cells.
+    Each cell may contain one Tix display item, which may be in text,
+    graphics or other formats. See the DisplayStyle class for more information
+    about Tix display items. Individual cells, or groups of cells, can be
+    formatted with a wide range of attributes, such as its color, relief and
+    border.
+
+    Subwidgets - None'''
+    # valid specific resources as of Tk 8.4
+    # editdonecmd, editnotifycmd, floatingcols, floatingrows, formatcmd,
+    # highlightbackground, highlightcolor, leftmargin, itemtype, selectmode,
+    # selectunit, topmargin,
+    def __init__(self, master=None, cnf={}, **kw):
+        static= []
+        self.cnf= cnf
+        TixWidget.__init__(self, master, 'tixGrid', static, cnf, kw)
+
+    # valid options as of Tk 8.4
+    # anchor, bdtype, cget, configure, delete, dragsite, dropsite, entrycget, edit
+    # entryconfigure, format, geometryinfo, info, index, move, nearest, selection
+    # set, size, unset, xview, yview
+    # def anchor option ?args ...?
+    def anchor_get(self):
+        "Get the (x,y) coordinate of the current anchor cell"
+        return self._getints(self.tk.call(self, 'anchor', 'get'))
+
+    # def bdtype
+    # def delete dim from ?to?
+    def delete_row(self, from_, to=None):
+        """Delete rows between from_ and to inclusive.
+        If to is not provided,  delete only row at from_"""
+        if to is None:
+            self.tk.call(self, 'delete', 'row', from_)
+        else:
+            self.tk.call(self, 'delete', 'row', from_, to)
+    def delete_column(self, from_, to=None):
+        """Delete columns between from_ and to inclusive.
+        If to is not provided,  delete only column at from_"""
+        if to is None:
+            self.tk.call(self, 'delete', 'column', from_)
+        else:
+            self.tk.call(self, 'delete', 'column', from_, to)
+    # def edit apply
+    # def edit set x y
+
+    def entrycget(self, x, y, option):
+        "Get the option value for cell at (x,y)"
+        return self.tk.call(self, 'entrycget', x, y, option)
+
+    def entryconfigure(self, x, y, **kw):
+        return self.tk.call(self, 'entryconfigure', x, y, *self._options(None, kw))
+    # def format
+    # def index
+
+    def info_exists(self, x, y):
+        "Return True if display item exists at (x,y)"
+        return bool(int(self.tk.call(self, 'info', 'exists', x, y)))
+
+    def info_bbox(self, x, y):
+        # This seems to always return '', at least for 'text' displayitems
+        return self.tk.call(self, 'info', 'bbox', x, y)
+
+    def nearest(self, x, y):
+        "Return coordinate of cell nearest pixel coordinate (x,y)"
+        return self._getints(self.tk.call(self, 'nearest', x, y))
+
+    # def selection adjust
+    # def selection clear
+    # def selection includes
+    # def selection set
+    # def selection toggle
+    # def move dim from to offset
+
+    def set(self, x, y, itemtype=None, **kw):
+        args= self._options(self.cnf, kw)
+        if itemtype is not None:
+            args= ('-itemtype', itemtype) + args
+        self.tk.call(self, 'set', x, y, *args)
+
+    # def size dim index ?option value ...?
+    # def unset x y
+
+    def xview(self):
+        return self._getdoubles(self.tk.call(self, 'xview'))
+    def xview_moveto(self, fraction):
+        self.tk.call(self,'xview', 'moveto', fraction)
+    def xview_scroll(self, count, what="units"):
+        "Scroll right (count>0) or left <count> of units|pages"
+        self.tk.call(self, 'xview', 'scroll', count, what)
+
+    def yview(self):
+        return self._getdoubles(self.tk.call(self, 'yview'))
+    def yview_moveto(self, fraction):
+        self.tk.call(self,'ysview', 'moveto', fraction)
+    def yview_scroll(self, count, what="units"):
+        "Scroll down (count>0) or up <count> of units|pages"
+        self.tk.call(self, 'yview', 'scroll', count, what)
+
+class ScrolledGrid(Grid):
+    '''Scrolled Grid widgets'''
+
+    # FIXME: It should inherit -superclass tixScrolledWidget
+    def __init__(self, master=None, cnf={}, **kw):
+        static= []
+        self.cnf= cnf
+        TixWidget.__init__(self, master, 'tixScrolledGrid', static, cnf, kw)
diff --git a/Lib/lib-tk/Tkconstants.py b/Lib/lib-tk/Tkconstants.py
new file mode 100644
index 0000000..63eee33
--- /dev/null
+++ b/Lib/lib-tk/Tkconstants.py
@@ -0,0 +1,110 @@
+# Symbolic constants for Tk
+
+# Booleans
+NO=FALSE=OFF=0
+YES=TRUE=ON=1
+
+# -anchor and -sticky
+N='n'
+S='s'
+W='w'
+E='e'
+NW='nw'
+SW='sw'
+NE='ne'
+SE='se'
+NS='ns'
+EW='ew'
+NSEW='nsew'
+CENTER='center'
+
+# -fill
+NONE='none'
+X='x'
+Y='y'
+BOTH='both'
+
+# -side
+LEFT='left'
+TOP='top'
+RIGHT='right'
+BOTTOM='bottom'
+
+# -relief
+RAISED='raised'
+SUNKEN='sunken'
+FLAT='flat'
+RIDGE='ridge'
+GROOVE='groove'
+SOLID = 'solid'
+
+# -orient
+HORIZONTAL='horizontal'
+VERTICAL='vertical'
+
+# -tabs
+NUMERIC='numeric'
+
+# -wrap
+CHAR='char'
+WORD='word'
+
+# -align
+BASELINE='baseline'
+
+# -bordermode
+INSIDE='inside'
+OUTSIDE='outside'
+
+# Special tags, marks and insert positions
+SEL='sel'
+SEL_FIRST='sel.first'
+SEL_LAST='sel.last'
+END='end'
+INSERT='insert'
+CURRENT='current'
+ANCHOR='anchor'
+ALL='all' # e.g. Canvas.delete(ALL)
+
+# Text widget and button states
+NORMAL='normal'
+DISABLED='disabled'
+ACTIVE='active'
+# Canvas state
+HIDDEN='hidden'
+
+# Menu item types
+CASCADE='cascade'
+CHECKBUTTON='checkbutton'
+COMMAND='command'
+RADIOBUTTON='radiobutton'
+SEPARATOR='separator'
+
+# Selection modes for list boxes
+SINGLE='single'
+BROWSE='browse'
+MULTIPLE='multiple'
+EXTENDED='extended'
+
+# Activestyle for list boxes
+# NONE='none' is also valid
+DOTBOX='dotbox'
+UNDERLINE='underline'
+
+# Various canvas styles
+PIESLICE='pieslice'
+CHORD='chord'
+ARC='arc'
+FIRST='first'
+LAST='last'
+BUTT='butt'
+PROJECTING='projecting'
+ROUND='round'
+BEVEL='bevel'
+MITER='miter'
+
+# Arguments to xview/yview
+MOVETO='moveto'
+SCROLL='scroll'
+UNITS='units'
+PAGES='pages'
diff --git a/Lib/lib-tk/Tkdnd.py b/Lib/lib-tk/Tkdnd.py
new file mode 100644
index 0000000..55f0776
--- /dev/null
+++ b/Lib/lib-tk/Tkdnd.py
@@ -0,0 +1,321 @@
+"""Drag-and-drop support for Tkinter.
+
+This is very preliminary.  I currently only support dnd *within* one
+application, between different windows (or within the same window).
+
+I an trying to make this as generic as possible -- not dependent on
+the use of a particular widget or icon type, etc.  I also hope that
+this will work with Pmw.
+
+To enable an object to be dragged, you must create an event binding
+for it that starts the drag-and-drop process. Typically, you should
+bind <ButtonPress> to a callback function that you write. The function
+should call Tkdnd.dnd_start(source, event), where 'source' is the
+object to be dragged, and 'event' is the event that invoked the call
+(the argument to your callback function).  Even though this is a class
+instantiation, the returned instance should not be stored -- it will
+be kept alive automatically for the duration of the drag-and-drop.
+
+When a drag-and-drop is already in process for the Tk interpreter, the
+call is *ignored*; this normally averts starting multiple simultaneous
+dnd processes, e.g. because different button callbacks all
+dnd_start().
+
+The object is *not* necessarily a widget -- it can be any
+application-specific object that is meaningful to potential
+drag-and-drop targets.
+
+Potential drag-and-drop targets are discovered as follows.  Whenever
+the mouse moves, and at the start and end of a drag-and-drop move, the
+Tk widget directly under the mouse is inspected.  This is the target
+widget (not to be confused with the target object, yet to be
+determined).  If there is no target widget, there is no dnd target
+object.  If there is a target widget, and it has an attribute
+dnd_accept, this should be a function (or any callable object).  The
+function is called as dnd_accept(source, event), where 'source' is the
+object being dragged (the object passed to dnd_start() above), and
+'event' is the most recent event object (generally a <Motion> event;
+it can also be <ButtonPress> or <ButtonRelease>).  If the dnd_accept()
+function returns something other than None, this is the new dnd target
+object.  If dnd_accept() returns None, or if the target widget has no
+dnd_accept attribute, the target widget's parent is considered as the
+target widget, and the search for a target object is repeated from
+there.  If necessary, the search is repeated all the way up to the
+root widget.  If none of the target widgets can produce a target
+object, there is no target object (the target object is None).
+
+The target object thus produced, if any, is called the new target
+object.  It is compared with the old target object (or None, if there
+was no old target widget).  There are several cases ('source' is the
+source object, and 'event' is the most recent event object):
+
+- Both the old and new target objects are None.  Nothing happens.
+
+- The old and new target objects are the same object.  Its method
+dnd_motion(source, event) is called.
+
+- The old target object was None, and the new target object is not
+None.  The new target object's method dnd_enter(source, event) is
+called.
+
+- The new target object is None, and the old target object is not
+None.  The old target object's method dnd_leave(source, event) is
+called.
+
+- The old and new target objects differ and neither is None.  The old
+target object's method dnd_leave(source, event), and then the new
+target object's method dnd_enter(source, event) is called.
+
+Once this is done, the new target object replaces the old one, and the
+Tk mainloop proceeds.  The return value of the methods mentioned above
+is ignored; if they raise an exception, the normal exception handling
+mechanisms take over.
+
+The drag-and-drop processes can end in two ways: a final target object
+is selected, or no final target object is selected.  When a final
+target object is selected, it will always have been notified of the
+potential drop by a call to its dnd_enter() method, as described
+above, and possibly one or more calls to its dnd_motion() method; its
+dnd_leave() method has not been called since the last call to
+dnd_enter().  The target is notified of the drop by a call to its
+method dnd_commit(source, event).
+
+If no final target object is selected, and there was an old target
+object, its dnd_leave(source, event) method is called to complete the
+dnd sequence.
+
+Finally, the source object is notified that the drag-and-drop process
+is over, by a call to source.dnd_end(target, event), specifying either
+the selected target object, or None if no target object was selected.
+The source object can use this to implement the commit action; this is
+sometimes simpler than to do it in the target's dnd_commit().  The
+target's dnd_commit() method could then simply be aliased to
+dnd_leave().
+
+At any time during a dnd sequence, the application can cancel the
+sequence by calling the cancel() method on the object returned by
+dnd_start().  This will call dnd_leave() if a target is currently
+active; it will never call dnd_commit().
+
+"""
+
+
+import tkinter
+
+
+# The factory function
+
+def dnd_start(source, event):
+    h = DndHandler(source, event)
+    if h.root:
+        return h
+    else:
+        return None
+
+
+# The class that does the work
+
+class DndHandler:
+
+    root = None
+
+    def __init__(self, source, event):
+        if event.num > 5:
+            return
+        root = event.widget._root()
+        try:
+            root.__dnd
+            return # Don't start recursive dnd
+        except AttributeError:
+            root.__dnd = self
+            self.root = root
+        self.source = source
+        self.target = None
+        self.initial_button = button = event.num
+        self.initial_widget = widget = event.widget
+        self.release_pattern = "<B%d-ButtonRelease-%d>" % (button, button)
+        self.save_cursor = widget['cursor'] or ""
+        widget.bind(self.release_pattern, self.on_release)
+        widget.bind("<Motion>", self.on_motion)
+        widget['cursor'] = "hand2"
+
+    def __del__(self):
+        root = self.root
+        self.root = None
+        if root:
+            try:
+                del root.__dnd
+            except AttributeError:
+                pass
+
+    def on_motion(self, event):
+        x, y = event.x_root, event.y_root
+        target_widget = self.initial_widget.winfo_containing(x, y)
+        source = self.source
+        new_target = None
+        while target_widget:
+            try:
+                attr = target_widget.dnd_accept
+            except AttributeError:
+                pass
+            else:
+                new_target = attr(source, event)
+                if new_target:
+                    break
+            target_widget = target_widget.master
+        old_target = self.target
+        if old_target is new_target:
+            if old_target:
+                old_target.dnd_motion(source, event)
+        else:
+            if old_target:
+                self.target = None
+                old_target.dnd_leave(source, event)
+            if new_target:
+                new_target.dnd_enter(source, event)
+                self.target = new_target
+
+    def on_release(self, event):
+        self.finish(event, 1)
+
+    def cancel(self, event=None):
+        self.finish(event, 0)
+
+    def finish(self, event, commit=0):
+        target = self.target
+        source = self.source
+        widget = self.initial_widget
+        root = self.root
+        try:
+            del root.__dnd
+            self.initial_widget.unbind(self.release_pattern)
+            self.initial_widget.unbind("<Motion>")
+            widget['cursor'] = self.save_cursor
+            self.target = self.source = self.initial_widget = self.root = None
+            if target:
+                if commit:
+                    target.dnd_commit(source, event)
+                else:
+                    target.dnd_leave(source, event)
+        finally:
+            source.dnd_end(target, event)
+
+
+
+# ----------------------------------------------------------------------
+# The rest is here for testing and demonstration purposes only!
+
+class Icon:
+
+    def __init__(self, name):
+        self.name = name
+        self.canvas = self.label = self.id = None
+
+    def attach(self, canvas, x=10, y=10):
+        if canvas is self.canvas:
+            self.canvas.coords(self.id, x, y)
+            return
+        if self.canvas:
+            self.detach()
+        if not canvas:
+            return
+        label = tkinter.Label(canvas, text=self.name,
+                              borderwidth=2, relief="raised")
+        id = canvas.create_window(x, y, window=label, anchor="nw")
+        self.canvas = canvas
+        self.label = label
+        self.id = id
+        label.bind("<ButtonPress>", self.press)
+
+    def detach(self):
+        canvas = self.canvas
+        if not canvas:
+            return
+        id = self.id
+        label = self.label
+        self.canvas = self.label = self.id = None
+        canvas.delete(id)
+        label.destroy()
+
+    def press(self, event):
+        if dnd_start(self, event):
+            # where the pointer is relative to the label widget:
+            self.x_off = event.x
+            self.y_off = event.y
+            # where the widget is relative to the canvas:
+            self.x_orig, self.y_orig = self.canvas.coords(self.id)
+
+    def move(self, event):
+        x, y = self.where(self.canvas, event)
+        self.canvas.coords(self.id, x, y)
+
+    def putback(self):
+        self.canvas.coords(self.id, self.x_orig, self.y_orig)
+
+    def where(self, canvas, event):
+        # where the corner of the canvas is relative to the screen:
+        x_org = canvas.winfo_rootx()
+        y_org = canvas.winfo_rooty()
+        # where the pointer is relative to the canvas widget:
+        x = event.x_root - x_org
+        y = event.y_root - y_org
+        # compensate for initial pointer offset
+        return x - self.x_off, y - self.y_off
+
+    def dnd_end(self, target, event):
+        pass
+
+class Tester:
+
+    def __init__(self, root):
+        self.top = tkinter.Toplevel(root)
+        self.canvas = tkinter.Canvas(self.top, width=100, height=100)
+        self.canvas.pack(fill="both", expand=1)
+        self.canvas.dnd_accept = self.dnd_accept
+
+    def dnd_accept(self, source, event):
+        return self
+
+    def dnd_enter(self, source, event):
+        self.canvas.focus_set() # Show highlight border
+        x, y = source.where(self.canvas, event)
+        x1, y1, x2, y2 = source.canvas.bbox(source.id)
+        dx, dy = x2-x1, y2-y1
+        self.dndid = self.canvas.create_rectangle(x, y, x+dx, y+dy)
+        self.dnd_motion(source, event)
+
+    def dnd_motion(self, source, event):
+        x, y = source.where(self.canvas, event)
+        x1, y1, x2, y2 = self.canvas.bbox(self.dndid)
+        self.canvas.move(self.dndid, x-x1, y-y1)
+
+    def dnd_leave(self, source, event):
+        self.top.focus_set() # Hide highlight border
+        self.canvas.delete(self.dndid)
+        self.dndid = None
+
+    def dnd_commit(self, source, event):
+        self.dnd_leave(source, event)
+        x, y = source.where(self.canvas, event)
+        source.attach(self.canvas, x, y)
+
+def test():
+    root = tkinter.Tk()
+    root.geometry("+1+1")
+    tkinter.Button(command=root.quit, text="Quit").pack()
+    t1 = Tester(root)
+    t1.top.geometry("+1+60")
+    t2 = Tester(root)
+    t2.top.geometry("+120+60")
+    t3 = Tester(root)
+    t3.top.geometry("+240+60")
+    i1 = Icon("ICON1")
+    i2 = Icon("ICON2")
+    i3 = Icon("ICON3")
+    i1.attach(t1.canvas)
+    i2.attach(t2.canvas)
+    i3.attach(t3.canvas)
+    root.mainloop()
+
+if __name__ == '__main__':
+    test()
diff --git a/Lib/lib-tk/Tkinter.py b/Lib/lib-tk/Tkinter.py
new file mode 100644
index 0000000..d83b2ba
--- /dev/null
+++ b/Lib/lib-tk/Tkinter.py
@@ -0,0 +1,3757 @@
+"""Wrapper functions for Tcl/Tk.
+
+Tkinter provides classes which allow the display, positioning and
+control of widgets. Toplevel widgets are Tk and Toplevel. Other
+widgets are Frame, Label, Entry, Text, Canvas, Button, Radiobutton,
+Checkbutton, Scale, Listbox, Scrollbar, OptionMenu, Spinbox
+LabelFrame and PanedWindow.
+
+Properties of the widgets are specified with keyword arguments.
+Keyword arguments have the same name as the corresponding resource
+under Tk.
+
+Widgets are positioned with one of the geometry managers Place, Pack
+or Grid. These managers can be called with methods place, pack, grid
+available in every Widget.
+
+Actions are bound to events by resources (e.g. keyword argument
+command) or with the method bind.
+
+Example (Hello, World):
+import tkinter
+from tkinter.constants import *
+tk = tkinter.Tk()
+frame = tkinter.Frame(tk, relief=RIDGE, borderwidth=2)
+frame.pack(fill=BOTH,expand=1)
+label = tkinter.Label(frame, text="Hello, World")
+label.pack(fill=X, expand=1)
+button = tkinter.Button(frame,text="Exit",command=tk.destroy)
+button.pack(side=BOTTOM)
+tk.mainloop()
+"""
+
+__version__ = "$Revision$"
+
+import sys
+if sys.platform == "win32":
+    # Attempt to configure Tcl/Tk without requiring PATH
+    from tkinter import _fix
+import _tkinter # If this fails your Python may not be configured for Tk
+TclError = _tkinter.TclError
+from types import *
+from tkinter.constants import *
+try:
+    import MacOS; _MacOS = MacOS; del MacOS
+except ImportError:
+    _MacOS = None
+
+wantobjects = 1
+
+TkVersion = float(_tkinter.TK_VERSION)
+TclVersion = float(_tkinter.TCL_VERSION)
+
+READABLE = _tkinter.READABLE
+WRITABLE = _tkinter.WRITABLE
+EXCEPTION = _tkinter.EXCEPTION
+
+# These are not always defined, e.g. not on Win32 with Tk 8.0 :-(
+try: _tkinter.createfilehandler
+except AttributeError: _tkinter.createfilehandler = None
+try: _tkinter.deletefilehandler
+except AttributeError: _tkinter.deletefilehandler = None
+
+
+def _flatten(tuple):
+    """Internal function."""
+    res = ()
+    for item in tuple:
+        if type(item) in (TupleType, ListType):
+            res = res + _flatten(item)
+        elif item is not None:
+            res = res + (item,)
+    return res
+
+try: _flatten = _tkinter._flatten
+except AttributeError: pass
+
+def _cnfmerge(cnfs):
+    """Internal function."""
+    if type(cnfs) is DictionaryType:
+        return cnfs
+    elif type(cnfs) in (NoneType, StringType):
+        return cnfs
+    else:
+        cnf = {}
+        for c in _flatten(cnfs):
+            try:
+                cnf.update(c)
+            except (AttributeError, TypeError), msg:
+                print "_cnfmerge: fallback due to:", msg
+                for k, v in c.items():
+                    cnf[k] = v
+        return cnf
+
+try: _cnfmerge = _tkinter._cnfmerge
+except AttributeError: pass
+
+class Event:
+    """Container for the properties of an event.
+
+    Instances of this type are generated if one of the following events occurs:
+
+    KeyPress, KeyRelease - for keyboard events
+    ButtonPress, ButtonRelease, Motion, Enter, Leave, MouseWheel - for mouse events
+    Visibility, Unmap, Map, Expose, FocusIn, FocusOut, Circulate,
+    Colormap, Gravity, Reparent, Property, Destroy, Activate,
+    Deactivate - for window events.
+
+    If a callback function for one of these events is registered
+    using bind, bind_all, bind_class, or tag_bind, the callback is
+    called with an Event as first argument. It will have the
+    following attributes (in braces are the event types for which
+    the attribute is valid):
+
+        serial - serial number of event
+    num - mouse button pressed (ButtonPress, ButtonRelease)
+    focus - whether the window has the focus (Enter, Leave)
+    height - height of the exposed window (Configure, Expose)
+    width - width of the exposed window (Configure, Expose)
+    keycode - keycode of the pressed key (KeyPress, KeyRelease)
+    state - state of the event as a number (ButtonPress, ButtonRelease,
+                            Enter, KeyPress, KeyRelease,
+                            Leave, Motion)
+    state - state as a string (Visibility)
+    time - when the event occurred
+    x - x-position of the mouse
+    y - y-position of the mouse
+    x_root - x-position of the mouse on the screen
+             (ButtonPress, ButtonRelease, KeyPress, KeyRelease, Motion)
+    y_root - y-position of the mouse on the screen
+             (ButtonPress, ButtonRelease, KeyPress, KeyRelease, Motion)
+    char - pressed character (KeyPress, KeyRelease)
+    send_event - see X/Windows documentation
+    keysym - keysym of the event as a string (KeyPress, KeyRelease)
+    keysym_num - keysym of the event as a number (KeyPress, KeyRelease)
+    type - type of the event as a number
+    widget - widget in which the event occurred
+    delta - delta of wheel movement (MouseWheel)
+    """
+    pass
+
+_support_default_root = 1
+_default_root = None
+
+def NoDefaultRoot():
+    """Inhibit setting of default root window.
+
+    Call this function to inhibit that the first instance of
+    Tk is used for windows without an explicit parent window.
+    """
+    global _support_default_root
+    _support_default_root = 0
+    global _default_root
+    _default_root = None
+    del _default_root
+
+def _tkerror(err):
+    """Internal function."""
+    pass
+
+def _exit(code='0'):
+    """Internal function. Calling it will throw the exception SystemExit."""
+    raise SystemExit, code
+
+_varnum = 0
+class Variable:
+    """Class to define value holders for e.g. buttons.
+
+    Subclasses StringVar, IntVar, DoubleVar, BooleanVar are specializations
+    that constrain the type of the value returned from get()."""
+    _default = ""
+    def __init__(self, master=None, value=None, name=None):
+        """Construct a variable
+
+        MASTER can be given as master widget.
+        VALUE is an optional value (defaults to "")
+        NAME is an optional Tcl name (defaults to PY_VARnum).
+
+        If NAME matches an existing variable and VALUE is omitted
+        then the existing value is retained.
+        """
+        global _varnum
+        if not master:
+            master = _default_root
+        self._master = master
+        self._tk = master.tk
+        if name:
+            self._name = name
+        else:
+            self._name = 'PY_VAR' + repr(_varnum)
+            _varnum += 1
+        if value is not None:
+            self.set(value)
+        elif not self._tk.call("info", "exists", self._name):
+            self.set(self._default)
+    def __del__(self):
+        """Unset the variable in Tcl."""
+        self._tk.globalunsetvar(self._name)
+    def __str__(self):
+        """Return the name of the variable in Tcl."""
+        return self._name
+    def set(self, value):
+        """Set the variable to VALUE."""
+        return self._tk.globalsetvar(self._name, value)
+    def get(self):
+        """Return value of variable."""
+        return self._tk.globalgetvar(self._name)
+    def trace_variable(self, mode, callback):
+        """Define a trace callback for the variable.
+
+        MODE is one of "r", "w", "u" for read, write, undefine.
+        CALLBACK must be a function which is called when
+        the variable is read, written or undefined.
+
+        Return the name of the callback.
+        """
+        cbname = self._master._register(callback)
+        self._tk.call("trace", "variable", self._name, mode, cbname)
+        return cbname
+    trace = trace_variable
+    def trace_vdelete(self, mode, cbname):
+        """Delete the trace callback for a variable.
+
+        MODE is one of "r", "w", "u" for read, write, undefine.
+        CBNAME is the name of the callback returned from trace_variable or trace.
+        """
+        self._tk.call("trace", "vdelete", self._name, mode, cbname)
+        self._master.deletecommand(cbname)
+    def trace_vinfo(self):
+        """Return all trace callback information."""
+        return map(self._tk.split, self._tk.splitlist(
+            self._tk.call("trace", "vinfo", self._name)))
+    def __eq__(self, other):
+        """Comparison for equality (==).
+
+        Note: if the Variable's master matters to behavior
+        also compare self._master == other._master
+        """
+        return self.__class__.__name__ == other.__class__.__name__ \
+            and self._name == other._name
+
+class StringVar(Variable):
+    """Value holder for strings variables."""
+    _default = ""
+    def __init__(self, master=None, value=None, name=None):
+        """Construct a string variable.
+
+        MASTER can be given as master widget.
+        VALUE is an optional value (defaults to "")
+        NAME is an optional Tcl name (defaults to PY_VARnum).
+
+        If NAME matches an existing variable and VALUE is omitted
+        then the existing value is retained.
+        """
+        Variable.__init__(self, master, value, name)
+
+    def get(self):
+        """Return value of variable as string."""
+        value = self._tk.globalgetvar(self._name)
+        if isinstance(value, basestring):
+            return value
+        return str(value)
+
+class IntVar(Variable):
+    """Value holder for integer variables."""
+    _default = 0
+    def __init__(self, master=None, value=None, name=None):
+        """Construct an integer variable.
+
+        MASTER can be given as master widget.
+        VALUE is an optional value (defaults to 0)
+        NAME is an optional Tcl name (defaults to PY_VARnum).
+
+        If NAME matches an existing variable and VALUE is omitted
+        then the existing value is retained.
+        """
+        Variable.__init__(self, master, value, name)
+
+    def set(self, value):
+        """Set the variable to value, converting booleans to integers."""
+        if isinstance(value, bool):
+            value = int(value)
+        return Variable.set(self, value)
+
+    def get(self):
+        """Return the value of the variable as an integer."""
+        return getint(self._tk.globalgetvar(self._name))
+
+class DoubleVar(Variable):
+    """Value holder for float variables."""
+    _default = 0.0
+    def __init__(self, master=None, value=None, name=None):
+        """Construct a float variable.
+
+        MASTER can be given as master widget.
+        VALUE is an optional value (defaults to 0.0)
+        NAME is an optional Tcl name (defaults to PY_VARnum).
+
+        If NAME matches an existing variable and VALUE is omitted
+        then the existing value is retained.
+        """
+        Variable.__init__(self, master, value, name)
+
+    def get(self):
+        """Return the value of the variable as a float."""
+        return getdouble(self._tk.globalgetvar(self._name))
+
+class BooleanVar(Variable):
+    """Value holder for boolean variables."""
+    _default = False
+    def __init__(self, master=None, value=None, name=None):
+        """Construct a boolean variable.
+
+        MASTER can be given as master widget.
+        VALUE is an optional value (defaults to False)
+        NAME is an optional Tcl name (defaults to PY_VARnum).
+
+        If NAME matches an existing variable and VALUE is omitted
+        then the existing value is retained.
+        """
+        Variable.__init__(self, master, value, name)
+
+    def get(self):
+        """Return the value of the variable as a bool."""
+        return self._tk.getboolean(self._tk.globalgetvar(self._name))
+
+def mainloop(n=0):
+    """Run the main loop of Tcl."""
+    _default_root.tk.mainloop(n)
+
+getint = int
+
+getdouble = float
+
+def getboolean(s):
+    """Convert true and false to integer values 1 and 0."""
+    return _default_root.tk.getboolean(s)
+
+# Methods defined on both toplevel and interior widgets
+class Misc:
+    """Internal class.
+
+    Base class which defines methods common for interior widgets."""
+
+    # XXX font command?
+    _tclCommands = None
+    def destroy(self):
+        """Internal function.
+
+        Delete all Tcl commands created for
+        this widget in the Tcl interpreter."""
+        if self._tclCommands is not None:
+            for name in self._tclCommands:
+                #print '- Tkinter: deleted command', name
+                self.tk.deletecommand(name)
+            self._tclCommands = None
+    def deletecommand(self, name):
+        """Internal function.
+
+        Delete the Tcl command provided in NAME."""
+        #print '- Tkinter: deleted command', name
+        self.tk.deletecommand(name)
+        try:
+            self._tclCommands.remove(name)
+        except ValueError:
+            pass
+    def tk_strictMotif(self, boolean=None):
+        """Set Tcl internal variable, whether the look and feel
+        should adhere to Motif.
+
+        A parameter of 1 means adhere to Motif (e.g. no color
+        change if mouse passes over slider).
+        Returns the set value."""
+        return self.tk.getboolean(self.tk.call(
+            'set', 'tk_strictMotif', boolean))
+    def tk_bisque(self):
+        """Change the color scheme to light brown as used in Tk 3.6 and before."""
+        self.tk.call('tk_bisque')
+    def tk_setPalette(self, *args, **kw):
+        """Set a new color scheme for all widget elements.
+
+        A single color as argument will cause that all colors of Tk
+        widget elements are derived from this.
+        Alternatively several keyword parameters and its associated
+        colors can be given. The following keywords are valid:
+        activeBackground, foreground, selectColor,
+        activeForeground, highlightBackground, selectBackground,
+        background, highlightColor, selectForeground,
+        disabledForeground, insertBackground, troughColor."""
+        self.tk.call(('tk_setPalette',)
+              + _flatten(args) + _flatten(kw.items()))
+    def tk_menuBar(self, *args):
+        """Do not use. Needed in Tk 3.6 and earlier."""
+        pass # obsolete since Tk 4.0
+    def wait_variable(self, name='PY_VAR'):
+        """Wait until the variable is modified.
+
+        A parameter of type IntVar, StringVar, DoubleVar or
+        BooleanVar must be given."""
+        self.tk.call('tkwait', 'variable', name)
+    waitvar = wait_variable # XXX b/w compat
+    def wait_window(self, window=None):
+        """Wait until a WIDGET is destroyed.
+
+        If no parameter is given self is used."""
+        if window is None:
+            window = self
+        self.tk.call('tkwait', 'window', window._w)
+    def wait_visibility(self, window=None):
+        """Wait until the visibility of a WIDGET changes
+        (e.g. it appears).
+
+        If no parameter is given self is used."""
+        if window is None:
+            window = self
+        self.tk.call('tkwait', 'visibility', window._w)
+    def setvar(self, name='PY_VAR', value='1'):
+        """Set Tcl variable NAME to VALUE."""
+        self.tk.setvar(name, value)
+    def getvar(self, name='PY_VAR'):
+        """Return value of Tcl variable NAME."""
+        return self.tk.getvar(name)
+    getint = int
+    getdouble = float
+    def getboolean(self, s):
+        """Return a boolean value for Tcl boolean values true and false given as parameter."""
+        return self.tk.getboolean(s)
+    def focus_set(self):
+        """Direct input focus to this widget.
+
+        If the application currently does not have the focus
+        this widget will get the focus if the application gets
+        the focus through the window manager."""
+        self.tk.call('focus', self._w)
+    focus = focus_set # XXX b/w compat?
+    def focus_force(self):
+        """Direct input focus to this widget even if the
+        application does not have the focus. Use with
+        caution!"""
+        self.tk.call('focus', '-force', self._w)
+    def focus_get(self):
+        """Return the widget which has currently the focus in the
+        application.
+
+        Use focus_displayof to allow working with several
+        displays. Return None if application does not have
+        the focus."""
+        name = self.tk.call('focus')
+        if name == 'none' or not name: return None
+        return self._nametowidget(name)
+    def focus_displayof(self):
+        """Return the widget which has currently the focus on the
+        display where this widget is located.
+
+        Return None if the application does not have the focus."""
+        name = self.tk.call('focus', '-displayof', self._w)
+        if name == 'none' or not name: return None
+        return self._nametowidget(name)
+    def focus_lastfor(self):
+        """Return the widget which would have the focus if top level
+        for this widget gets the focus from the window manager."""
+        name = self.tk.call('focus', '-lastfor', self._w)
+        if name == 'none' or not name: return None
+        return self._nametowidget(name)
+    def tk_focusFollowsMouse(self):
+        """The widget under mouse will get automatically focus. Can not
+        be disabled easily."""
+        self.tk.call('tk_focusFollowsMouse')
+    def tk_focusNext(self):
+        """Return the next widget in the focus order which follows
+        widget which has currently the focus.
+
+        The focus order first goes to the next child, then to
+        the children of the child recursively and then to the
+        next sibling which is higher in the stacking order.  A
+        widget is omitted if it has the takefocus resource set
+        to 0."""
+        name = self.tk.call('tk_focusNext', self._w)
+        if not name: return None
+        return self._nametowidget(name)
+    def tk_focusPrev(self):
+        """Return previous widget in the focus order. See tk_focusNext for details."""
+        name = self.tk.call('tk_focusPrev', self._w)
+        if not name: return None
+        return self._nametowidget(name)
+    def after(self, ms, func=None, *args):
+        """Call function once after given time.
+
+        MS specifies the time in milliseconds. FUNC gives the
+        function which shall be called. Additional parameters
+        are given as parameters to the function call.  Return
+        identifier to cancel scheduling with after_cancel."""
+        if not func:
+            # I'd rather use time.sleep(ms*0.001)
+            self.tk.call('after', ms)
+        else:
+            def callit():
+                try:
+                    func(*args)
+                finally:
+                    try:
+                        self.deletecommand(name)
+                    except TclError:
+                        pass
+            name = self._register(callit)
+            return self.tk.call('after', ms, name)
+    def after_idle(self, func, *args):
+        """Call FUNC once if the Tcl main loop has no event to
+        process.
+
+        Return an identifier to cancel the scheduling with
+        after_cancel."""
+        return self.after('idle', func, *args)
+    def after_cancel(self, id):
+        """Cancel scheduling of function identified with ID.
+
+        Identifier returned by after or after_idle must be
+        given as first parameter."""
+        try:
+            data = self.tk.call('after', 'info', id)
+            # In Tk 8.3, splitlist returns: (script, type)
+            # In Tk 8.4, splitlist may return (script, type) or (script,)
+            script = self.tk.splitlist(data)[0]
+            self.deletecommand(script)
+        except TclError:
+            pass
+        self.tk.call('after', 'cancel', id)
+    def bell(self, displayof=0):
+        """Ring a display's bell."""
+        self.tk.call(('bell',) + self._displayof(displayof))
+
+    # Clipboard handling:
+    def clipboard_get(self, **kw):
+        """Retrieve data from the clipboard on window's display.
+
+        The window keyword defaults to the root window of the Tkinter
+        application.
+
+        The type keyword specifies the form in which the data is
+        to be returned and should be an atom name such as STRING
+        or FILE_NAME.  Type defaults to STRING.
+
+        This command is equivalent to:
+
+        selection_get(CLIPBOARD)
+        """
+        return self.tk.call(('clipboard', 'get') + self._options(kw))
+
+    def clipboard_clear(self, **kw):
+        """Clear the data in the Tk clipboard.
+
+        A widget specified for the optional displayof keyword
+        argument specifies the target display."""
+        if not kw.has_key('displayof'): kw['displayof'] = self._w
+        self.tk.call(('clipboard', 'clear') + self._options(kw))
+    def clipboard_append(self, string, **kw):
+        """Append STRING to the Tk clipboard.
+
+        A widget specified at the optional displayof keyword
+        argument specifies the target display. The clipboard
+        can be retrieved with selection_get."""
+        if not kw.has_key('displayof'): kw['displayof'] = self._w
+        self.tk.call(('clipboard', 'append') + self._options(kw)
+              + ('--', string))
+    # XXX grab current w/o window argument
+    def grab_current(self):
+        """Return widget which has currently the grab in this application
+        or None."""
+        name = self.tk.call('grab', 'current', self._w)
+        if not name: return None
+        return self._nametowidget(name)
+    def grab_release(self):
+        """Release grab for this widget if currently set."""
+        self.tk.call('grab', 'release', self._w)
+    def grab_set(self):
+        """Set grab for this widget.
+
+        A grab directs all events to this and descendant
+        widgets in the application."""
+        self.tk.call('grab', 'set', self._w)
+    def grab_set_global(self):
+        """Set global grab for this widget.
+
+        A global grab directs all events to this and
+        descendant widgets on the display. Use with caution -
+        other applications do not get events anymore."""
+        self.tk.call('grab', 'set', '-global', self._w)
+    def grab_status(self):
+        """Return None, "local" or "global" if this widget has
+        no, a local or a global grab."""
+        status = self.tk.call('grab', 'status', self._w)
+        if status == 'none': status = None
+        return status
+    def option_add(self, pattern, value, priority = None):
+        """Set a VALUE (second parameter) for an option
+        PATTERN (first parameter).
+
+        An optional third parameter gives the numeric priority
+        (defaults to 80)."""
+        self.tk.call('option', 'add', pattern, value, priority)
+    def option_clear(self):
+        """Clear the option database.
+
+        It will be reloaded if option_add is called."""
+        self.tk.call('option', 'clear')
+    def option_get(self, name, className):
+        """Return the value for an option NAME for this widget
+        with CLASSNAME.
+
+        Values with higher priority override lower values."""
+        return self.tk.call('option', 'get', self._w, name, className)
+    def option_readfile(self, fileName, priority = None):
+        """Read file FILENAME into the option database.
+
+        An optional second parameter gives the numeric
+        priority."""
+        self.tk.call('option', 'readfile', fileName, priority)
+    def selection_clear(self, **kw):
+        """Clear the current X selection."""
+        if not kw.has_key('displayof'): kw['displayof'] = self._w
+        self.tk.call(('selection', 'clear') + self._options(kw))
+    def selection_get(self, **kw):
+        """Return the contents of the current X selection.
+
+        A keyword parameter selection specifies the name of
+        the selection and defaults to PRIMARY.  A keyword
+        parameter displayof specifies a widget on the display
+        to use."""
+        if not kw.has_key('displayof'): kw['displayof'] = self._w
+        return self.tk.call(('selection', 'get') + self._options(kw))
+    def selection_handle(self, command, **kw):
+        """Specify a function COMMAND to call if the X
+        selection owned by this widget is queried by another
+        application.
+
+        This function must return the contents of the
+        selection. The function will be called with the
+        arguments OFFSET and LENGTH which allows the chunking
+        of very long selections. The following keyword
+        parameters can be provided:
+        selection - name of the selection (default PRIMARY),
+        type - type of the selection (e.g. STRING, FILE_NAME)."""
+        name = self._register(command)
+        self.tk.call(('selection', 'handle') + self._options(kw)
+              + (self._w, name))
+    def selection_own(self, **kw):
+        """Become owner of X selection.
+
+        A keyword parameter selection specifies the name of
+        the selection (default PRIMARY)."""
+        self.tk.call(('selection', 'own') +
+                 self._options(kw) + (self._w,))
+    def selection_own_get(self, **kw):
+        """Return owner of X selection.
+
+        The following keyword parameter can
+        be provided:
+        selection - name of the selection (default PRIMARY),
+        type - type of the selection (e.g. STRING, FILE_NAME)."""
+        if not kw.has_key('displayof'): kw['displayof'] = self._w
+        name = self.tk.call(('selection', 'own') + self._options(kw))
+        if not name: return None
+        return self._nametowidget(name)
+    def send(self, interp, cmd, *args):
+        """Send Tcl command CMD to different interpreter INTERP to be executed."""
+        return self.tk.call(('send', interp, cmd) + args)
+    def lower(self, belowThis=None):
+        """Lower this widget in the stacking order."""
+        self.tk.call('lower', self._w, belowThis)
+    def tkraise(self, aboveThis=None):
+        """Raise this widget in the stacking order."""
+        self.tk.call('raise', self._w, aboveThis)
+    lift = tkraise
+    def colormodel(self, value=None):
+        """Useless. Not implemented in Tk."""
+        return self.tk.call('tk', 'colormodel', self._w, value)
+    def winfo_atom(self, name, displayof=0):
+        """Return integer which represents atom NAME."""
+        args = ('winfo', 'atom') + self._displayof(displayof) + (name,)
+        return getint(self.tk.call(args))
+    def winfo_atomname(self, id, displayof=0):
+        """Return name of atom with identifier ID."""
+        args = ('winfo', 'atomname') \
+               + self._displayof(displayof) + (id,)
+        return self.tk.call(args)
+    def winfo_cells(self):
+        """Return number of cells in the colormap for this widget."""
+        return getint(
+            self.tk.call('winfo', 'cells', self._w))
+    def winfo_children(self):
+        """Return a list of all widgets which are children of this widget."""
+        result = []
+        for child in self.tk.splitlist(
+            self.tk.call('winfo', 'children', self._w)):
+            try:
+                # Tcl sometimes returns extra windows, e.g. for
+                # menus; those need to be skipped
+                result.append(self._nametowidget(child))
+            except KeyError:
+                pass
+        return result
+
+    def winfo_class(self):
+        """Return window class name of this widget."""
+        return self.tk.call('winfo', 'class', self._w)
+    def winfo_colormapfull(self):
+        """Return true if at the last color request the colormap was full."""
+        return self.tk.getboolean(
+            self.tk.call('winfo', 'colormapfull', self._w))
+    def winfo_containing(self, rootX, rootY, displayof=0):
+        """Return the widget which is at the root coordinates ROOTX, ROOTY."""
+        args = ('winfo', 'containing') \
+               + self._displayof(displayof) + (rootX, rootY)
+        name = self.tk.call(args)
+        if not name: return None
+        return self._nametowidget(name)
+    def winfo_depth(self):
+        """Return the number of bits per pixel."""
+        return getint(self.tk.call('winfo', 'depth', self._w))
+    def winfo_exists(self):
+        """Return true if this widget exists."""
+        return getint(
+            self.tk.call('winfo', 'exists', self._w))
+    def winfo_fpixels(self, number):
+        """Return the number of pixels for the given distance NUMBER
+        (e.g. "3c") as float."""
+        return getdouble(self.tk.call(
+            'winfo', 'fpixels', self._w, number))
+    def winfo_geometry(self):
+        """Return geometry string for this widget in the form "widthxheight+X+Y"."""
+        return self.tk.call('winfo', 'geometry', self._w)
+    def winfo_height(self):
+        """Return height of this widget."""
+        return getint(
+            self.tk.call('winfo', 'height', self._w))
+    def winfo_id(self):
+        """Return identifier ID for this widget."""
+        return self.tk.getint(
+            self.tk.call('winfo', 'id', self._w))
+    def winfo_interps(self, displayof=0):
+        """Return the name of all Tcl interpreters for this display."""
+        args = ('winfo', 'interps') + self._displayof(displayof)
+        return self.tk.splitlist(self.tk.call(args))
+    def winfo_ismapped(self):
+        """Return true if this widget is mapped."""
+        return getint(
+            self.tk.call('winfo', 'ismapped', self._w))
+    def winfo_manager(self):
+        """Return the window mananger name for this widget."""
+        return self.tk.call('winfo', 'manager', self._w)
+    def winfo_name(self):
+        """Return the name of this widget."""
+        return self.tk.call('winfo', 'name', self._w)
+    def winfo_parent(self):
+        """Return the name of the parent of this widget."""
+        return self.tk.call('winfo', 'parent', self._w)
+    def winfo_pathname(self, id, displayof=0):
+        """Return the pathname of the widget given by ID."""
+        args = ('winfo', 'pathname') \
+               + self._displayof(displayof) + (id,)
+        return self.tk.call(args)
+    def winfo_pixels(self, number):
+        """Rounded integer value of winfo_fpixels."""
+        return getint(
+            self.tk.call('winfo', 'pixels', self._w, number))
+    def winfo_pointerx(self):
+        """Return the x coordinate of the pointer on the root window."""
+        return getint(
+            self.tk.call('winfo', 'pointerx', self._w))
+    def winfo_pointerxy(self):
+        """Return a tuple of x and y coordinates of the pointer on the root window."""
+        return self._getints(
+            self.tk.call('winfo', 'pointerxy', self._w))
+    def winfo_pointery(self):
+        """Return the y coordinate of the pointer on the root window."""
+        return getint(
+            self.tk.call('winfo', 'pointery', self._w))
+    def winfo_reqheight(self):
+        """Return requested height of this widget."""
+        return getint(
+            self.tk.call('winfo', 'reqheight', self._w))
+    def winfo_reqwidth(self):
+        """Return requested width of this widget."""
+        return getint(
+            self.tk.call('winfo', 'reqwidth', self._w))
+    def winfo_rgb(self, color):
+        """Return tuple of decimal values for red, green, blue for
+        COLOR in this widget."""
+        return self._getints(
+            self.tk.call('winfo', 'rgb', self._w, color))
+    def winfo_rootx(self):
+        """Return x coordinate of upper left corner of this widget on the
+        root window."""
+        return getint(
+            self.tk.call('winfo', 'rootx', self._w))
+    def winfo_rooty(self):
+        """Return y coordinate of upper left corner of this widget on the
+        root window."""
+        return getint(
+            self.tk.call('winfo', 'rooty', self._w))
+    def winfo_screen(self):
+        """Return the screen name of this widget."""
+        return self.tk.call('winfo', 'screen', self._w)
+    def winfo_screencells(self):
+        """Return the number of the cells in the colormap of the screen
+        of this widget."""
+        return getint(
+            self.tk.call('winfo', 'screencells', self._w))
+    def winfo_screendepth(self):
+        """Return the number of bits per pixel of the root window of the
+        screen of this widget."""
+        return getint(
+            self.tk.call('winfo', 'screendepth', self._w))
+    def winfo_screenheight(self):
+        """Return the number of pixels of the height of the screen of this widget
+        in pixel."""
+        return getint(
+            self.tk.call('winfo', 'screenheight', self._w))
+    def winfo_screenmmheight(self):
+        """Return the number of pixels of the height of the screen of
+        this widget in mm."""
+        return getint(
+            self.tk.call('winfo', 'screenmmheight', self._w))
+    def winfo_screenmmwidth(self):
+        """Return the number of pixels of the width of the screen of
+        this widget in mm."""
+        return getint(
+            self.tk.call('winfo', 'screenmmwidth', self._w))
+    def winfo_screenvisual(self):
+        """Return one of the strings directcolor, grayscale, pseudocolor,
+        staticcolor, staticgray, or truecolor for the default
+        colormodel of this screen."""
+        return self.tk.call('winfo', 'screenvisual', self._w)
+    def winfo_screenwidth(self):
+        """Return the number of pixels of the width of the screen of
+        this widget in pixel."""
+        return getint(
+            self.tk.call('winfo', 'screenwidth', self._w))
+    def winfo_server(self):
+        """Return information of the X-Server of the screen of this widget in
+        the form "XmajorRminor vendor vendorVersion"."""
+        return self.tk.call('winfo', 'server', self._w)
+    def winfo_toplevel(self):
+        """Return the toplevel widget of this widget."""
+        return self._nametowidget(self.tk.call(
+            'winfo', 'toplevel', self._w))
+    def winfo_viewable(self):
+        """Return true if the widget and all its higher ancestors are mapped."""
+        return getint(
+            self.tk.call('winfo', 'viewable', self._w))
+    def winfo_visual(self):
+        """Return one of the strings directcolor, grayscale, pseudocolor,
+        staticcolor, staticgray, or truecolor for the
+        colormodel of this widget."""
+        return self.tk.call('winfo', 'visual', self._w)
+    def winfo_visualid(self):
+        """Return the X identifier for the visual for this widget."""
+        return self.tk.call('winfo', 'visualid', self._w)
+    def winfo_visualsavailable(self, includeids=0):
+        """Return a list of all visuals available for the screen
+        of this widget.
+
+        Each item in the list consists of a visual name (see winfo_visual), a
+        depth and if INCLUDEIDS=1 is given also the X identifier."""
+        data = self.tk.split(
+            self.tk.call('winfo', 'visualsavailable', self._w,
+                     includeids and 'includeids' or None))
+        if type(data) is StringType:
+            data = [self.tk.split(data)]
+        return map(self.__winfo_parseitem, data)
+    def __winfo_parseitem(self, t):
+        """Internal function."""
+        return t[:1] + tuple(map(self.__winfo_getint, t[1:]))
+    def __winfo_getint(self, x):
+        """Internal function."""
+        return int(x, 0)
+    def winfo_vrootheight(self):
+        """Return the height of the virtual root window associated with this
+        widget in pixels. If there is no virtual root window return the
+        height of the screen."""
+        return getint(
+            self.tk.call('winfo', 'vrootheight', self._w))
+    def winfo_vrootwidth(self):
+        """Return the width of the virtual root window associated with this
+        widget in pixel. If there is no virtual root window return the
+        width of the screen."""
+        return getint(
+            self.tk.call('winfo', 'vrootwidth', self._w))
+    def winfo_vrootx(self):
+        """Return the x offset of the virtual root relative to the root
+        window of the screen of this widget."""
+        return getint(
+            self.tk.call('winfo', 'vrootx', self._w))
+    def winfo_vrooty(self):
+        """Return the y offset of the virtual root relative to the root
+        window of the screen of this widget."""
+        return getint(
+            self.tk.call('winfo', 'vrooty', self._w))
+    def winfo_width(self):
+        """Return the width of this widget."""
+        return getint(
+            self.tk.call('winfo', 'width', self._w))
+    def winfo_x(self):
+        """Return the x coordinate of the upper left corner of this widget
+        in the parent."""
+        return getint(
+            self.tk.call('winfo', 'x', self._w))
+    def winfo_y(self):
+        """Return the y coordinate of the upper left corner of this widget
+        in the parent."""
+        return getint(
+            self.tk.call('winfo', 'y', self._w))
+    def update(self):
+        """Enter event loop until all pending events have been processed by Tcl."""
+        self.tk.call('update')
+    def update_idletasks(self):
+        """Enter event loop until all idle callbacks have been called. This
+        will update the display of windows but not process events caused by
+        the user."""
+        self.tk.call('update', 'idletasks')
+    def bindtags(self, tagList=None):
+        """Set or get the list of bindtags for this widget.
+
+        With no argument return the list of all bindtags associated with
+        this widget. With a list of strings as argument the bindtags are
+        set to this list. The bindtags determine in which order events are
+        processed (see bind)."""
+        if tagList is None:
+            return self.tk.splitlist(
+                self.tk.call('bindtags', self._w))
+        else:
+            self.tk.call('bindtags', self._w, tagList)
+    def _bind(self, what, sequence, func, add, needcleanup=1):
+        """Internal function."""
+        if type(func) is StringType:
+            self.tk.call(what + (sequence, func))
+        elif func:
+            funcid = self._register(func, self._substitute,
+                        needcleanup)
+            cmd = ('%sif {"[%s %s]" == "break"} break\n'
+                   %
+                   (add and '+' or '',
+                funcid, self._subst_format_str))
+            self.tk.call(what + (sequence, cmd))
+            return funcid
+        elif sequence:
+            return self.tk.call(what + (sequence,))
+        else:
+            return self.tk.splitlist(self.tk.call(what))
+    def bind(self, sequence=None, func=None, add=None):
+        """Bind to this widget at event SEQUENCE a call to function FUNC.
+
+        SEQUENCE is a string of concatenated event
+        patterns. An event pattern is of the form
+        <MODIFIER-MODIFIER-TYPE-DETAIL> where MODIFIER is one
+        of Control, Mod2, M2, Shift, Mod3, M3, Lock, Mod4, M4,
+        Button1, B1, Mod5, M5 Button2, B2, Meta, M, Button3,
+        B3, Alt, Button4, B4, Double, Button5, B5 Triple,
+        Mod1, M1. TYPE is one of Activate, Enter, Map,
+        ButtonPress, Button, Expose, Motion, ButtonRelease
+        FocusIn, MouseWheel, Circulate, FocusOut, Property,
+        Colormap, Gravity Reparent, Configure, KeyPress, Key,
+        Unmap, Deactivate, KeyRelease Visibility, Destroy,
+        Leave and DETAIL is the button number for ButtonPress,
+        ButtonRelease and DETAIL is the Keysym for KeyPress and
+        KeyRelease. Examples are
+        <Control-Button-1> for pressing Control and mouse button 1 or
+        <Alt-A> for pressing A and the Alt key (KeyPress can be omitted).
+        An event pattern can also be a virtual event of the form
+        <<AString>> where AString can be arbitrary. This
+        event can be generated by event_generate.
+        If events are concatenated they must appear shortly
+        after each other.
+
+        FUNC will be called if the event sequence occurs with an
+        instance of Event as argument. If the return value of FUNC is
+        "break" no further bound function is invoked.
+
+        An additional boolean parameter ADD specifies whether FUNC will
+        be called additionally to the other bound function or whether
+        it will replace the previous function.
+
+        Bind will return an identifier to allow deletion of the bound function with
+        unbind without memory leak.
+
+        If FUNC or SEQUENCE is omitted the bound function or list
+        of bound events are returned."""
+
+        return self._bind(('bind', self._w), sequence, func, add)
+    def unbind(self, sequence, funcid=None):
+        """Unbind for this widget for event SEQUENCE  the
+        function identified with FUNCID."""
+        self.tk.call('bind', self._w, sequence, '')
+        if funcid:
+            self.deletecommand(funcid)
+    def bind_all(self, sequence=None, func=None, add=None):
+        """Bind to all widgets at an event SEQUENCE a call to function FUNC.
+        An additional boolean parameter ADD specifies whether FUNC will
+        be called additionally to the other bound function or whether
+        it will replace the previous function. See bind for the return value."""
+        return self._bind(('bind', 'all'), sequence, func, add, 0)
+    def unbind_all(self, sequence):
+        """Unbind for all widgets for event SEQUENCE all functions."""
+        self.tk.call('bind', 'all' , sequence, '')
+    def bind_class(self, className, sequence=None, func=None, add=None):
+
+        """Bind to widgets with bindtag CLASSNAME at event
+        SEQUENCE a call of function FUNC. An additional
+        boolean parameter ADD specifies whether FUNC will be
+        called additionally to the other bound function or
+        whether it will replace the previous function. See bind for
+        the return value."""
+
+        return self._bind(('bind', className), sequence, func, add, 0)
+    def unbind_class(self, className, sequence):
+        """Unbind for a all widgets with bindtag CLASSNAME for event SEQUENCE
+        all functions."""
+        self.tk.call('bind', className , sequence, '')
+    def mainloop(self, n=0):
+        """Call the mainloop of Tk."""
+        self.tk.mainloop(n)
+    def quit(self):
+        """Quit the Tcl interpreter. All widgets will be destroyed."""
+        self.tk.quit()
+    def _getints(self, string):
+        """Internal function."""
+        if string:
+            return tuple(map(getint, self.tk.splitlist(string)))
+    def _getdoubles(self, string):
+        """Internal function."""
+        if string:
+            return tuple(map(getdouble, self.tk.splitlist(string)))
+    def _getboolean(self, string):
+        """Internal function."""
+        if string:
+            return self.tk.getboolean(string)
+    def _displayof(self, displayof):
+        """Internal function."""
+        if displayof:
+            return ('-displayof', displayof)
+        if displayof is None:
+            return ('-displayof', self._w)
+        return ()
+    def _options(self, cnf, kw = None):
+        """Internal function."""
+        if kw:
+            cnf = _cnfmerge((cnf, kw))
+        else:
+            cnf = _cnfmerge(cnf)
+        res = ()
+        for k, v in cnf.items():
+            if v is not None:
+                if k[-1] == '_': k = k[:-1]
+                if callable(v):
+                    v = self._register(v)
+                res = res + ('-'+k, v)
+        return res
+    def nametowidget(self, name):
+        """Return the Tkinter instance of a widget identified by
+        its Tcl name NAME."""
+        w = self
+        if name[0] == '.':
+            w = w._root()
+            name = name[1:]
+        while name:
+            i = name.find('.')
+            if i >= 0:
+                name, tail = name[:i], name[i+1:]
+            else:
+                tail = ''
+            w = w.children[name]
+            name = tail
+        return w
+    _nametowidget = nametowidget
+    def _register(self, func, subst=None, needcleanup=1):
+        """Return a newly created Tcl function. If this
+        function is called, the Python function FUNC will
+        be executed. An optional function SUBST can
+        be given which will be executed before FUNC."""
+        f = CallWrapper(func, subst, self).__call__
+        name = repr(id(f))
+        try:
+            func = func.im_func
+        except AttributeError:
+            pass
+        try:
+            name = name + func.__name__
+        except AttributeError:
+            pass
+        self.tk.createcommand(name, f)
+        if needcleanup:
+            if self._tclCommands is None:
+                self._tclCommands = []
+            self._tclCommands.append(name)
+        #print '+ Tkinter created command', name
+        return name
+    register = _register
+    def _root(self):
+        """Internal function."""
+        w = self
+        while w.master: w = w.master
+        return w
+    _subst_format = ('%#', '%b', '%f', '%h', '%k',
+             '%s', '%t', '%w', '%x', '%y',
+             '%A', '%E', '%K', '%N', '%W', '%T', '%X', '%Y', '%D')
+    _subst_format_str = " ".join(_subst_format)
+    def _substitute(self, *args):
+        """Internal function."""
+        if len(args) != len(self._subst_format): return args
+        getboolean = self.tk.getboolean
+
+        getint = int
+        def getint_event(s):
+            """Tk changed behavior in 8.4.2, returning "??" rather more often."""
+            try:
+                return int(s)
+            except ValueError:
+                return s
+
+        nsign, b, f, h, k, s, t, w, x, y, A, E, K, N, W, T, X, Y, D = args
+        # Missing: (a, c, d, m, o, v, B, R)
+        e = Event()
+        # serial field: valid vor all events
+        # number of button: ButtonPress and ButtonRelease events only
+        # height field: Configure, ConfigureRequest, Create,
+        # ResizeRequest, and Expose events only
+        # keycode field: KeyPress and KeyRelease events only
+        # time field: "valid for events that contain a time field"
+        # width field: Configure, ConfigureRequest, Create, ResizeRequest,
+        # and Expose events only
+        # x field: "valid for events that contain a x field"
+        # y field: "valid for events that contain a y field"
+        # keysym as decimal: KeyPress and KeyRelease events only
+        # x_root, y_root fields: ButtonPress, ButtonRelease, KeyPress,
+        # KeyRelease,and Motion events
+        e.serial = getint(nsign)
+        e.num = getint_event(b)
+        try: e.focus = getboolean(f)
+        except TclError: pass
+        e.height = getint_event(h)
+        e.keycode = getint_event(k)
+        e.state = getint_event(s)
+        e.time = getint_event(t)
+        e.width = getint_event(w)
+        e.x = getint_event(x)
+        e.y = getint_event(y)
+        e.char = A
+        try: e.send_event = getboolean(E)
+        except TclError: pass
+        e.keysym = K
+        e.keysym_num = getint_event(N)
+        e.type = T
+        try:
+            e.widget = self._nametowidget(W)
+        except KeyError:
+            e.widget = W
+        e.x_root = getint_event(X)
+        e.y_root = getint_event(Y)
+        try:
+            e.delta = getint(D)
+        except ValueError:
+            e.delta = 0
+        return (e,)
+    def _report_exception(self):
+        """Internal function."""
+        import sys
+        exc, val, tb = sys.exc_type, sys.exc_value, sys.exc_traceback
+        root = self._root()
+        root.report_callback_exception(exc, val, tb)
+    def _configure(self, cmd, cnf, kw):
+        """Internal function."""
+        if kw:
+            cnf = _cnfmerge((cnf, kw))
+        elif cnf:
+            cnf = _cnfmerge(cnf)
+        if cnf is None:
+            cnf = {}
+            for x in self.tk.split(
+                    self.tk.call(_flatten((self._w, cmd)))):
+                cnf[x[0][1:]] = (x[0][1:],) + x[1:]
+            return cnf
+        if type(cnf) is StringType:
+            x = self.tk.split(
+                    self.tk.call(_flatten((self._w, cmd, '-'+cnf))))
+            return (x[0][1:],) + x[1:]
+        self.tk.call(_flatten((self._w, cmd)) + self._options(cnf))
+    # These used to be defined in Widget:
+    def configure(self, cnf=None, **kw):
+        """Configure resources of a widget.
+
+        The values for resources are specified as keyword
+        arguments. To get an overview about
+        the allowed keyword arguments call the method keys.
+        """
+        return self._configure('configure', cnf, kw)
+    config = configure
+    def cget(self, key):
+        """Return the resource value for a KEY given as string."""
+        print key
+        return self.tk.call(self._w, 'cget', '-' + key)
+    __getitem__ = cget
+    def __setitem__(self, key, value):
+        self.configure({key: value})
+    def keys(self):
+        """Return a list of all resource names of this widget."""
+        return map(lambda x: x[0][1:],
+               self.tk.split(self.tk.call(self._w, 'configure')))
+    def __str__(self):
+        """Return the window path name of this widget."""
+        return self._w
+    # Pack methods that apply to the master
+    _noarg_ = ['_noarg_']
+    def pack_propagate(self, flag=_noarg_):
+        """Set or get the status for propagation of geometry information.
+
+        A boolean argument specifies whether the geometry information
+        of the slaves will determine the size of this widget. If no argument
+        is given the current setting will be returned.
+        """
+        if flag is Misc._noarg_:
+            return self._getboolean(self.tk.call(
+                'pack', 'propagate', self._w))
+        else:
+            self.tk.call('pack', 'propagate', self._w, flag)
+    propagate = pack_propagate
+    def pack_slaves(self):
+        """Return a list of all slaves of this widget
+        in its packing order."""
+        return map(self._nametowidget,
+               self.tk.splitlist(
+                   self.tk.call('pack', 'slaves', self._w)))
+    slaves = pack_slaves
+    # Place method that applies to the master
+    def place_slaves(self):
+        """Return a list of all slaves of this widget
+        in its packing order."""
+        return map(self._nametowidget,
+               self.tk.splitlist(
+                   self.tk.call(
+                       'place', 'slaves', self._w)))
+    # Grid methods that apply to the master
+    def grid_bbox(self, column=None, row=None, col2=None, row2=None):
+        """Return a tuple of integer coordinates for the bounding
+        box of this widget controlled by the geometry manager grid.
+
+        If COLUMN, ROW is given the bounding box applies from
+        the cell with row and column 0 to the specified
+        cell. If COL2 and ROW2 are given the bounding box
+        starts at that cell.
+
+        The returned integers specify the offset of the upper left
+        corner in the master widget and the width and height.
+        """
+        args = ('grid', 'bbox', self._w)
+        if column is not None and row is not None:
+            args = args + (column, row)
+        if col2 is not None and row2 is not None:
+            args = args + (col2, row2)
+        return self._getints(self.tk.call(*args)) or None
+
+    bbox = grid_bbox
+    def _grid_configure(self, command, index, cnf, kw):
+        """Internal function."""
+        if type(cnf) is StringType and not kw:
+            if cnf[-1:] == '_':
+                cnf = cnf[:-1]
+            if cnf[:1] != '-':
+                cnf = '-'+cnf
+            options = (cnf,)
+        else:
+            options = self._options(cnf, kw)
+        if not options:
+            res = self.tk.call('grid',
+                       command, self._w, index)
+            words = self.tk.splitlist(res)
+            dict = {}
+            for i in range(0, len(words), 2):
+                key = words[i][1:]
+                value = words[i+1]
+                if not value:
+                    value = None
+                elif '.' in value:
+                    value = getdouble(value)
+                else:
+                    value = getint(value)
+                dict[key] = value
+            return dict
+        res = self.tk.call(
+                  ('grid', command, self._w, index)
+                  + options)
+        if len(options) == 1:
+            if not res: return None
+            # In Tk 7.5, -width can be a float
+            if '.' in res: return getdouble(res)
+            return getint(res)
+    def grid_columnconfigure(self, index, cnf={}, **kw):
+        """Configure column INDEX of a grid.
+
+        Valid resources are minsize (minimum size of the column),
+        weight (how much does additional space propagate to this column)
+        and pad (how much space to let additionally)."""
+        return self._grid_configure('columnconfigure', index, cnf, kw)
+    columnconfigure = grid_columnconfigure
+    def grid_location(self, x, y):
+        """Return a tuple of column and row which identify the cell
+        at which the pixel at position X and Y inside the master
+        widget is located."""
+        return self._getints(
+            self.tk.call(
+                'grid', 'location', self._w, x, y)) or None
+    def grid_propagate(self, flag=_noarg_):
+        """Set or get the status for propagation of geometry information.
+
+        A boolean argument specifies whether the geometry information
+        of the slaves will determine the size of this widget. If no argument
+        is given, the current setting will be returned.
+        """
+        if flag is Misc._noarg_:
+            return self._getboolean(self.tk.call(
+                'grid', 'propagate', self._w))
+        else:
+            self.tk.call('grid', 'propagate', self._w, flag)
+    def grid_rowconfigure(self, index, cnf={}, **kw):
+        """Configure row INDEX of a grid.
+
+        Valid resources are minsize (minimum size of the row),
+        weight (how much does additional space propagate to this row)
+        and pad (how much space to let additionally)."""
+        return self._grid_configure('rowconfigure', index, cnf, kw)
+    rowconfigure = grid_rowconfigure
+    def grid_size(self):
+        """Return a tuple of the number of column and rows in the grid."""
+        return self._getints(
+            self.tk.call('grid', 'size', self._w)) or None
+    size = grid_size
+    def grid_slaves(self, row=None, column=None):
+        """Return a list of all slaves of this widget
+        in its packing order."""
+        args = ()
+        if row is not None:
+            args = args + ('-row', row)
+        if column is not None:
+            args = args + ('-column', column)
+        return map(self._nametowidget,
+               self.tk.splitlist(self.tk.call(
+                   ('grid', 'slaves', self._w) + args)))
+
+    # Support for the "event" command, new in Tk 4.2.
+    # By Case Roole.
+
+    def event_add(self, virtual, *sequences):
+        """Bind a virtual event VIRTUAL (of the form <<Name>>)
+        to an event SEQUENCE such that the virtual event is triggered
+        whenever SEQUENCE occurs."""
+        args = ('event', 'add', virtual) + sequences
+        self.tk.call(args)
+
+    def event_delete(self, virtual, *sequences):
+        """Unbind a virtual event VIRTUAL from SEQUENCE."""
+        args = ('event', 'delete', virtual) + sequences
+        self.tk.call(args)
+
+    def event_generate(self, sequence, **kw):
+        """Generate an event SEQUENCE. Additional
+        keyword arguments specify parameter of the event
+        (e.g. x, y, rootx, rooty)."""
+        args = ('event', 'generate', self._w, sequence)
+        for k, v in kw.items():
+            args = args + ('-%s' % k, str(v))
+        self.tk.call(args)
+
+    def event_info(self, virtual=None):
+        """Return a list of all virtual events or the information
+        about the SEQUENCE bound to the virtual event VIRTUAL."""
+        return self.tk.splitlist(
+            self.tk.call('event', 'info', virtual))
+
+    # Image related commands
+
+    def image_names(self):
+        """Return a list of all existing image names."""
+        return self.tk.call('image', 'names')
+
+    def image_types(self):
+        """Return a list of all available image types (e.g. phote bitmap)."""
+        return self.tk.call('image', 'types')
+
+
+class CallWrapper:
+    """Internal class. Stores function to call when some user
+    defined Tcl function is called e.g. after an event occurred."""
+    def __init__(self, func, subst, widget):
+        """Store FUNC, SUBST and WIDGET as members."""
+        self.func = func
+        self.subst = subst
+        self.widget = widget
+    def __call__(self, *args):
+        """Apply first function SUBST to arguments, than FUNC."""
+        try:
+            if self.subst:
+                args = self.subst(*args)
+            return self.func(*args)
+        except SystemExit, msg:
+            raise SystemExit, msg
+        except:
+            self.widget._report_exception()
+
+
+class Wm:
+    """Provides functions for the communication with the window manager."""
+
+    def wm_aspect(self,
+              minNumer=None, minDenom=None,
+              maxNumer=None, maxDenom=None):
+        """Instruct the window manager to set the aspect ratio (width/height)
+        of this widget to be between MINNUMER/MINDENOM and MAXNUMER/MAXDENOM. Return a tuple
+        of the actual values if no argument is given."""
+        return self._getints(
+            self.tk.call('wm', 'aspect', self._w,
+                     minNumer, minDenom,
+                     maxNumer, maxDenom))
+    aspect = wm_aspect
+
+    def wm_attributes(self, *args):
+        """This subcommand returns or sets platform specific attributes
+
+        The first form returns a list of the platform specific flags and
+        their values. The second form returns the value for the specific
+        option. The third form sets one or more of the values. The values
+        are as follows:
+
+        On Windows, -disabled gets or sets whether the window is in a
+        disabled state. -toolwindow gets or sets the style of the window
+        to toolwindow (as defined in the MSDN). -topmost gets or sets
+        whether this is a topmost window (displays above all other
+        windows).
+
+        On Macintosh, XXXXX
+
+        On Unix, there are currently no special attribute values.
+        """
+        args = ('wm', 'attributes', self._w) + args
+        return self.tk.call(args)
+    attributes=wm_attributes
+
+    def wm_client(self, name=None):
+        """Store NAME in WM_CLIENT_MACHINE property of this widget. Return
+        current value."""
+        return self.tk.call('wm', 'client', self._w, name)
+    client = wm_client
+    def wm_colormapwindows(self, *wlist):
+        """Store list of window names (WLIST) into WM_COLORMAPWINDOWS property
+        of this widget. This list contains windows whose colormaps differ from their
+        parents. Return current list of widgets if WLIST is empty."""
+        if len(wlist) > 1:
+            wlist = (wlist,) # Tk needs a list of windows here
+        args = ('wm', 'colormapwindows', self._w) + wlist
+        return map(self._nametowidget, self.tk.call(args))
+    colormapwindows = wm_colormapwindows
+    def wm_command(self, value=None):
+        """Store VALUE in WM_COMMAND property. It is the command
+        which shall be used to invoke the application. Return current
+        command if VALUE is None."""
+        return self.tk.call('wm', 'command', self._w, value)
+    command = wm_command
+    def wm_deiconify(self):
+        """Deiconify this widget. If it was never mapped it will not be mapped.
+        On Windows it will raise this widget and give it the focus."""
+        return self.tk.call('wm', 'deiconify', self._w)
+    deiconify = wm_deiconify
+    def wm_focusmodel(self, model=None):
+        """Set focus model to MODEL. "active" means that this widget will claim
+        the focus itself, "passive" means that the window manager shall give
+        the focus. Return current focus model if MODEL is None."""
+        return self.tk.call('wm', 'focusmodel', self._w, model)
+    focusmodel = wm_focusmodel
+    def wm_frame(self):
+        """Return identifier for decorative frame of this widget if present."""
+        return self.tk.call('wm', 'frame', self._w)
+    frame = wm_frame
+    def wm_geometry(self, newGeometry=None):
+        """Set geometry to NEWGEOMETRY of the form =widthxheight+x+y. Return
+        current value if None is given."""
+        return self.tk.call('wm', 'geometry', self._w, newGeometry)
+    geometry = wm_geometry
+    def wm_grid(self,
+         baseWidth=None, baseHeight=None,
+         widthInc=None, heightInc=None):
+        """Instruct the window manager that this widget shall only be
+        resized on grid boundaries. WIDTHINC and HEIGHTINC are the width and
+        height of a grid unit in pixels. BASEWIDTH and BASEHEIGHT are the
+        number of grid units requested in Tk_GeometryRequest."""
+        return self._getints(self.tk.call(
+            'wm', 'grid', self._w,
+            baseWidth, baseHeight, widthInc, heightInc))
+    grid = wm_grid
+    def wm_group(self, pathName=None):
+        """Set the group leader widgets for related widgets to PATHNAME. Return
+        the group leader of this widget if None is given."""
+        return self.tk.call('wm', 'group', self._w, pathName)
+    group = wm_group
+    def wm_iconbitmap(self, bitmap=None, default=None):
+        """Set bitmap for the iconified widget to BITMAP. Return
+        the bitmap if None is given.
+
+        Under Windows, the DEFAULT parameter can be used to set the icon
+        for the widget and any descendents that don't have an icon set
+        explicitly.  DEFAULT can be the relative path to a .ico file
+        (example: root.iconbitmap(default='myicon.ico') ).  See Tk
+        documentation for more information."""
+        if default:
+            return self.tk.call('wm', 'iconbitmap', self._w, '-default', default)
+        else:
+            return self.tk.call('wm', 'iconbitmap', self._w, bitmap)
+    iconbitmap = wm_iconbitmap
+    def wm_iconify(self):
+        """Display widget as icon."""
+        return self.tk.call('wm', 'iconify', self._w)
+    iconify = wm_iconify
+    def wm_iconmask(self, bitmap=None):
+        """Set mask for the icon bitmap of this widget. Return the
+        mask if None is given."""
+        return self.tk.call('wm', 'iconmask', self._w, bitmap)
+    iconmask = wm_iconmask
+    def wm_iconname(self, newName=None):
+        """Set the name of the icon for this widget. Return the name if
+        None is given."""
+        return self.tk.call('wm', 'iconname', self._w, newName)
+    iconname = wm_iconname
+    def wm_iconposition(self, x=None, y=None):
+        """Set the position of the icon of this widget to X and Y. Return
+        a tuple of the current values of X and X if None is given."""
+        return self._getints(self.tk.call(
+            'wm', 'iconposition', self._w, x, y))
+    iconposition = wm_iconposition
+    def wm_iconwindow(self, pathName=None):
+        """Set widget PATHNAME to be displayed instead of icon. Return the current
+        value if None is given."""
+        return self.tk.call('wm', 'iconwindow', self._w, pathName)
+    iconwindow = wm_iconwindow
+    def wm_maxsize(self, width=None, height=None):
+        """Set max WIDTH and HEIGHT for this widget. If the window is gridded
+        the values are given in grid units. Return the current values if None
+        is given."""
+        return self._getints(self.tk.call(
+            'wm', 'maxsize', self._w, width, height))
+    maxsize = wm_maxsize
+    def wm_minsize(self, width=None, height=None):
+        """Set min WIDTH and HEIGHT for this widget. If the window is gridded
+        the values are given in grid units. Return the current values if None
+        is given."""
+        return self._getints(self.tk.call(
+            'wm', 'minsize', self._w, width, height))
+    minsize = wm_minsize
+    def wm_overrideredirect(self, boolean=None):
+        """Instruct the window manager to ignore this widget
+        if BOOLEAN is given with 1. Return the current value if None
+        is given."""
+        return self._getboolean(self.tk.call(
+            'wm', 'overrideredirect', self._w, boolean))
+    overrideredirect = wm_overrideredirect
+    def wm_positionfrom(self, who=None):
+        """Instruct the window manager that the position of this widget shall
+        be defined by the user if WHO is "user", and by its own policy if WHO is
+        "program"."""
+        return self.tk.call('wm', 'positionfrom', self._w, who)
+    positionfrom = wm_positionfrom
+    def wm_protocol(self, name=None, func=None):
+        """Bind function FUNC to command NAME for this widget.
+        Return the function bound to NAME if None is given. NAME could be
+        e.g. "WM_SAVE_YOURSELF" or "WM_DELETE_WINDOW"."""
+        if callable(func):
+            command = self._register(func)
+        else:
+            command = func
+        return self.tk.call(
+            'wm', 'protocol', self._w, name, command)
+    protocol = wm_protocol
+    def wm_resizable(self, width=None, height=None):
+        """Instruct the window manager whether this width can be resized
+        in WIDTH or HEIGHT. Both values are boolean values."""
+        return self.tk.call('wm', 'resizable', self._w, width, height)
+    resizable = wm_resizable
+    def wm_sizefrom(self, who=None):
+        """Instruct the window manager that the size of this widget shall
+        be defined by the user if WHO is "user", and by its own policy if WHO is
+        "program"."""
+        return self.tk.call('wm', 'sizefrom', self._w, who)
+    sizefrom = wm_sizefrom
+    def wm_state(self, newstate=None):
+        """Query or set the state of this widget as one of normal, icon,
+        iconic (see wm_iconwindow), withdrawn, or zoomed (Windows only)."""
+        return self.tk.call('wm', 'state', self._w, newstate)
+    state = wm_state
+    def wm_title(self, string=None):
+        """Set the title of this widget."""
+        return self.tk.call('wm', 'title', self._w, string)
+    title = wm_title
+    def wm_transient(self, master=None):
+        """Instruct the window manager that this widget is transient
+        with regard to widget MASTER."""
+        return self.tk.call('wm', 'transient', self._w, master)
+    transient = wm_transient
+    def wm_withdraw(self):
+        """Withdraw this widget from the screen such that it is unmapped
+        and forgotten by the window manager. Re-draw it with wm_deiconify."""
+        return self.tk.call('wm', 'withdraw', self._w)
+    withdraw = wm_withdraw
+
+
+class Tk(Misc, Wm):
+    """Toplevel widget of Tk which represents mostly the main window
+    of an appliation. It has an associated Tcl interpreter."""
+    _w = '.'
+    def __init__(self, screenName=None, baseName=None, className='Tk',
+                 useTk=1, sync=0, use=None):
+        """Return a new Toplevel widget on screen SCREENNAME. A new Tcl interpreter will
+        be created. BASENAME will be used for the identification of the profile file (see
+        readprofile).
+        It is constructed from sys.argv[0] without extensions if None is given. CLASSNAME
+        is the name of the widget class."""
+        self.master = None
+        self.children = {}
+        self._tkloaded = 0
+        # to avoid recursions in the getattr code in case of failure, we
+        # ensure that self.tk is always _something_.
+        self.tk = None
+        if baseName is None:
+            import sys, os
+            baseName = os.path.basename(sys.argv[0])
+            baseName, ext = os.path.splitext(baseName)
+            if ext not in ('.py', '.pyc', '.pyo'):
+                baseName = baseName + ext
+        interactive = 0
+        self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use)
+        if useTk:
+            self._loadtk()
+        self.readprofile(baseName, className)
+    def loadtk(self):
+        if not self._tkloaded:
+            self.tk.loadtk()
+            self._loadtk()
+    def _loadtk(self):
+        self._tkloaded = 1
+        global _default_root
+        if _MacOS and hasattr(_MacOS, 'SchedParams'):
+            # Disable event scanning except for Command-Period
+            _MacOS.SchedParams(1, 0)
+            # Work around nasty MacTk bug
+            # XXX Is this one still needed?
+            self.update()
+        # Version sanity checks
+        tk_version = self.tk.getvar('tk_version')
+        if tk_version != _tkinter.TK_VERSION:
+            raise RuntimeError, \
+            "tk.h version (%s) doesn't match libtk.a version (%s)" \
+            % (_tkinter.TK_VERSION, tk_version)
+        # Under unknown circumstances, tcl_version gets coerced to float
+        tcl_version = str(self.tk.getvar('tcl_version'))
+        if tcl_version != _tkinter.TCL_VERSION:
+            raise RuntimeError, \
+            "tcl.h version (%s) doesn't match libtcl.a version (%s)" \
+            % (_tkinter.TCL_VERSION, tcl_version)
+        if TkVersion < 4.0:
+            raise RuntimeError, \
+            "Tk 4.0 or higher is required; found Tk %s" \
+            % str(TkVersion)
+        # Create and register the tkerror and exit commands
+        # We need to inline parts of _register here, _ register
+        # would register differently-named commands.
+        if self._tclCommands is None:
+            self._tclCommands = []
+        self.tk.createcommand('tkerror', _tkerror)
+        self.tk.createcommand('exit', _exit)
+        self._tclCommands.append('tkerror')
+        self._tclCommands.append('exit')
+        if _support_default_root and not _default_root:
+            _default_root = self
+        self.protocol("WM_DELETE_WINDOW", self.destroy)
+    def destroy(self):
+        """Destroy this and all descendants widgets. This will
+        end the application of this Tcl interpreter."""
+        for c in self.children.values(): c.destroy()
+        self.tk.call('destroy', self._w)
+        Misc.destroy(self)
+        global _default_root
+        if _support_default_root and _default_root is self:
+            _default_root = None
+    def readprofile(self, baseName, className):
+        """Internal function. It reads BASENAME.tcl and CLASSNAME.tcl into
+        the Tcl Interpreter and calls execfile on BASENAME.py and CLASSNAME.py if
+        such a file exists in the home directory."""
+        import os
+        if os.environ.has_key('HOME'): home = os.environ['HOME']
+        else: home = os.curdir
+        class_tcl = os.path.join(home, '.%s.tcl' % className)
+        class_py = os.path.join(home, '.%s.py' % className)
+        base_tcl = os.path.join(home, '.%s.tcl' % baseName)
+        base_py = os.path.join(home, '.%s.py' % baseName)
+        dir = {'self': self}
+        exec 'from tkinter import *' in dir
+        if os.path.isfile(class_tcl):
+            self.tk.call('source', class_tcl)
+        if os.path.isfile(class_py):
+            execfile(class_py, dir)
+        if os.path.isfile(base_tcl):
+            self.tk.call('source', base_tcl)
+        if os.path.isfile(base_py):
+            execfile(base_py, dir)
+    def report_callback_exception(self, exc, val, tb):
+        """Internal function. It reports exception on sys.stderr."""
+        import traceback, sys
+        sys.stderr.write("Exception in Tkinter callback\n")
+        sys.last_type = exc
+        sys.last_value = val
+        sys.last_traceback = tb
+        traceback.print_exception(exc, val, tb)
+    def __getattr__(self, attr):
+        "Delegate attribute access to the interpreter object"
+        return getattr(self.tk, attr)
+
+# Ideally, the classes Pack, Place and Grid disappear, the
+# pack/place/grid methods are defined on the Widget class, and
+# everybody uses w.pack_whatever(...) instead of Pack.whatever(w,
+# ...), with pack(), place() and grid() being short for
+# pack_configure(), place_configure() and grid_columnconfigure(), and
+# forget() being short for pack_forget().  As a practical matter, I'm
+# afraid that there is too much code out there that may be using the
+# Pack, Place or Grid class, so I leave them intact -- but only as
+# backwards compatibility features.  Also note that those methods that
+# take a master as argument (e.g. pack_propagate) have been moved to
+# the Misc class (which now incorporates all methods common between
+# toplevel and interior widgets).  Again, for compatibility, these are
+# copied into the Pack, Place or Grid class.
+
+
+def Tcl(screenName=None, baseName=None, className='Tk', useTk=0):
+    return Tk(screenName, baseName, className, useTk)
+
+class Pack:
+    """Geometry manager Pack.
+
+    Base class to use the methods pack_* in every widget."""
+    def pack_configure(self, cnf={}, **kw):
+        """Pack a widget in the parent widget. Use as options:
+        after=widget - pack it after you have packed widget
+        anchor=NSEW (or subset) - position widget according to
+                                  given direction
+                before=widget - pack it before you will pack widget
+        expand=bool - expand widget if parent size grows
+        fill=NONE or X or Y or BOTH - fill widget if widget grows
+        in=master - use master to contain this widget
+        ipadx=amount - add internal padding in x direction
+        ipady=amount - add internal padding in y direction
+        padx=amount - add padding in x direction
+        pady=amount - add padding in y direction
+        side=TOP or BOTTOM or LEFT or RIGHT -  where to add this widget.
+        """
+        self.tk.call(
+              ('pack', 'configure', self._w)
+              + self._options(cnf, kw))
+    pack = configure = config = pack_configure
+    def pack_forget(self):
+        """Unmap this widget and do not use it for the packing order."""
+        self.tk.call('pack', 'forget', self._w)
+    forget = pack_forget
+    def pack_info(self):
+        """Return information about the packing options
+        for this widget."""
+        words = self.tk.splitlist(
+            self.tk.call('pack', 'info', self._w))
+        dict = {}
+        for i in range(0, len(words), 2):
+            key = words[i][1:]
+            value = words[i+1]
+            if value[:1] == '.':
+                value = self._nametowidget(value)
+            dict[key] = value
+        return dict
+    info = pack_info
+    propagate = pack_propagate = Misc.pack_propagate
+    slaves = pack_slaves = Misc.pack_slaves
+
+class Place:
+    """Geometry manager Place.
+
+    Base class to use the methods place_* in every widget."""
+    def place_configure(self, cnf={}, **kw):
+        """Place a widget in the parent widget. Use as options:
+        in=master - master relative to which the widget is placed.
+        x=amount - locate anchor of this widget at position x of master
+        y=amount - locate anchor of this widget at position y of master
+        relx=amount - locate anchor of this widget between 0.0 and 1.0
+                      relative to width of master (1.0 is right edge)
+            rely=amount - locate anchor of this widget between 0.0 and 1.0
+                      relative to height of master (1.0 is bottom edge)
+            anchor=NSEW (or subset) - position anchor according to given direction
+        width=amount - width of this widget in pixel
+        height=amount - height of this widget in pixel
+        relwidth=amount - width of this widget between 0.0 and 1.0
+                          relative to width of master (1.0 is the same width
+                  as the master)
+            relheight=amount - height of this widget between 0.0 and 1.0
+                           relative to height of master (1.0 is the same
+                   height as the master)
+            bordermode="inside" or "outside" - whether to take border width of master widget
+                                               into account
+            """
+        for k in ['in_']:
+            if kw.has_key(k):
+                kw[k[:-1]] = kw[k]
+                del kw[k]
+        self.tk.call(
+              ('place', 'configure', self._w)
+              + self._options(cnf, kw))
+    place = configure = config = place_configure
+    def place_forget(self):
+        """Unmap this widget."""
+        self.tk.call('place', 'forget', self._w)
+    forget = place_forget
+    def place_info(self):
+        """Return information about the placing options
+        for this widget."""
+        words = self.tk.splitlist(
+            self.tk.call('place', 'info', self._w))
+        dict = {}
+        for i in range(0, len(words), 2):
+            key = words[i][1:]
+            value = words[i+1]
+            if value[:1] == '.':
+                value = self._nametowidget(value)
+            dict[key] = value
+        return dict
+    info = place_info
+    slaves = place_slaves = Misc.place_slaves
+
+class Grid:
+    """Geometry manager Grid.
+
+    Base class to use the methods grid_* in every widget."""
+    # Thanks to Masazumi Yoshikawa (yosikawa@isi.edu)
+    def grid_configure(self, cnf={}, **kw):
+        """Position a widget in the parent widget in a grid. Use as options:
+        column=number - use cell identified with given column (starting with 0)
+        columnspan=number - this widget will span several columns
+        in=master - use master to contain this widget
+        ipadx=amount - add internal padding in x direction
+        ipady=amount - add internal padding in y direction
+        padx=amount - add padding in x direction
+        pady=amount - add padding in y direction
+        row=number - use cell identified with given row (starting with 0)
+        rowspan=number - this widget will span several rows
+        sticky=NSEW - if cell is larger on which sides will this
+                      widget stick to the cell boundary
+        """
+        self.tk.call(
+              ('grid', 'configure', self._w)
+              + self._options(cnf, kw))
+    grid = configure = config = grid_configure
+    bbox = grid_bbox = Misc.grid_bbox
+    columnconfigure = grid_columnconfigure = Misc.grid_columnconfigure
+    def grid_forget(self):
+        """Unmap this widget."""
+        self.tk.call('grid', 'forget', self._w)
+    forget = grid_forget
+    def grid_remove(self):
+        """Unmap this widget but remember the grid options."""
+        self.tk.call('grid', 'remove', self._w)
+    def grid_info(self):
+        """Return information about the options
+        for positioning this widget in a grid."""
+        words = self.tk.splitlist(
+            self.tk.call('grid', 'info', self._w))
+        dict = {}
+        for i in range(0, len(words), 2):
+            key = words[i][1:]
+            value = words[i+1]
+            if value[:1] == '.':
+                value = self._nametowidget(value)
+            dict[key] = value
+        return dict
+    info = grid_info
+    location = grid_location = Misc.grid_location
+    propagate = grid_propagate = Misc.grid_propagate
+    rowconfigure = grid_rowconfigure = Misc.grid_rowconfigure
+    size = grid_size = Misc.grid_size
+    slaves = grid_slaves = Misc.grid_slaves
+
+class BaseWidget(Misc):
+    """Internal class."""
+    def _setup(self, master, cnf):
+        """Internal function. Sets up information about children."""
+        if _support_default_root:
+            global _default_root
+            if not master:
+                if not _default_root:
+                    _default_root = Tk()
+                master = _default_root
+        self.master = master
+        self.tk = master.tk
+        name = None
+        if cnf.has_key('name'):
+            name = cnf['name']
+            del cnf['name']
+        if not name:
+            name = repr(id(self))
+        self._name = name
+        if master._w=='.':
+            self._w = '.' + name
+        else:
+            self._w = master._w + '.' + name
+        self.children = {}
+        if self.master.children.has_key(self._name):
+            self.master.children[self._name].destroy()
+        self.master.children[self._name] = self
+    def __init__(self, master, widgetName, cnf={}, kw={}, extra=()):
+        """Construct a widget with the parent widget MASTER, a name WIDGETNAME
+        and appropriate options."""
+        if kw:
+            cnf = _cnfmerge((cnf, kw))
+        self.widgetName = widgetName
+        BaseWidget._setup(self, master, cnf)
+        classes = []
+        for k in cnf.keys():
+            if type(k) is ClassType:
+                classes.append((k, cnf[k]))
+                del cnf[k]
+        self.tk.call(
+            (widgetName, self._w) + extra + self._options(cnf))
+        for k, v in classes:
+            k.configure(self, v)
+    def destroy(self):
+        """Destroy this and all descendants widgets."""
+        for c in self.children.values(): c.destroy()
+        self.tk.call('destroy', self._w)
+        if self.master.children.has_key(self._name):
+            del self.master.children[self._name]
+        Misc.destroy(self)
+    def _do(self, name, args=()):
+        # XXX Obsolete -- better use self.tk.call directly!
+        return self.tk.call((self._w, name) + args)
+
+class Widget(BaseWidget, Pack, Place, Grid):
+    """Internal class.
+
+    Base class for a widget which can be positioned with the geometry managers
+    Pack, Place or Grid."""
+    pass
+
+class Toplevel(BaseWidget, Wm):
+    """Toplevel widget, e.g. for dialogs."""
+    def __init__(self, master=None, cnf={}, **kw):
+        """Construct a toplevel widget with the parent MASTER.
+
+        Valid resource names: background, bd, bg, borderwidth, class,
+        colormap, container, cursor, height, highlightbackground,
+        highlightcolor, highlightthickness, menu, relief, screen, takefocus,
+        use, visual, width."""
+        if kw:
+            cnf = _cnfmerge((cnf, kw))
+        extra = ()
+        for wmkey in ['screen', 'class_', 'class', 'visual',
+                  'colormap']:
+            if cnf.has_key(wmkey):
+                val = cnf[wmkey]
+                # TBD: a hack needed because some keys
+                # are not valid as keyword arguments
+                if wmkey[-1] == '_': opt = '-'+wmkey[:-1]
+                else: opt = '-'+wmkey
+                extra = extra + (opt, val)
+                del cnf[wmkey]
+        BaseWidget.__init__(self, master, 'toplevel', cnf, {}, extra)
+        root = self._root()
+        self.iconname(root.iconname())
+        self.title(root.title())
+        self.protocol("WM_DELETE_WINDOW", self.destroy)
+
+class Button(Widget):
+    """Button widget."""
+    def __init__(self, master=None, cnf={}, **kw):
+        """Construct a button widget with the parent MASTER.
+
+        STANDARD OPTIONS
+
+            activebackground, activeforeground, anchor,
+            background, bitmap, borderwidth, cursor,
+            disabledforeground, font, foreground
+            highlightbackground, highlightcolor,
+            highlightthickness, image, justify,
+            padx, pady, relief, repeatdelay,
+            repeatinterval, takefocus, text,
+            textvariable, underline, wraplength
+
+        WIDGET-SPECIFIC OPTIONS
+
+            command, compound, default, height,
+            overrelief, state, width
+        """
+        Widget.__init__(self, master, 'button', cnf, kw)
+
+    def tkButtonEnter(self, *dummy):
+        self.tk.call('tkButtonEnter', self._w)
+
+    def tkButtonLeave(self, *dummy):
+        self.tk.call('tkButtonLeave', self._w)
+
+    def tkButtonDown(self, *dummy):
+        self.tk.call('tkButtonDown', self._w)
+
+    def tkButtonUp(self, *dummy):
+        self.tk.call('tkButtonUp', self._w)
+
+    def tkButtonInvoke(self, *dummy):
+        self.tk.call('tkButtonInvoke', self._w)
+
+    def flash(self):
+        """Flash the button.
+
+        This is accomplished by redisplaying
+        the button several times, alternating between active and
+        normal colors. At the end of the flash the button is left
+        in the same normal/active state as when the command was
+        invoked. This command is ignored if the button's state is
+        disabled.
+        """
+        self.tk.call(self._w, 'flash')
+
+    def invoke(self):
+        """Invoke the command associated with the button.
+
+        The return value is the return value from the command,
+        or an empty string if there is no command associated with
+        the button. This command is ignored if the button's state
+        is disabled.
+        """
+        return self.tk.call(self._w, 'invoke')
+
+# Indices:
+# XXX I don't like these -- take them away
+def AtEnd():
+    return 'end'
+def AtInsert(*args):
+    s = 'insert'
+    for a in args:
+        if a: s = s + (' ' + a)
+    return s
+def AtSelFirst():
+    return 'sel.first'
+def AtSelLast():
+    return 'sel.last'
+def At(x, y=None):
+    if y is None:
+        return '@%r' % (x,)
+    else:
+        return '@%r,%r' % (x, y)
+
+class Canvas(Widget):
+    """Canvas widget to display graphical elements like lines or text."""
+    def __init__(self, master=None, cnf={}, **kw):
+        """Construct a canvas widget with the parent MASTER.
+
+        Valid resource names: background, bd, bg, borderwidth, closeenough,
+        confine, cursor, height, highlightbackground, highlightcolor,
+        highlightthickness, insertbackground, insertborderwidth,
+        insertofftime, insertontime, insertwidth, offset, relief,
+        scrollregion, selectbackground, selectborderwidth, selectforeground,
+        state, takefocus, width, xscrollcommand, xscrollincrement,
+        yscrollcommand, yscrollincrement."""
+        Widget.__init__(self, master, 'canvas', cnf, kw)
+    def addtag(self, *args):
+        """Internal function."""
+        self.tk.call((self._w, 'addtag') + args)
+    def addtag_above(self, newtag, tagOrId):
+        """Add tag NEWTAG to all items above TAGORID."""
+        self.addtag(newtag, 'above', tagOrId)
+    def addtag_all(self, newtag):
+        """Add tag NEWTAG to all items."""
+        self.addtag(newtag, 'all')
+    def addtag_below(self, newtag, tagOrId):
+        """Add tag NEWTAG to all items below TAGORID."""
+        self.addtag(newtag, 'below', tagOrId)
+    def addtag_closest(self, newtag, x, y, halo=None, start=None):
+        """Add tag NEWTAG to item which is closest to pixel at X, Y.
+        If several match take the top-most.
+        All items closer than HALO are considered overlapping (all are
+        closests). If START is specified the next below this tag is taken."""
+        self.addtag(newtag, 'closest', x, y, halo, start)
+    def addtag_enclosed(self, newtag, x1, y1, x2, y2):
+        """Add tag NEWTAG to all items in the rectangle defined
+        by X1,Y1,X2,Y2."""
+        self.addtag(newtag, 'enclosed', x1, y1, x2, y2)
+    def addtag_overlapping(self, newtag, x1, y1, x2, y2):
+        """Add tag NEWTAG to all items which overlap the rectangle
+        defined by X1,Y1,X2,Y2."""
+        self.addtag(newtag, 'overlapping', x1, y1, x2, y2)
+    def addtag_withtag(self, newtag, tagOrId):
+        """Add tag NEWTAG to all items with TAGORID."""
+        self.addtag(newtag, 'withtag', tagOrId)
+    def bbox(self, *args):
+        """Return a tuple of X1,Y1,X2,Y2 coordinates for a rectangle
+        which encloses all items with tags specified as arguments."""
+        return self._getints(
+            self.tk.call((self._w, 'bbox') + args)) or None
+    def tag_unbind(self, tagOrId, sequence, funcid=None):
+        """Unbind for all items with TAGORID for event SEQUENCE  the
+        function identified with FUNCID."""
+        self.tk.call(self._w, 'bind', tagOrId, sequence, '')
+        if funcid:
+            self.deletecommand(funcid)
+    def tag_bind(self, tagOrId, sequence=None, func=None, add=None):
+        """Bind to all items with TAGORID at event SEQUENCE a call to function FUNC.
+
+        An additional boolean parameter ADD specifies whether FUNC will be
+        called additionally to the other bound function or whether it will
+        replace the previous function. See bind for the return value."""
+        return self._bind((self._w, 'bind', tagOrId),
+                  sequence, func, add)
+    def canvasx(self, screenx, gridspacing=None):
+        """Return the canvas x coordinate of pixel position SCREENX rounded
+        to nearest multiple of GRIDSPACING units."""
+        return getdouble(self.tk.call(
+            self._w, 'canvasx', screenx, gridspacing))
+    def canvasy(self, screeny, gridspacing=None):
+        """Return the canvas y coordinate of pixel position SCREENY rounded
+        to nearest multiple of GRIDSPACING units."""
+        return getdouble(self.tk.call(
+            self._w, 'canvasy', screeny, gridspacing))
+    def coords(self, *args):
+        """Return a list of coordinates for the item given in ARGS."""
+        # XXX Should use _flatten on args
+        return map(getdouble,
+                           self.tk.splitlist(
+                   self.tk.call((self._w, 'coords') + args)))
+    def _create(self, itemType, args, kw): # Args: (val, val, ..., cnf={})
+        """Internal function."""
+        args = _flatten(args)
+        cnf = args[-1]
+        if type(cnf) in (DictionaryType, TupleType):
+            args = args[:-1]
+        else:
+            cnf = {}
+        return getint(self.tk.call(
+            self._w, 'create', itemType,
+            *(args + self._options(cnf, kw))))
+    def create_arc(self, *args, **kw):
+        """Create arc shaped region with coordinates x1,y1,x2,y2."""
+        return self._create('arc', args, kw)
+    def create_bitmap(self, *args, **kw):
+        """Create bitmap with coordinates x1,y1."""
+        return self._create('bitmap', args, kw)
+    def create_image(self, *args, **kw):
+        """Create image item with coordinates x1,y1."""
+        return self._create('image', args, kw)
+    def create_line(self, *args, **kw):
+        """Create line with coordinates x1,y1,...,xn,yn."""
+        return self._create('line', args, kw)
+    def create_oval(self, *args, **kw):
+        """Create oval with coordinates x1,y1,x2,y2."""
+        return self._create('oval', args, kw)
+    def create_polygon(self, *args, **kw):
+        """Create polygon with coordinates x1,y1,...,xn,yn."""
+        return self._create('polygon', args, kw)
+    def create_rectangle(self, *args, **kw):
+        """Create rectangle with coordinates x1,y1,x2,y2."""
+        return self._create('rectangle', args, kw)
+    def create_text(self, *args, **kw):
+        """Create text with coordinates x1,y1."""
+        return self._create('text', args, kw)
+    def create_window(self, *args, **kw):
+        """Create window with coordinates x1,y1,x2,y2."""
+        return self._create('window', args, kw)
+    def dchars(self, *args):
+        """Delete characters of text items identified by tag or id in ARGS (possibly
+        several times) from FIRST to LAST character (including)."""
+        self.tk.call((self._w, 'dchars') + args)
+    def delete(self, *args):
+        """Delete items identified by all tag or ids contained in ARGS."""
+        self.tk.call((self._w, 'delete') + args)
+    def dtag(self, *args):
+        """Delete tag or id given as last arguments in ARGS from items
+        identified by first argument in ARGS."""
+        self.tk.call((self._w, 'dtag') + args)
+    def find(self, *args):
+        """Internal function."""
+        return self._getints(
+            self.tk.call((self._w, 'find') + args)) or ()
+    def find_above(self, tagOrId):
+        """Return items above TAGORID."""
+        return self.find('above', tagOrId)
+    def find_all(self):
+        """Return all items."""
+        return self.find('all')
+    def find_below(self, tagOrId):
+        """Return all items below TAGORID."""
+        return self.find('below', tagOrId)
+    def find_closest(self, x, y, halo=None, start=None):
+        """Return item which is closest to pixel at X, Y.
+        If several match take the top-most.
+        All items closer than HALO are considered overlapping (all are
+        closests). If START is specified the next below this tag is taken."""
+        return self.find('closest', x, y, halo, start)
+    def find_enclosed(self, x1, y1, x2, y2):
+        """Return all items in rectangle defined
+        by X1,Y1,X2,Y2."""
+        return self.find('enclosed', x1, y1, x2, y2)
+    def find_overlapping(self, x1, y1, x2, y2):
+        """Return all items which overlap the rectangle
+        defined by X1,Y1,X2,Y2."""
+        return self.find('overlapping', x1, y1, x2, y2)
+    def find_withtag(self, tagOrId):
+        """Return all items with TAGORID."""
+        return self.find('withtag', tagOrId)
+    def focus(self, *args):
+        """Set focus to the first item specified in ARGS."""
+        return self.tk.call((self._w, 'focus') + args)
+    def gettags(self, *args):
+        """Return tags associated with the first item specified in ARGS."""
+        return self.tk.splitlist(
+            self.tk.call((self._w, 'gettags') + args))
+    def icursor(self, *args):
+        """Set cursor at position POS in the item identified by TAGORID.
+        In ARGS TAGORID must be first."""
+        self.tk.call((self._w, 'icursor') + args)
+    def index(self, *args):
+        """Return position of cursor as integer in item specified in ARGS."""
+        return getint(self.tk.call((self._w, 'index') + args))
+    def insert(self, *args):
+        """Insert TEXT in item TAGORID at position POS. ARGS must
+        be TAGORID POS TEXT."""
+        self.tk.call((self._w, 'insert') + args)
+    def itemcget(self, tagOrId, option):
+        """Return the resource value for an OPTION for item TAGORID."""
+        return self.tk.call(
+            (self._w, 'itemcget') + (tagOrId, '-'+option))
+    def itemconfigure(self, tagOrId, cnf=None, **kw):
+        """Configure resources of an item TAGORID.
+
+        The values for resources are specified as keyword
+        arguments. To get an overview about
+        the allowed keyword arguments call the method without arguments.
+        """
+        return self._configure(('itemconfigure', tagOrId), cnf, kw)
+    itemconfig = itemconfigure
+    # lower, tkraise/lift hide Misc.lower, Misc.tkraise/lift,
+    # so the preferred name for them is tag_lower, tag_raise
+    # (similar to tag_bind, and similar to the Text widget);
+    # unfortunately can't delete the old ones yet (maybe in 1.6)
+    def tag_lower(self, *args):
+        """Lower an item TAGORID given in ARGS
+        (optional below another item)."""
+        self.tk.call((self._w, 'lower') + args)
+    lower = tag_lower
+    def move(self, *args):
+        """Move an item TAGORID given in ARGS."""
+        self.tk.call((self._w, 'move') + args)
+    def postscript(self, cnf={}, **kw):
+        """Print the contents of the canvas to a postscript
+        file. Valid options: colormap, colormode, file, fontmap,
+        height, pageanchor, pageheight, pagewidth, pagex, pagey,
+        rotate, witdh, x, y."""
+        return self.tk.call((self._w, 'postscript') +
+                    self._options(cnf, kw))
+    def tag_raise(self, *args):
+        """Raise an item TAGORID given in ARGS
+        (optional above another item)."""
+        self.tk.call((self._w, 'raise') + args)
+    lift = tkraise = tag_raise
+    def scale(self, *args):
+        """Scale item TAGORID with XORIGIN, YORIGIN, XSCALE, YSCALE."""
+        self.tk.call((self._w, 'scale') + args)
+    def scan_mark(self, x, y):
+        """Remember the current X, Y coordinates."""
+        self.tk.call(self._w, 'scan', 'mark', x, y)
+    def scan_dragto(self, x, y, gain=10):
+        """Adjust the view of the canvas to GAIN times the
+        difference between X and Y and the coordinates given in
+        scan_mark."""
+        self.tk.call(self._w, 'scan', 'dragto', x, y, gain)
+    def select_adjust(self, tagOrId, index):
+        """Adjust the end of the selection near the cursor of an item TAGORID to index."""
+        self.tk.call(self._w, 'select', 'adjust', tagOrId, index)
+    def select_clear(self):
+        """Clear the selection if it is in this widget."""
+        self.tk.call(self._w, 'select', 'clear')
+    def select_from(self, tagOrId, index):
+        """Set the fixed end of a selection in item TAGORID to INDEX."""
+        self.tk.call(self._w, 'select', 'from', tagOrId, index)
+    def select_item(self):
+        """Return the item which has the selection."""
+        return self.tk.call(self._w, 'select', 'item') or None
+    def select_to(self, tagOrId, index):
+        """Set the variable end of a selection in item TAGORID to INDEX."""
+        self.tk.call(self._w, 'select', 'to', tagOrId, index)
+    def type(self, tagOrId):
+        """Return the type of the item TAGORID."""
+        return self.tk.call(self._w, 'type', tagOrId) or None
+    def xview(self, *args):
+        """Query and change horizontal position of the view."""
+        if not args:
+            return self._getdoubles(self.tk.call(self._w, 'xview'))
+        self.tk.call((self._w, 'xview') + args)
+    def xview_moveto(self, fraction):
+        """Adjusts the view in the window so that FRACTION of the
+        total width of the canvas is off-screen to the left."""
+        self.tk.call(self._w, 'xview', 'moveto', fraction)
+    def xview_scroll(self, number, what):
+        """Shift the x-view according to NUMBER which is measured in "units" or "pages" (WHAT)."""
+        self.tk.call(self._w, 'xview', 'scroll', number, what)
+    def yview(self, *args):
+        """Query and change vertical position of the view."""
+        if not args:
+            return self._getdoubles(self.tk.call(self._w, 'yview'))
+        self.tk.call((self._w, 'yview') + args)
+    def yview_moveto(self, fraction):
+        """Adjusts the view in the window so that FRACTION of the
+        total height of the canvas is off-screen to the top."""
+        self.tk.call(self._w, 'yview', 'moveto', fraction)
+    def yview_scroll(self, number, what):
+        """Shift the y-view according to NUMBER which is measured in "units" or "pages" (WHAT)."""
+        self.tk.call(self._w, 'yview', 'scroll', number, what)
+
+class Checkbutton(Widget):
+    """Checkbutton widget which is either in on- or off-state."""
+    def __init__(self, master=None, cnf={}, **kw):
+        """Construct a checkbutton widget with the parent MASTER.
+
+        Valid resource names: activebackground, activeforeground, anchor,
+        background, bd, bg, bitmap, borderwidth, command, cursor,
+        disabledforeground, fg, font, foreground, height,
+        highlightbackground, highlightcolor, highlightthickness, image,
+        indicatoron, justify, offvalue, onvalue, padx, pady, relief,
+        selectcolor, selectimage, state, takefocus, text, textvariable,
+        underline, variable, width, wraplength."""
+        Widget.__init__(self, master, 'checkbutton', cnf, kw)
+    def deselect(self):
+        """Put the button in off-state."""
+        self.tk.call(self._w, 'deselect')
+    def flash(self):
+        """Flash the button."""
+        self.tk.call(self._w, 'flash')
+    def invoke(self):
+        """Toggle the button and invoke a command if given as resource."""
+        return self.tk.call(self._w, 'invoke')
+    def select(self):
+        """Put the button in on-state."""
+        self.tk.call(self._w, 'select')
+    def toggle(self):
+        """Toggle the button."""
+        self.tk.call(self._w, 'toggle')
+
+class Entry(Widget):
+    """Entry widget which allows to display simple text."""
+    def __init__(self, master=None, cnf={}, **kw):
+        """Construct an entry widget with the parent MASTER.
+
+        Valid resource names: background, bd, bg, borderwidth, cursor,
+        exportselection, fg, font, foreground, highlightbackground,
+        highlightcolor, highlightthickness, insertbackground,
+        insertborderwidth, insertofftime, insertontime, insertwidth,
+        invalidcommand, invcmd, justify, relief, selectbackground,
+        selectborderwidth, selectforeground, show, state, takefocus,
+        textvariable, validate, validatecommand, vcmd, width,
+        xscrollcommand."""
+        Widget.__init__(self, master, 'entry', cnf, kw)
+    def delete(self, first, last=None):
+        """Delete text from FIRST to LAST (not included)."""
+        self.tk.call(self._w, 'delete', first, last)
+    def get(self):
+        """Return the text."""
+        return self.tk.call(self._w, 'get')
+    def icursor(self, index):
+        """Insert cursor at INDEX."""
+        self.tk.call(self._w, 'icursor', index)
+    def index(self, index):
+        """Return position of cursor."""
+        return getint(self.tk.call(
+            self._w, 'index', index))
+    def insert(self, index, string):
+        """Insert STRING at INDEX."""
+        self.tk.call(self._w, 'insert', index, string)
+    def scan_mark(self, x):
+        """Remember the current X, Y coordinates."""
+        self.tk.call(self._w, 'scan', 'mark', x)
+    def scan_dragto(self, x):
+        """Adjust the view of the canvas to 10 times the
+        difference between X and Y and the coordinates given in
+        scan_mark."""
+        self.tk.call(self._w, 'scan', 'dragto', x)
+    def selection_adjust(self, index):
+        """Adjust the end of the selection near the cursor to INDEX."""
+        self.tk.call(self._w, 'selection', 'adjust', index)
+    select_adjust = selection_adjust
+    def selection_clear(self):
+        """Clear the selection if it is in this widget."""
+        self.tk.call(self._w, 'selection', 'clear')
+    select_clear = selection_clear
+    def selection_from(self, index):
+        """Set the fixed end of a selection to INDEX."""
+        self.tk.call(self._w, 'selection', 'from', index)
+    select_from = selection_from
+    def selection_present(self):
+        """Return whether the widget has the selection."""
+        return self.tk.getboolean(
+            self.tk.call(self._w, 'selection', 'present'))
+    select_present = selection_present
+    def selection_range(self, start, end):
+        """Set the selection from START to END (not included)."""
+        self.tk.call(self._w, 'selection', 'range', start, end)
+    select_range = selection_range
+    def selection_to(self, index):
+        """Set the variable end of a selection to INDEX."""
+        self.tk.call(self._w, 'selection', 'to', index)
+    select_to = selection_to
+    def xview(self, index):
+        """Query and change horizontal position of the view."""
+        self.tk.call(self._w, 'xview', index)
+    def xview_moveto(self, fraction):
+        """Adjust the view in the window so that FRACTION of the
+        total width of the entry is off-screen to the left."""
+        self.tk.call(self._w, 'xview', 'moveto', fraction)
+    def xview_scroll(self, number, what):
+        """Shift the x-view according to NUMBER which is measured in "units" or "pages" (WHAT)."""
+        self.tk.call(self._w, 'xview', 'scroll', number, what)
+
+class Frame(Widget):
+    """Frame widget which may contain other widgets and can have a 3D border."""
+    def __init__(self, master=None, cnf={}, **kw):
+        """Construct a frame widget with the parent MASTER.
+
+        Valid resource names: background, bd, bg, borderwidth, class,
+        colormap, container, cursor, height, highlightbackground,
+        highlightcolor, highlightthickness, relief, takefocus, visual, width."""
+        cnf = _cnfmerge((cnf, kw))
+        extra = ()
+        if cnf.has_key('class_'):
+            extra = ('-class', cnf['class_'])
+            del cnf['class_']
+        elif cnf.has_key('class'):
+            extra = ('-class', cnf['class'])
+            del cnf['class']
+        Widget.__init__(self, master, 'frame', cnf, {}, extra)
+
+class Label(Widget):
+    """Label widget which can display text and bitmaps."""
+    def __init__(self, master=None, cnf={}, **kw):
+        """Construct a label widget with the parent MASTER.
+
+        STANDARD OPTIONS
+
+            activebackground, activeforeground, anchor,
+            background, bitmap, borderwidth, cursor,
+            disabledforeground, font, foreground,
+            highlightbackground, highlightcolor,
+            highlightthickness, image, justify,
+            padx, pady, relief, takefocus, text,
+            textvariable, underline, wraplength
+
+        WIDGET-SPECIFIC OPTIONS
+
+            height, state, width
+
+        """
+        Widget.__init__(self, master, 'label', cnf, kw)
+
+class Listbox(Widget):
+    """Listbox widget which can display a list of strings."""
+    def __init__(self, master=None, cnf={}, **kw):
+        """Construct a listbox widget with the parent MASTER.
+
+        Valid resource names: background, bd, bg, borderwidth, cursor,
+        exportselection, fg, font, foreground, height, highlightbackground,
+        highlightcolor, highlightthickness, relief, selectbackground,
+        selectborderwidth, selectforeground, selectmode, setgrid, takefocus,
+        width, xscrollcommand, yscrollcommand, listvariable."""
+        Widget.__init__(self, master, 'listbox', cnf, kw)
+    def activate(self, index):
+        """Activate item identified by INDEX."""
+        self.tk.call(self._w, 'activate', index)
+    def bbox(self, *args):
+        """Return a tuple of X1,Y1,X2,Y2 coordinates for a rectangle
+        which encloses the item identified by index in ARGS."""
+        return self._getints(
+            self.tk.call((self._w, 'bbox') + args)) or None
+    def curselection(self):
+        """Return list of indices of currently selected item."""
+        # XXX Ought to apply self._getints()...
+        return self.tk.splitlist(self.tk.call(
+            self._w, 'curselection'))
+    def delete(self, first, last=None):
+        """Delete items from FIRST to LAST (not included)."""
+        self.tk.call(self._w, 'delete', first, last)
+    def get(self, first, last=None):
+        """Get list of items from FIRST to LAST (not included)."""
+        if last:
+            return self.tk.splitlist(self.tk.call(
+                self._w, 'get', first, last))
+        else:
+            return self.tk.call(self._w, 'get', first)
+    def index(self, index):
+        """Return index of item identified with INDEX."""
+        i = self.tk.call(self._w, 'index', index)
+        if i == 'none': return None
+        return getint(i)
+    def insert(self, index, *elements):
+        """Insert ELEMENTS at INDEX."""
+        self.tk.call((self._w, 'insert', index) + elements)
+    def nearest(self, y):
+        """Get index of item which is nearest to y coordinate Y."""
+        return getint(self.tk.call(
+            self._w, 'nearest', y))
+    def scan_mark(self, x, y):
+        """Remember the current X, Y coordinates."""
+        self.tk.call(self._w, 'scan', 'mark', x, y)
+    def scan_dragto(self, x, y):
+        """Adjust the view of the listbox to 10 times the
+        difference between X and Y and the coordinates given in
+        scan_mark."""
+        self.tk.call(self._w, 'scan', 'dragto', x, y)
+    def see(self, index):
+        """Scroll such that INDEX is visible."""
+        self.tk.call(self._w, 'see', index)
+    def selection_anchor(self, index):
+        """Set the fixed end oft the selection to INDEX."""
+        self.tk.call(self._w, 'selection', 'anchor', index)
+    select_anchor = selection_anchor
+    def selection_clear(self, first, last=None):
+        """Clear the selection from FIRST to LAST (not included)."""
+        self.tk.call(self._w,
+                 'selection', 'clear', first, last)
+    select_clear = selection_clear
+    def selection_includes(self, index):
+        """Return 1 if INDEX is part of the selection."""
+        return self.tk.getboolean(self.tk.call(
+            self._w, 'selection', 'includes', index))
+    select_includes = selection_includes
+    def selection_set(self, first, last=None):
+        """Set the selection from FIRST to LAST (not included) without
+        changing the currently selected elements."""
+        self.tk.call(self._w, 'selection', 'set', first, last)
+    select_set = selection_set
+    def size(self):
+        """Return the number of elements in the listbox."""
+        return getint(self.tk.call(self._w, 'size'))
+    def xview(self, *what):
+        """Query and change horizontal position of the view."""
+        if not what:
+            return self._getdoubles(self.tk.call(self._w, 'xview'))
+        self.tk.call((self._w, 'xview') + what)
+    def xview_moveto(self, fraction):
+        """Adjust the view in the window so that FRACTION of the
+        total width of the entry is off-screen to the left."""
+        self.tk.call(self._w, 'xview', 'moveto', fraction)
+    def xview_scroll(self, number, what):
+        """Shift the x-view according to NUMBER which is measured in "units" or "pages" (WHAT)."""
+        self.tk.call(self._w, 'xview', 'scroll', number, what)
+    def yview(self, *what):
+        """Query and change vertical position of the view."""
+        if not what:
+            return self._getdoubles(self.tk.call(self._w, 'yview'))
+        self.tk.call((self._w, 'yview') + what)
+    def yview_moveto(self, fraction):
+        """Adjust the view in the window so that FRACTION of the
+        total width of the entry is off-screen to the top."""
+        self.tk.call(self._w, 'yview', 'moveto', fraction)
+    def yview_scroll(self, number, what):
+        """Shift the y-view according to NUMBER which is measured in "units" or "pages" (WHAT)."""
+        self.tk.call(self._w, 'yview', 'scroll', number, what)
+    def itemcget(self, index, option):
+        """Return the resource value for an ITEM and an OPTION."""
+        return self.tk.call(
+            (self._w, 'itemcget') + (index, '-'+option))
+    def itemconfigure(self, index, cnf=None, **kw):
+        """Configure resources of an ITEM.
+
+        The values for resources are specified as keyword arguments.
+        To get an overview about the allowed keyword arguments
+        call the method without arguments.
+        Valid resource names: background, bg, foreground, fg,
+        selectbackground, selectforeground."""
+        return self._configure(('itemconfigure', index), cnf, kw)
+    itemconfig = itemconfigure
+
+class Menu(Widget):
+    """Menu widget which allows to display menu bars, pull-down menus and pop-up menus."""
+    def __init__(self, master=None, cnf={}, **kw):
+        """Construct menu widget with the parent MASTER.
+
+        Valid resource names: activebackground, activeborderwidth,
+        activeforeground, background, bd, bg, borderwidth, cursor,
+        disabledforeground, fg, font, foreground, postcommand, relief,
+        selectcolor, takefocus, tearoff, tearoffcommand, title, type."""
+        Widget.__init__(self, master, 'menu', cnf, kw)
+    def tk_bindForTraversal(self):
+        pass # obsolete since Tk 4.0
+    def tk_mbPost(self):
+        self.tk.call('tk_mbPost', self._w)
+    def tk_mbUnpost(self):
+        self.tk.call('tk_mbUnpost')
+    def tk_traverseToMenu(self, char):
+        self.tk.call('tk_traverseToMenu', self._w, char)
+    def tk_traverseWithinMenu(self, char):
+        self.tk.call('tk_traverseWithinMenu', self._w, char)
+    def tk_getMenuButtons(self):
+        return self.tk.call('tk_getMenuButtons', self._w)
+    def tk_nextMenu(self, count):
+        self.tk.call('tk_nextMenu', count)
+    def tk_nextMenuEntry(self, count):
+        self.tk.call('tk_nextMenuEntry', count)
+    def tk_invokeMenu(self):
+        self.tk.call('tk_invokeMenu', self._w)
+    def tk_firstMenu(self):
+        self.tk.call('tk_firstMenu', self._w)
+    def tk_mbButtonDown(self):
+        self.tk.call('tk_mbButtonDown', self._w)
+    def tk_popup(self, x, y, entry=""):
+        """Post the menu at position X,Y with entry ENTRY."""
+        self.tk.call('tk_popup', self._w, x, y, entry)
+    def activate(self, index):
+        """Activate entry at INDEX."""
+        self.tk.call(self._w, 'activate', index)
+    def add(self, itemType, cnf={}, **kw):
+        """Internal function."""
+        self.tk.call((self._w, 'add', itemType) +
+                 self._options(cnf, kw))
+    def add_cascade(self, cnf={}, **kw):
+        """Add hierarchical menu item."""
+        self.add('cascade', cnf or kw)
+    def add_checkbutton(self, cnf={}, **kw):
+        """Add checkbutton menu item."""
+        self.add('checkbutton', cnf or kw)
+    def add_command(self, cnf={}, **kw):
+        """Add command menu item."""
+        self.add('command', cnf or kw)
+    def add_radiobutton(self, cnf={}, **kw):
+        """Addd radio menu item."""
+        self.add('radiobutton', cnf or kw)
+    def add_separator(self, cnf={}, **kw):
+        """Add separator."""
+        self.add('separator', cnf or kw)
+    def insert(self, index, itemType, cnf={}, **kw):
+        """Internal function."""
+        self.tk.call((self._w, 'insert', index, itemType) +
+                 self._options(cnf, kw))
+    def insert_cascade(self, index, cnf={}, **kw):
+        """Add hierarchical menu item at INDEX."""
+        self.insert(index, 'cascade', cnf or kw)
+    def insert_checkbutton(self, index, cnf={}, **kw):
+        """Add checkbutton menu item at INDEX."""
+        self.insert(index, 'checkbutton', cnf or kw)
+    def insert_command(self, index, cnf={}, **kw):
+        """Add command menu item at INDEX."""
+        self.insert(index, 'command', cnf or kw)
+    def insert_radiobutton(self, index, cnf={}, **kw):
+        """Addd radio menu item at INDEX."""
+        self.insert(index, 'radiobutton', cnf or kw)
+    def insert_separator(self, index, cnf={}, **kw):
+        """Add separator at INDEX."""
+        self.insert(index, 'separator', cnf or kw)
+    def delete(self, index1, index2=None):
+        """Delete menu items between INDEX1 and INDEX2 (not included)."""
+        self.tk.call(self._w, 'delete', index1, index2)
+    def entrycget(self, index, option):
+        """Return the resource value of an menu item for OPTION at INDEX."""
+        return self.tk.call(self._w, 'entrycget', index, '-' + option)
+    def entryconfigure(self, index, cnf=None, **kw):
+        """Configure a menu item at INDEX."""
+        return self._configure(('entryconfigure', index), cnf, kw)
+    entryconfig = entryconfigure
+    def index(self, index):
+        """Return the index of a menu item identified by INDEX."""
+        i = self.tk.call(self._w, 'index', index)
+        if i == 'none': return None
+        return getint(i)
+    def invoke(self, index):
+        """Invoke a menu item identified by INDEX and execute
+        the associated command."""
+        return self.tk.call(self._w, 'invoke', index)
+    def post(self, x, y):
+        """Display a menu at position X,Y."""
+        self.tk.call(self._w, 'post', x, y)
+    def type(self, index):
+        """Return the type of the menu item at INDEX."""
+        return self.tk.call(self._w, 'type', index)
+    def unpost(self):
+        """Unmap a menu."""
+        self.tk.call(self._w, 'unpost')
+    def yposition(self, index):
+        """Return the y-position of the topmost pixel of the menu item at INDEX."""
+        return getint(self.tk.call(
+            self._w, 'yposition', index))
+
+class Menubutton(Widget):
+    """Menubutton widget, obsolete since Tk8.0."""
+    def __init__(self, master=None, cnf={}, **kw):
+        Widget.__init__(self, master, 'menubutton', cnf, kw)
+
+class Message(Widget):
+    """Message widget to display multiline text. Obsolete since Label does it too."""
+    def __init__(self, master=None, cnf={}, **kw):
+        Widget.__init__(self, master, 'message', cnf, kw)
+
+class Radiobutton(Widget):
+    """Radiobutton widget which shows only one of several buttons in on-state."""
+    def __init__(self, master=None, cnf={}, **kw):
+        """Construct a radiobutton widget with the parent MASTER.
+
+        Valid resource names: activebackground, activeforeground, anchor,
+        background, bd, bg, bitmap, borderwidth, command, cursor,
+        disabledforeground, fg, font, foreground, height,
+        highlightbackground, highlightcolor, highlightthickness, image,
+        indicatoron, justify, padx, pady, relief, selectcolor, selectimage,
+        state, takefocus, text, textvariable, underline, value, variable,
+        width, wraplength."""
+        Widget.__init__(self, master, 'radiobutton', cnf, kw)
+    def deselect(self):
+        """Put the button in off-state."""
+
+        self.tk.call(self._w, 'deselect')
+    def flash(self):
+        """Flash the button."""
+        self.tk.call(self._w, 'flash')
+    def invoke(self):
+        """Toggle the button and invoke a command if given as resource."""
+        return self.tk.call(self._w, 'invoke')
+    def select(self):
+        """Put the button in on-state."""
+        self.tk.call(self._w, 'select')
+
+class Scale(Widget):
+    """Scale widget which can display a numerical scale."""
+    def __init__(self, master=None, cnf={}, **kw):
+        """Construct a scale widget with the parent MASTER.
+
+        Valid resource names: activebackground, background, bigincrement, bd,
+        bg, borderwidth, command, cursor, digits, fg, font, foreground, from,
+        highlightbackground, highlightcolor, highlightthickness, label,
+        length, orient, relief, repeatdelay, repeatinterval, resolution,
+        showvalue, sliderlength, sliderrelief, state, takefocus,
+        tickinterval, to, troughcolor, variable, width."""
+        Widget.__init__(self, master, 'scale', cnf, kw)
+    def get(self):
+        """Get the current value as integer or float."""
+        value = self.tk.call(self._w, 'get')
+        try:
+            return getint(value)
+        except ValueError:
+            return getdouble(value)
+    def set(self, value):
+        """Set the value to VALUE."""
+        self.tk.call(self._w, 'set', value)
+    def coords(self, value=None):
+        """Return a tuple (X,Y) of the point along the centerline of the
+        trough that corresponds to VALUE or the current value if None is
+        given."""
+
+        return self._getints(self.tk.call(self._w, 'coords', value))
+    def identify(self, x, y):
+        """Return where the point X,Y lies. Valid return values are "slider",
+        "though1" and "though2"."""
+        return self.tk.call(self._w, 'identify', x, y)
+
+class Scrollbar(Widget):
+    """Scrollbar widget which displays a slider at a certain position."""
+    def __init__(self, master=None, cnf={}, **kw):
+        """Construct a scrollbar widget with the parent MASTER.
+
+        Valid resource names: activebackground, activerelief,
+        background, bd, bg, borderwidth, command, cursor,
+        elementborderwidth, highlightbackground,
+        highlightcolor, highlightthickness, jump, orient,
+        relief, repeatdelay, repeatinterval, takefocus,
+        troughcolor, width."""
+        Widget.__init__(self, master, 'scrollbar', cnf, kw)
+    def activate(self, index):
+        """Display the element at INDEX with activebackground and activerelief.
+        INDEX can be "arrow1","slider" or "arrow2"."""
+        self.tk.call(self._w, 'activate', index)
+    def delta(self, deltax, deltay):
+        """Return the fractional change of the scrollbar setting if it
+        would be moved by DELTAX or DELTAY pixels."""
+        return getdouble(
+            self.tk.call(self._w, 'delta', deltax, deltay))
+    def fraction(self, x, y):
+        """Return the fractional value which corresponds to a slider
+        position of X,Y."""
+        return getdouble(self.tk.call(self._w, 'fraction', x, y))
+    def identify(self, x, y):
+        """Return the element under position X,Y as one of
+        "arrow1","slider","arrow2" or ""."""
+        return self.tk.call(self._w, 'identify', x, y)
+    def get(self):
+        """Return the current fractional values (upper and lower end)
+        of the slider position."""
+        return self._getdoubles(self.tk.call(self._w, 'get'))
+    def set(self, *args):
+        """Set the fractional values of the slider position (upper and
+        lower ends as value between 0 and 1)."""
+        self.tk.call((self._w, 'set') + args)
+
+
+
+class Text(Widget):
+    """Text widget which can display text in various forms."""
+    def __init__(self, master=None, cnf={}, **kw):
+        """Construct a text widget with the parent MASTER.
+
+        STANDARD OPTIONS
+
+            background, borderwidth, cursor,
+            exportselection, font, foreground,
+            highlightbackground, highlightcolor,
+            highlightthickness, insertbackground,
+            insertborderwidth, insertofftime,
+            insertontime, insertwidth, padx, pady,
+            relief, selectbackground,
+            selectborderwidth, selectforeground,
+            setgrid, takefocus,
+            xscrollcommand, yscrollcommand,
+
+        WIDGET-SPECIFIC OPTIONS
+
+            autoseparators, height, maxundo,
+            spacing1, spacing2, spacing3,
+            state, tabs, undo, width, wrap,
+
+        """
+        Widget.__init__(self, master, 'text', cnf, kw)
+    def bbox(self, *args):
+        """Return a tuple of (x,y,width,height) which gives the bounding
+        box of the visible part of the character at the index in ARGS."""
+        return self._getints(
+            self.tk.call((self._w, 'bbox') + args)) or None
+    def tk_textSelectTo(self, index):
+        self.tk.call('tk_textSelectTo', self._w, index)
+    def tk_textBackspace(self):
+        self.tk.call('tk_textBackspace', self._w)
+    def tk_textIndexCloser(self, a, b, c):
+        self.tk.call('tk_textIndexCloser', self._w, a, b, c)
+    def tk_textResetAnchor(self, index):
+        self.tk.call('tk_textResetAnchor', self._w, index)
+    def compare(self, index1, op, index2):
+        """Return whether between index INDEX1 and index INDEX2 the
+        relation OP is satisfied. OP is one of <, <=, ==, >=, >, or !=."""
+        return self.tk.getboolean(self.tk.call(
+            self._w, 'compare', index1, op, index2))
+    def debug(self, boolean=None):
+        """Turn on the internal consistency checks of the B-Tree inside the text
+        widget according to BOOLEAN."""
+        return self.tk.getboolean(self.tk.call(
+            self._w, 'debug', boolean))
+    def delete(self, index1, index2=None):
+        """Delete the characters between INDEX1 and INDEX2 (not included)."""
+        self.tk.call(self._w, 'delete', index1, index2)
+    def dlineinfo(self, index):
+        """Return tuple (x,y,width,height,baseline) giving the bounding box
+        and baseline position of the visible part of the line containing
+        the character at INDEX."""
+        return self._getints(self.tk.call(self._w, 'dlineinfo', index))
+    def dump(self, index1, index2=None, command=None, **kw):
+        """Return the contents of the widget between index1 and index2.
+
+        The type of contents returned in filtered based on the keyword
+        parameters; if 'all', 'image', 'mark', 'tag', 'text', or 'window' are
+        given and true, then the corresponding items are returned. The result
+        is a list of triples of the form (key, value, index). If none of the
+        keywords are true then 'all' is used by default.
+
+        If the 'command' argument is given, it is called once for each element
+        of the list of triples, with the values of each triple serving as the
+        arguments to the function. In this case the list is not returned."""
+        args = []
+        func_name = None
+        result = None
+        if not command:
+            # Never call the dump command without the -command flag, since the
+            # output could involve Tcl quoting and would be a pain to parse
+            # right. Instead just set the command to build a list of triples
+            # as if we had done the parsing.
+            result = []
+            def append_triple(key, value, index, result=result):
+                result.append((key, value, index))
+            command = append_triple
+        try:
+            if not isinstance(command, str):
+                func_name = command = self._register(command)
+            args += ["-command", command]
+            for key in kw:
+                if kw[key]: args.append("-" + key)
+            args.append(index1)
+            if index2:
+                args.append(index2)
+            self.tk.call(self._w, "dump", *args)
+            return result
+        finally:
+            if func_name:
+                self.deletecommand(func_name)
+
+    ## new in tk8.4
+    def edit(self, *args):
+        """Internal method
+
+        This method controls the undo mechanism and
+        the modified flag. The exact behavior of the
+        command depends on the option argument that
+        follows the edit argument. The following forms
+        of the command are currently supported:
+
+        edit_modified, edit_redo, edit_reset, edit_separator
+        and edit_undo
+
+        """
+        return self.tk.call(self._w, 'edit', *args)
+
+    def edit_modified(self, arg=None):
+        """Get or Set the modified flag
+
+        If arg is not specified, returns the modified
+        flag of the widget. The insert, delete, edit undo and
+        edit redo commands or the user can set or clear the
+        modified flag. If boolean is specified, sets the
+        modified flag of the widget to arg.
+        """
+        return self.edit("modified", arg)
+
+    def edit_redo(self):
+        """Redo the last undone edit
+
+        When the undo option is true, reapplies the last
+        undone edits provided no other edits were done since
+        then. Generates an error when the redo stack is empty.
+        Does nothing when the undo option is false.
+        """
+        return self.edit("redo")
+
+    def edit_reset(self):
+        """Clears the undo and redo stacks
+        """
+        return self.edit("reset")
+
+    def edit_separator(self):
+        """Inserts a separator (boundary) on the undo stack.
+
+        Does nothing when the undo option is false
+        """
+        return self.edit("separator")
+
+    def edit_undo(self):
+        """Undoes the last edit action
+
+        If the undo option is true. An edit action is defined
+        as all the insert and delete commands that are recorded
+        on the undo stack in between two separators. Generates
+        an error when the undo stack is empty. Does nothing
+        when the undo option is false
+        """
+        return self.edit("undo")
+
+    def get(self, index1, index2=None):
+        """Return the text from INDEX1 to INDEX2 (not included)."""
+        return self.tk.call(self._w, 'get', index1, index2)
+    # (Image commands are new in 8.0)
+    def image_cget(self, index, option):
+        """Return the value of OPTION of an embedded image at INDEX."""
+        if option[:1] != "-":
+            option = "-" + option
+        if option[-1:] == "_":
+            option = option[:-1]
+        return self.tk.call(self._w, "image", "cget", index, option)
+    def image_configure(self, index, cnf=None, **kw):
+        """Configure an embedded image at INDEX."""
+        return self._configure(('image', 'configure', index), cnf, kw)
+    def image_create(self, index, cnf={}, **kw):
+        """Create an embedded image at INDEX."""
+        return self.tk.call(
+                 self._w, "image", "create", index,
+                 *self._options(cnf, kw))
+    def image_names(self):
+        """Return all names of embedded images in this widget."""
+        return self.tk.call(self._w, "image", "names")
+    def index(self, index):
+        """Return the index in the form line.char for INDEX."""
+        return str(self.tk.call(self._w, 'index', index))
+    def insert(self, index, chars, *args):
+        """Insert CHARS before the characters at INDEX. An additional
+        tag can be given in ARGS. Additional CHARS and tags can follow in ARGS."""
+        self.tk.call((self._w, 'insert', index, chars) + args)
+    def mark_gravity(self, markName, direction=None):
+        """Change the gravity of a mark MARKNAME to DIRECTION (LEFT or RIGHT).
+        Return the current value if None is given for DIRECTION."""
+        return self.tk.call(
+            (self._w, 'mark', 'gravity', markName, direction))
+    def mark_names(self):
+        """Return all mark names."""
+        return self.tk.splitlist(self.tk.call(
+            self._w, 'mark', 'names'))
+    def mark_set(self, markName, index):
+        """Set mark MARKNAME before the character at INDEX."""
+        self.tk.call(self._w, 'mark', 'set', markName, index)
+    def mark_unset(self, *markNames):
+        """Delete all marks in MARKNAMES."""
+        self.tk.call((self._w, 'mark', 'unset') + markNames)
+    def mark_next(self, index):
+        """Return the name of the next mark after INDEX."""
+        return self.tk.call(self._w, 'mark', 'next', index) or None
+    def mark_previous(self, index):
+        """Return the name of the previous mark before INDEX."""
+        return self.tk.call(self._w, 'mark', 'previous', index) or None
+    def scan_mark(self, x, y):
+        """Remember the current X, Y coordinates."""
+        self.tk.call(self._w, 'scan', 'mark', x, y)
+    def scan_dragto(self, x, y):
+        """Adjust the view of the text to 10 times the
+        difference between X and Y and the coordinates given in
+        scan_mark."""
+        self.tk.call(self._w, 'scan', 'dragto', x, y)
+    def search(self, pattern, index, stopindex=None,
+           forwards=None, backwards=None, exact=None,
+           regexp=None, nocase=None, count=None, elide=None):
+        """Search PATTERN beginning from INDEX until STOPINDEX.
+        Return the index of the first character of a match or an empty string."""
+        args = [self._w, 'search']
+        if forwards: args.append('-forwards')
+        if backwards: args.append('-backwards')
+        if exact: args.append('-exact')
+        if regexp: args.append('-regexp')
+        if nocase: args.append('-nocase')
+        if elide: args.append('-elide')
+        if count: args.append('-count'); args.append(count)
+        if pattern[0] == '-': args.append('--')
+        args.append(pattern)
+        args.append(index)
+        if stopindex: args.append(stopindex)
+        return self.tk.call(tuple(args))
+    def see(self, index):
+        """Scroll such that the character at INDEX is visible."""
+        self.tk.call(self._w, 'see', index)
+    def tag_add(self, tagName, index1, *args):
+        """Add tag TAGNAME to all characters between INDEX1 and index2 in ARGS.
+        Additional pairs of indices may follow in ARGS."""
+        self.tk.call(
+            (self._w, 'tag', 'add', tagName, index1) + args)
+    def tag_unbind(self, tagName, sequence, funcid=None):
+        """Unbind for all characters with TAGNAME for event SEQUENCE  the
+        function identified with FUNCID."""
+        self.tk.call(self._w, 'tag', 'bind', tagName, sequence, '')
+        if funcid:
+            self.deletecommand(funcid)
+    def tag_bind(self, tagName, sequence, func, add=None):
+        """Bind to all characters with TAGNAME at event SEQUENCE a call to function FUNC.
+
+        An additional boolean parameter ADD specifies whether FUNC will be
+        called additionally to the other bound function or whether it will
+        replace the previous function. See bind for the return value."""
+        return self._bind((self._w, 'tag', 'bind', tagName),
+                  sequence, func, add)
+    def tag_cget(self, tagName, option):
+        """Return the value of OPTION for tag TAGNAME."""
+        if option[:1] != '-':
+            option = '-' + option
+        if option[-1:] == '_':
+            option = option[:-1]
+        return self.tk.call(self._w, 'tag', 'cget', tagName, option)
+    def tag_configure(self, tagName, cnf=None, **kw):
+        """Configure a tag TAGNAME."""
+        return self._configure(('tag', 'configure', tagName), cnf, kw)
+    tag_config = tag_configure
+    def tag_delete(self, *tagNames):
+        """Delete all tags in TAGNAMES."""
+        self.tk.call((self._w, 'tag', 'delete') + tagNames)
+    def tag_lower(self, tagName, belowThis=None):
+        """Change the priority of tag TAGNAME such that it is lower
+        than the priority of BELOWTHIS."""
+        self.tk.call(self._w, 'tag', 'lower', tagName, belowThis)
+    def tag_names(self, index=None):
+        """Return a list of all tag names."""
+        return self.tk.splitlist(
+            self.tk.call(self._w, 'tag', 'names', index))
+    def tag_nextrange(self, tagName, index1, index2=None):
+        """Return a list of start and end index for the first sequence of
+        characters between INDEX1 and INDEX2 which all have tag TAGNAME.
+        The text is searched forward from INDEX1."""
+        return self.tk.splitlist(self.tk.call(
+            self._w, 'tag', 'nextrange', tagName, index1, index2))
+    def tag_prevrange(self, tagName, index1, index2=None):
+        """Return a list of start and end index for the first sequence of
+        characters between INDEX1 and INDEX2 which all have tag TAGNAME.
+        The text is searched backwards from INDEX1."""
+        return self.tk.splitlist(self.tk.call(
+            self._w, 'tag', 'prevrange', tagName, index1, index2))
+    def tag_raise(self, tagName, aboveThis=None):
+        """Change the priority of tag TAGNAME such that it is higher
+        than the priority of ABOVETHIS."""
+        self.tk.call(
+            self._w, 'tag', 'raise', tagName, aboveThis)
+    def tag_ranges(self, tagName):
+        """Return a list of ranges of text which have tag TAGNAME."""
+        return self.tk.splitlist(self.tk.call(
+            self._w, 'tag', 'ranges', tagName))
+    def tag_remove(self, tagName, index1, index2=None):
+        """Remove tag TAGNAME from all characters between INDEX1 and INDEX2."""
+        self.tk.call(
+            self._w, 'tag', 'remove', tagName, index1, index2)
+    def window_cget(self, index, option):
+        """Return the value of OPTION of an embedded window at INDEX."""
+        if option[:1] != '-':
+            option = '-' + option
+        if option[-1:] == '_':
+            option = option[:-1]
+        return self.tk.call(self._w, 'window', 'cget', index, option)
+    def window_configure(self, index, cnf=None, **kw):
+        """Configure an embedded window at INDEX."""
+        return self._configure(('window', 'configure', index), cnf, kw)
+    window_config = window_configure
+    def window_create(self, index, cnf={}, **kw):
+        """Create a window at INDEX."""
+        self.tk.call(
+              (self._w, 'window', 'create', index)
+              + self._options(cnf, kw))
+    def window_names(self):
+        """Return all names of embedded windows in this widget."""
+        return self.tk.splitlist(
+            self.tk.call(self._w, 'window', 'names'))
+    def xview(self, *what):
+        """Query and change horizontal position of the view."""
+        if not what:
+            return self._getdoubles(self.tk.call(self._w, 'xview'))
+        self.tk.call((self._w, 'xview') + what)
+    def xview_moveto(self, fraction):
+        """Adjusts the view in the window so that FRACTION of the
+        total width of the canvas is off-screen to the left."""
+        self.tk.call(self._w, 'xview', 'moveto', fraction)
+    def xview_scroll(self, number, what):
+        """Shift the x-view according to NUMBER which is measured
+        in "units" or "pages" (WHAT)."""
+        self.tk.call(self._w, 'xview', 'scroll', number, what)
+    def yview(self, *what):
+        """Query and change vertical position of the view."""
+        if not what:
+            return self._getdoubles(self.tk.call(self._w, 'yview'))
+        self.tk.call((self._w, 'yview') + what)
+    def yview_moveto(self, fraction):
+        """Adjusts the view in the window so that FRACTION of the
+        total height of the canvas is off-screen to the top."""
+        self.tk.call(self._w, 'yview', 'moveto', fraction)
+    def yview_scroll(self, number, what):
+        """Shift the y-view according to NUMBER which is measured
+        in "units" or "pages" (WHAT)."""
+        self.tk.call(self._w, 'yview', 'scroll', number, what)
+    def yview_pickplace(self, *what):
+        """Obsolete function, use see."""
+        self.tk.call((self._w, 'yview', '-pickplace') + what)
+
+
+class _setit:
+    """Internal class. It wraps the command in the widget OptionMenu."""
+    def __init__(self, var, value, callback=None):
+        self.__value = value
+        self.__var = var
+        self.__callback = callback
+    def __call__(self, *args):
+        self.__var.set(self.__value)
+        if self.__callback:
+            self.__callback(self.__value, *args)
+
+class OptionMenu(Menubutton):
+    """OptionMenu which allows the user to select a value from a menu."""
+    def __init__(self, master, variable, value, *values, **kwargs):
+        """Construct an optionmenu widget with the parent MASTER, with
+        the resource textvariable set to VARIABLE, the initially selected
+        value VALUE, the other menu values VALUES and an additional
+        keyword argument command."""
+        kw = {"borderwidth": 2, "textvariable": variable,
+              "indicatoron": 1, "relief": RAISED, "anchor": "c",
+              "highlightthickness": 2}
+        Widget.__init__(self, master, "menubutton", kw)
+        self.widgetName = 'tk_optionMenu'
+        menu = self.__menu = Menu(self, name="menu", tearoff=0)
+        self.menuname = menu._w
+        # 'command' is the only supported keyword
+        callback = kwargs.get('command')
+        if kwargs.has_key('command'):
+            del kwargs['command']
+        if kwargs:
+            raise TclError, 'unknown option -'+kwargs.keys()[0]
+        menu.add_command(label=value,
+                 command=_setit(variable, value, callback))
+        for v in values:
+            menu.add_command(label=v,
+                     command=_setit(variable, v, callback))
+        self["menu"] = menu
+
+    def __getitem__(self, name):
+        if name == 'menu':
+            return self.__menu
+        return Widget.__getitem__(self, name)
+
+    def destroy(self):
+        """Destroy this widget and the associated menu."""
+        Menubutton.destroy(self)
+        self.__menu = None
+
+class Image:
+    """Base class for images."""
+    _last_id = 0
+    def __init__(self, imgtype, name=None, cnf={}, master=None, **kw):
+        self.name = None
+        if not master:
+            master = _default_root
+            if not master:
+                raise RuntimeError, 'Too early to create image'
+        self.tk = master.tk
+        if not name:
+            Image._last_id += 1
+            name = "pyimage%r" % (Image._last_id,) # tk itself would use image<x>
+            # The following is needed for systems where id(x)
+            # can return a negative number, such as Linux/m68k:
+            if name[0] == '-': name = '_' + name[1:]
+        if kw and cnf: cnf = _cnfmerge((cnf, kw))
+        elif kw: cnf = kw
+        options = ()
+        for k, v in cnf.items():
+            if callable(v):
+                v = self._register(v)
+            options = options + ('-'+k, v)
+        self.tk.call(('image', 'create', imgtype, name,) + options)
+        self.name = name
+    def __str__(self): return self.name
+    def __del__(self):
+        if self.name:
+            try:
+                self.tk.call('image', 'delete', self.name)
+            except TclError:
+                # May happen if the root was destroyed
+                pass
+    def __setitem__(self, key, value):
+        self.tk.call(self.name, 'configure', '-'+key, value)
+    def __getitem__(self, key):
+        return self.tk.call(self.name, 'configure', '-'+key)
+    def configure(self, **kw):
+        """Configure the image."""
+        res = ()
+        for k, v in _cnfmerge(kw).items():
+            if v is not None:
+                if k[-1] == '_': k = k[:-1]
+                if callable(v):
+                    v = self._register(v)
+                res = res + ('-'+k, v)
+        self.tk.call((self.name, 'config') + res)
+    config = configure
+    def height(self):
+        """Return the height of the image."""
+        return getint(
+            self.tk.call('image', 'height', self.name))
+    def type(self):
+        """Return the type of the imgage, e.g. "photo" or "bitmap"."""
+        return self.tk.call('image', 'type', self.name)
+    def width(self):
+        """Return the width of the image."""
+        return getint(
+            self.tk.call('image', 'width', self.name))
+
+class PhotoImage(Image):
+    """Widget which can display colored images in GIF, PPM/PGM format."""
+    def __init__(self, name=None, cnf={}, master=None, **kw):
+        """Create an image with NAME.
+
+        Valid resource names: data, format, file, gamma, height, palette,
+        width."""
+        Image.__init__(self, 'photo', name, cnf, master, **kw)
+    def blank(self):
+        """Display a transparent image."""
+        self.tk.call(self.name, 'blank')
+    def cget(self, option):
+        """Return the value of OPTION."""
+        return self.tk.call(self.name, 'cget', '-' + option)
+    # XXX config
+    def __getitem__(self, key):
+        return self.tk.call(self.name, 'cget', '-' + key)
+    # XXX copy -from, -to, ...?
+    def copy(self):
+        """Return a new PhotoImage with the same image as this widget."""
+        destImage = PhotoImage()
+        self.tk.call(destImage, 'copy', self.name)
+        return destImage
+    def zoom(self,x,y=''):
+        """Return a new PhotoImage with the same image as this widget
+        but zoom it with X and Y."""
+        destImage = PhotoImage()
+        if y=='': y=x
+        self.tk.call(destImage, 'copy', self.name, '-zoom',x,y)
+        return destImage
+    def subsample(self,x,y=''):
+        """Return a new PhotoImage based on the same image as this widget
+        but use only every Xth or Yth pixel."""
+        destImage = PhotoImage()
+        if y=='': y=x
+        self.tk.call(destImage, 'copy', self.name, '-subsample',x,y)
+        return destImage
+    def get(self, x, y):
+        """Return the color (red, green, blue) of the pixel at X,Y."""
+        return self.tk.call(self.name, 'get', x, y)
+    def put(self, data, to=None):
+        """Put row formated colors to image starting from
+        position TO, e.g. image.put("{red green} {blue yellow}", to=(4,6))"""
+        args = (self.name, 'put', data)
+        if to:
+            if to[0] == '-to':
+                to = to[1:]
+            args = args + ('-to',) + tuple(to)
+        self.tk.call(args)
+    # XXX read
+    def write(self, filename, format=None, from_coords=None):
+        """Write image to file FILENAME in FORMAT starting from
+        position FROM_COORDS."""
+        args = (self.name, 'write', filename)
+        if format:
+            args = args + ('-format', format)
+        if from_coords:
+            args = args + ('-from',) + tuple(from_coords)
+        self.tk.call(args)
+
+class BitmapImage(Image):
+    """Widget which can display a bitmap."""
+    def __init__(self, name=None, cnf={}, master=None, **kw):
+        """Create a bitmap with NAME.
+
+        Valid resource names: background, data, file, foreground, maskdata, maskfile."""
+        Image.__init__(self, 'bitmap', name, cnf, master, **kw)
+
+def image_names(): return _default_root.tk.call('image', 'names')
+def image_types(): return _default_root.tk.call('image', 'types')
+
+
+class Spinbox(Widget):
+    """spinbox widget."""
+    def __init__(self, master=None, cnf={}, **kw):
+        """Construct a spinbox widget with the parent MASTER.
+
+        STANDARD OPTIONS
+
+            activebackground, background, borderwidth,
+            cursor, exportselection, font, foreground,
+            highlightbackground, highlightcolor,
+            highlightthickness, insertbackground,
+            insertborderwidth, insertofftime,
+            insertontime, insertwidth, justify, relief,
+            repeatdelay, repeatinterval,
+            selectbackground, selectborderwidth
+            selectforeground, takefocus, textvariable
+            xscrollcommand.
+
+        WIDGET-SPECIFIC OPTIONS
+
+            buttonbackground, buttoncursor,
+            buttondownrelief, buttonuprelief,
+            command, disabledbackground,
+            disabledforeground, format, from,
+            invalidcommand, increment,
+            readonlybackground, state, to,
+            validate, validatecommand values,
+            width, wrap,
+        """
+        Widget.__init__(self, master, 'spinbox', cnf, kw)
+
+    def bbox(self, index):
+        """Return a tuple of X1,Y1,X2,Y2 coordinates for a
+        rectangle which encloses the character given by index.
+
+        The first two elements of the list give the x and y
+        coordinates of the upper-left corner of the screen
+        area covered by the character (in pixels relative
+        to the widget) and the last two elements give the
+        width and height of the character, in pixels. The
+        bounding box may refer to a region outside the
+        visible area of the window.
+        """
+        return self.tk.call(self._w, 'bbox', index)
+
+    def delete(self, first, last=None):
+        """Delete one or more elements of the spinbox.
+
+        First is the index of the first character to delete,
+        and last is the index of the character just after
+        the last one to delete. If last isn't specified it
+        defaults to first+1, i.e. a single character is
+        deleted.  This command returns an empty string.
+        """
+        return self.tk.call(self._w, 'delete', first, last)
+
+    def get(self):
+        """Returns the spinbox's string"""
+        return self.tk.call(self._w, 'get')
+
+    def icursor(self, index):
+        """Alter the position of the insertion cursor.
+
+        The insertion cursor will be displayed just before
+        the character given by index. Returns an empty string
+        """
+        return self.tk.call(self._w, 'icursor', index)
+
+    def identify(self, x, y):
+        """Returns the name of the widget at position x, y
+
+        Return value is one of: none, buttondown, buttonup, entry
+        """
+        return self.tk.call(self._w, 'identify', x, y)
+
+    def index(self, index):
+        """Returns the numerical index corresponding to index
+        """
+        return self.tk.call(self._w, 'index', index)
+
+    def insert(self, index, s):
+        """Insert string s at index
+
+         Returns an empty string.
+        """
+        return self.tk.call(self._w, 'insert', index, s)
+
+    def invoke(self, element):
+        """Causes the specified element to be invoked
+
+        The element could be buttondown or buttonup
+        triggering the action associated with it.
+        """
+        return self.tk.call(self._w, 'invoke', element)
+
+    def scan(self, *args):
+        """Internal function."""
+        return self._getints(
+            self.tk.call((self._w, 'scan') + args)) or ()
+
+    def scan_mark(self, x):
+        """Records x and the current view in the spinbox window;
+
+        used in conjunction with later scan dragto commands.
+        Typically this command is associated with a mouse button
+        press in the widget. It returns an empty string.
+        """
+        return self.scan("mark", x)
+
+    def scan_dragto(self, x):
+        """Compute the difference between the given x argument
+        and the x argument to the last scan mark command
+
+        It then adjusts the view left or right by 10 times the
+        difference in x-coordinates. This command is typically
+        associated with mouse motion events in the widget, to
+        produce the effect of dragging the spinbox at high speed
+        through the window. The return value is an empty string.
+        """
+        return self.scan("dragto", x)
+
+    def selection(self, *args):
+        """Internal function."""
+        return self._getints(
+            self.tk.call((self._w, 'selection') + args)) or ()
+
+    def selection_adjust(self, index):
+        """Locate the end of the selection nearest to the character
+        given by index,
+
+        Then adjust that end of the selection to be at index
+        (i.e including but not going beyond index). The other
+        end of the selection is made the anchor point for future
+        select to commands. If the selection isn't currently in
+        the spinbox, then a new selection is created to include
+        the characters between index and the most recent selection
+        anchor point, inclusive. Returns an empty string.
+        """
+        return self.selection("adjust", index)
+
+    def selection_clear(self):
+        """Clear the selection
+
+        If the selection isn't in this widget then the
+        command has no effect. Returns an empty string.
+        """
+        return self.selection("clear")
+
+    def selection_element(self, element=None):
+        """Sets or gets the currently selected element.
+
+        If a spinbutton element is specified, it will be
+        displayed depressed
+        """
+        return self.selection("element", element)
+
+###########################################################################
+
+class LabelFrame(Widget):
+    """labelframe widget."""
+    def __init__(self, master=None, cnf={}, **kw):
+        """Construct a labelframe widget with the parent MASTER.
+
+        STANDARD OPTIONS
+
+            borderwidth, cursor, font, foreground,
+            highlightbackground, highlightcolor,
+            highlightthickness, padx, pady, relief,
+            takefocus, text
+
+        WIDGET-SPECIFIC OPTIONS
+
+            background, class, colormap, container,
+            height, labelanchor, labelwidget,
+            visual, width
+        """
+        Widget.__init__(self, master, 'labelframe', cnf, kw)
+
+########################################################################
+
+class PanedWindow(Widget):
+    """panedwindow widget."""
+    def __init__(self, master=None, cnf={}, **kw):
+        """Construct a panedwindow widget with the parent MASTER.
+
+        STANDARD OPTIONS
+
+            background, borderwidth, cursor, height,
+            orient, relief, width
+
+        WIDGET-SPECIFIC OPTIONS
+
+            handlepad, handlesize, opaqueresize,
+            sashcursor, sashpad, sashrelief,
+            sashwidth, showhandle,
+        """
+        Widget.__init__(self, master, 'panedwindow', cnf, kw)
+
+    def add(self, child, **kw):
+        """Add a child widget to the panedwindow in a new pane.
+
+        The child argument is the name of the child widget
+        followed by pairs of arguments that specify how to
+        manage the windows. Options may have any of the values
+        accepted by the configure subcommand.
+        """
+        self.tk.call((self._w, 'add', child) + self._options(kw))
+
+    def remove(self, child):
+        """Remove the pane containing child from the panedwindow
+
+        All geometry management options for child will be forgotten.
+        """
+        self.tk.call(self._w, 'forget', child)
+    forget=remove
+
+    def identify(self, x, y):
+        """Identify the panedwindow component at point x, y
+
+        If the point is over a sash or a sash handle, the result
+        is a two element list containing the index of the sash or
+        handle, and a word indicating whether it is over a sash
+        or a handle, such as {0 sash} or {2 handle}. If the point
+        is over any other part of the panedwindow, the result is
+        an empty list.
+        """
+        return self.tk.call(self._w, 'identify', x, y)
+
+    def proxy(self, *args):
+        """Internal function."""
+        return self._getints(
+            self.tk.call((self._w, 'proxy') + args)) or ()
+
+    def proxy_coord(self):
+        """Return the x and y pair of the most recent proxy location
+        """
+        return self.proxy("coord")
+
+    def proxy_forget(self):
+        """Remove the proxy from the display.
+        """
+        return self.proxy("forget")
+
+    def proxy_place(self, x, y):
+        """Place the proxy at the given x and y coordinates.
+        """
+        return self.proxy("place", x, y)
+
+    def sash(self, *args):
+        """Internal function."""
+        return self._getints(
+            self.tk.call((self._w, 'sash') + args)) or ()
+
+    def sash_coord(self, index):
+        """Return the current x and y pair for the sash given by index.
+
+        Index must be an integer between 0 and 1 less than the
+        number of panes in the panedwindow. The coordinates given are
+        those of the top left corner of the region containing the sash.
+        pathName sash dragto index x y This command computes the
+        difference between the given coordinates and the coordinates
+        given to the last sash coord command for the given sash. It then
+        moves that sash the computed difference. The return value is the
+        empty string.
+        """
+        return self.sash("coord", index)
+
+    def sash_mark(self, index):
+        """Records x and y for the sash given by index;
+
+        Used in conjunction with later dragto commands to move the sash.
+        """
+        return self.sash("mark", index)
+
+    def sash_place(self, index, x, y):
+        """Place the sash given by index at the given coordinates
+        """
+        return self.sash("place", index, x, y)
+
+    def panecget(self, child, option):
+        """Query a management option for window.
+
+        Option may be any value allowed by the paneconfigure subcommand
+        """
+        return self.tk.call(
+            (self._w, 'panecget') + (child, '-'+option))
+
+    def paneconfigure(self, tagOrId, cnf=None, **kw):
+        """Query or modify the management options for window.
+
+        If no option is specified, returns a list describing all
+        of the available options for pathName.  If option is
+        specified with no value, then the command returns a list
+        describing the one named option (this list will be identical
+        to the corresponding sublist of the value returned if no
+        option is specified). If one or more option-value pairs are
+        specified, then the command modifies the given widget
+        option(s) to have the given value(s); in this case the
+        command returns an empty string. The following options
+        are supported:
+
+        after window
+            Insert the window after the window specified. window
+            should be the name of a window already managed by pathName.
+        before window
+            Insert the window before the window specified. window
+            should be the name of a window already managed by pathName.
+        height size
+            Specify a height for the window. The height will be the
+            outer dimension of the window including its border, if
+            any. If size is an empty string, or if -height is not
+            specified, then the height requested internally by the
+            window will be used initially; the height may later be
+            adjusted by the movement of sashes in the panedwindow.
+            Size may be any value accepted by Tk_GetPixels.
+        minsize n
+            Specifies that the size of the window cannot be made
+            less than n. This constraint only affects the size of
+            the widget in the paned dimension -- the x dimension
+            for horizontal panedwindows, the y dimension for
+            vertical panedwindows. May be any value accepted by
+            Tk_GetPixels.
+        padx n
+            Specifies a non-negative value indicating how much
+            extra space to leave on each side of the window in
+            the X-direction. The value may have any of the forms
+            accepted by Tk_GetPixels.
+        pady n
+            Specifies a non-negative value indicating how much
+            extra space to leave on each side of the window in
+            the Y-direction. The value may have any of the forms
+            accepted by Tk_GetPixels.
+        sticky style
+            If a window's pane is larger than the requested
+            dimensions of the window, this option may be used
+            to position (or stretch) the window within its pane.
+            Style is a string that contains zero or more of the
+            characters n, s, e or w. The string can optionally
+            contains spaces or commas, but they are ignored. Each
+            letter refers to a side (north, south, east, or west)
+            that the window will "stick" to. If both n and s
+            (or e and w) are specified, the window will be
+            stretched to fill the entire height (or width) of
+            its cavity.
+        width size
+            Specify a width for the window. The width will be
+            the outer dimension of the window including its
+            border, if any. If size is an empty string, or
+            if -width is not specified, then the width requested
+            internally by the window will be used initially; the
+            width may later be adjusted by the movement of sashes
+            in the panedwindow. Size may be any value accepted by
+            Tk_GetPixels.
+
+        """
+        if cnf is None and not kw:
+            cnf = {}
+            for x in self.tk.split(
+                self.tk.call(self._w,
+                         'paneconfigure', tagOrId)):
+                cnf[x[0][1:]] = (x[0][1:],) + x[1:]
+            return cnf
+        if type(cnf) == StringType and not kw:
+            x = self.tk.split(self.tk.call(
+                self._w, 'paneconfigure', tagOrId, '-'+cnf))
+            return (x[0][1:],) + x[1:]
+        self.tk.call((self._w, 'paneconfigure', tagOrId) +
+                 self._options(cnf, kw))
+    paneconfig = paneconfigure
+
+    def panes(self):
+        """Returns an ordered list of the child panes."""
+        return self.tk.call(self._w, 'panes')
+
+######################################################################
+# Extensions:
+
+class Studbutton(Button):
+    def __init__(self, master=None, cnf={}, **kw):
+        Widget.__init__(self, master, 'studbutton', cnf, kw)
+        self.bind('<Any-Enter>',       self.tkButtonEnter)
+        self.bind('<Any-Leave>',       self.tkButtonLeave)
+        self.bind('<1>',               self.tkButtonDown)
+        self.bind('<ButtonRelease-1>', self.tkButtonUp)
+
+class Tributton(Button):
+    def __init__(self, master=None, cnf={}, **kw):
+        Widget.__init__(self, master, 'tributton', cnf, kw)
+        self.bind('<Any-Enter>',       self.tkButtonEnter)
+        self.bind('<Any-Leave>',       self.tkButtonLeave)
+        self.bind('<1>',               self.tkButtonDown)
+        self.bind('<ButtonRelease-1>', self.tkButtonUp)
+        self['fg']               = self['bg']
+        self['activebackground'] = self['bg']
+
+######################################################################
+# Test:
+
+def _test():
+    root = Tk()
+    text = "This is Tcl/Tk version %s" % TclVersion
+    if TclVersion >= 8.1:
+        try:
+            text = text + unicode("\nThis should be a cedilla: \347",
+                                  "iso-8859-1")
+        except NameError:
+            pass # no unicode support
+    label = Label(root, text=text)
+    label.pack()
+    test = Button(root, text="Click me!",
+              command=lambda root=root: root.test.configure(
+                  text="[%s]" % root.test['text']))
+    test.pack()
+    root.test = test
+    quit = Button(root, text="QUIT", command=root.destroy)
+    quit.pack()
+    # The following three commands are needed so the window pops
+    # up on top on Windows...
+    root.iconify()
+    root.update()
+    root.deiconify()
+    root.mainloop()
+
+if __name__ == '__main__':
+    _test()
diff --git a/Lib/lib-tk/tkColorChooser.py b/Lib/lib-tk/tkColorChooser.py
new file mode 100644
index 0000000..77b391a
--- /dev/null
+++ b/Lib/lib-tk/tkColorChooser.py
@@ -0,0 +1,70 @@
+# tk common colour chooser dialogue
+#
+# this module provides an interface to the native color dialogue
+# available in Tk 4.2 and newer.
+#
+# written by Fredrik Lundh, May 1997
+#
+# fixed initialcolor handling in August 1998
+#
+
+#
+# options (all have default values):
+#
+# - initialcolor: colour to mark as selected when dialog is displayed
+#   (given as an RGB triplet or a Tk color string)
+#
+# - parent: which window to place the dialog on top of
+#
+# - title: dialog title
+#
+
+from tkinter.commondialog import Dialog
+
+
+#
+# color chooser class
+
+class Chooser(Dialog):
+    "Ask for a color"
+
+    command = "tk_chooseColor"
+
+    def _fixoptions(self):
+        try:
+            # make sure initialcolor is a tk color string
+            color = self.options["initialcolor"]
+            if type(color) == type(()):
+                # assume an RGB triplet
+                self.options["initialcolor"] = "#%02x%02x%02x" % color
+        except KeyError:
+            pass
+
+    def _fixresult(self, widget, result):
+        # to simplify application code, the color chooser returns
+        # an RGB tuple together with the Tk color string
+        if not result:
+            return None, None # canceled
+        r, g, b = widget.winfo_rgb(result)
+        return (r/256, g/256, b/256), result
+
+
+#
+# convenience stuff
+
+def askcolor(color = None, **options):
+    "Ask for a color"
+
+    if color:
+        options = options.copy()
+        options["initialcolor"] = color
+
+    return Chooser(**options).show()
+
+
+# --------------------------------------------------------------------
+# test stuff
+
+if __name__ == "__main__":
+
+    print "color", askcolor()
diff --git a/Lib/lib-tk/tkCommonDialog.py b/Lib/lib-tk/tkCommonDialog.py
new file mode 100644
index 0000000..f61eb45
--- /dev/null
+++ b/Lib/lib-tk/tkCommonDialog.py
@@ -0,0 +1,60 @@
+# base class for tk common dialogues
+#
+# this module provides a base class for accessing the common
+# dialogues available in Tk 4.2 and newer.  use filedialog,
+# colorchooser, and messagebox to access the individual
+# dialogs.
+#
+# written by Fredrik Lundh, May 1997
+#
+
+from tkinter import *
+
+class Dialog:
+
+    command  = None
+
+    def __init__(self, master=None, **options):
+
+        # FIXME: should this be placed on the module level instead?
+        if TkVersion < 4.2:
+            raise TclError, "this module requires Tk 4.2 or newer"
+
+        self.master  = master
+        self.options = options
+        if not master and options.get('parent'):
+            self.master = options['parent']
+
+    def _fixoptions(self):
+        pass # hook
+
+    def _fixresult(self, widget, result):
+        return result # hook
+
+    def show(self, **options):
+
+        # update instance options
+        for k, v in options.items():
+            self.options[k] = v
+
+        self._fixoptions()
+
+        # we need a dummy widget to properly process the options
+        # (at least as long as we use Tkinter 1.63)
+        w = Frame(self.master)
+
+        try:
+
+            s = w.tk.call(self.command, *w._options(self.options))
+
+            s = self._fixresult(w, s)
+
+        finally:
+
+            try:
+                # get rid of the widget
+                w.destroy()
+            except:
+                pass
+
+        return s
diff --git a/Lib/lib-tk/tkFileDialog.py b/Lib/lib-tk/tkFileDialog.py
new file mode 100644
index 0000000..15c7d5f
--- /dev/null
+++ b/Lib/lib-tk/tkFileDialog.py
@@ -0,0 +1,215 @@
+#
+# Instant Python
+# $Id: tkFileDialog.py 36560 2004-07-18 06:16:08Z tim_one $
+#
+# tk common file dialogues
+#
+# this module provides interfaces to the native file dialogues
+# available in Tk 4.2 and newer, and the directory dialogue available
+# in Tk 8.3 and newer.
+#
+# written by Fredrik Lundh, May 1997.
+#
+
+#
+# options (all have default values):
+#
+# - defaultextension: added to filename if not explicitly given
+#
+# - filetypes: sequence of (label, pattern) tuples.  the same pattern
+#   may occur with several patterns.  use "*" as pattern to indicate
+#   all files.
+#
+# - initialdir: initial directory.  preserved by dialog instance.
+#
+# - initialfile: initial file (ignored by the open dialog).  preserved
+#   by dialog instance.
+#
+# - parent: which window to place the dialog on top of
+#
+# - title: dialog title
+#
+# - multiple: if true user may select more than one file
+#
+# options for the directory chooser:
+#
+# - initialdir, parent, title: see above
+#
+# - mustexist: if true, user must pick an existing directory
+#
+#
+
+
+from tkCommonDialog import Dialog
+
+class _Dialog(Dialog):
+
+    def _fixoptions(self):
+        try:
+            # make sure "filetypes" is a tuple
+            self.options["filetypes"] = tuple(self.options["filetypes"])
+        except KeyError:
+            pass
+
+    def _fixresult(self, widget, result):
+        if result:
+            # keep directory and filename until next time
+            import os
+            # convert Tcl path objects to strings
+            try:
+                result = result.string
+            except AttributeError:
+                # it already is a string
+                pass
+            path, file = os.path.split(result)
+            self.options["initialdir"] = path
+            self.options["initialfile"] = file
+        self.filename = result # compatibility
+        return result
+
+
+#
+# file dialogs
+
+class Open(_Dialog):
+    "Ask for a filename to open"
+
+    command = "tk_getOpenFile"
+
+    def _fixresult(self, widget, result):
+        if isinstance(result, tuple):
+            # multiple results:
+            result = tuple([getattr(r, "string", r) for r in result])
+            if result:
+                import os
+                path, file = os.path.split(result[0])
+                self.options["initialdir"] = path
+                # don't set initialfile or filename, as we have multiple of these
+            return result
+        if not widget.tk.wantobjects() and "multiple" in self.options:
+            # Need to split result explicitly
+            return self._fixresult(widget, widget.tk.splitlist(result))
+        return _Dialog._fixresult(self, widget, result)
+
+class SaveAs(_Dialog):
+    "Ask for a filename to save as"
+
+    command = "tk_getSaveFile"
+
+
+# the directory dialog has its own _fix routines.
+class Directory(Dialog):
+    "Ask for a directory"
+
+    command = "tk_chooseDirectory"
+
+    def _fixresult(self, widget, result):
+        if result:
+            # convert Tcl path objects to strings
+            try:
+                result = result.string
+            except AttributeError:
+                # it already is a string
+                pass
+            # keep directory until next time
+            self.options["initialdir"] = result
+        self.directory = result # compatibility
+        return result
+
+#
+# convenience stuff
+
+def askopenfilename(**options):
+    "Ask for a filename to open"
+
+    return Open(**options).show()
+
+def asksaveasfilename(**options):
+    "Ask for a filename to save as"
+
+    return SaveAs(**options).show()
+
+def askopenfilenames(**options):
+    """Ask for multiple filenames to open
+
+    Returns a list of filenames or empty list if
+    cancel button selected
+    """
+    options["multiple"]=1
+    return Open(**options).show()
+
+# FIXME: are the following  perhaps a bit too convenient?
+
+def askopenfile(mode = "r", **options):
+    "Ask for a filename to open, and returned the opened file"
+
+    filename = Open(**options).show()
+    if filename:
+        return open(filename, mode)
+    return None
+
+def askopenfiles(mode = "r", **options):
+    """Ask for multiple filenames and return the open file
+    objects
+
+    returns a list of open file objects or an empty list if
+    cancel selected
+    """
+
+    files = askopenfilenames(**options)
+    if files:
+        ofiles=[]
+        for filename in files:
+            ofiles.append(open(filename, mode))
+        files=ofiles
+    return files
+
+
+def asksaveasfile(mode = "w", **options):
+    "Ask for a filename to save as, and returned the opened file"
+
+    filename = SaveAs(**options).show()
+    if filename:
+        return open(filename, mode)
+    return None
+
+def askdirectory (**options):
+    "Ask for a directory, and return the file name"
+    return Directory(**options).show()
+
+# --------------------------------------------------------------------
+# test stuff
+
+if __name__ == "__main__":
+    # Since the file name may contain non-ASCII characters, we need
+    # to find an encoding that likely supports the file name, and
+    # displays correctly on the terminal.
+
+    # Start off with UTF-8
+    enc = "utf-8"
+    import sys
+
+    # See whether CODESET is defined
+    try:
+        import locale
+        locale.setlocale(locale.LC_ALL,'')
+        enc = locale.nl_langinfo(locale.CODESET)
+    except (ImportError, AttributeError):
+        pass
+
+    # dialog for openening files
+
+    openfilename=askopenfilename(filetypes=[("all files", "*")])
+    try:
+        fp=open(openfilename,"r")
+        fp.close()
+    except:
+        print "Could not open File: "
+        print sys.exc_info()[1]
+
+    print "open", openfilename.encode(enc)
+
+    # dialog for saving files
+
+    saveasfilename=asksaveasfilename()
+    print "saveas", saveasfilename.encode(enc)
diff --git a/Lib/lib-tk/tkFont.py b/Lib/lib-tk/tkFont.py
new file mode 100644
index 0000000..c23f047
--- /dev/null
+++ b/Lib/lib-tk/tkFont.py
@@ -0,0 +1,216 @@
+# Tkinter font wrapper
+#
+# written by Fredrik Lundh, February 1998
+#
+# FIXME: should add 'displayof' option where relevant (actual, families,
+#        measure, and metrics)
+#
+
+__version__ = "0.9"
+
+import tkinter
+
+# weight/slant
+NORMAL = "normal"
+ROMAN = "roman"
+BOLD   = "bold"
+ITALIC = "italic"
+
+def nametofont(name):
+    """Given the name of a tk named font, returns a Font representation.
+    """
+    return Font(name=name, exists=True)
+
+class Font:
+
+    """Represents a named font.
+
+    Constructor options are:
+
+    font -- font specifier (name, system font, or (family, size, style)-tuple)
+    name -- name to use for this font configuration (defaults to a unique name)
+    exists -- does a named font by this name already exist?
+       Creates a new named font if False, points to the existing font if True.
+       Raises _tkinter.TclError if the assertion is false.
+
+       the following are ignored if font is specified:
+
+    family -- font 'family', e.g. Courier, Times, Helvetica
+    size -- font size in points
+    weight -- font thickness: NORMAL, BOLD
+    slant -- font slant: ROMAN, ITALIC
+    underline -- font underlining: false (0), true (1)
+    overstrike -- font strikeout: false (0), true (1)
+
+    """
+
+    def _set(self, kw):
+        options = []
+        for k, v in kw.items():
+            options.append("-"+k)
+            options.append(str(v))
+        return tuple(options)
+
+    def _get(self, args):
+        options = []
+        for k in args:
+            options.append("-"+k)
+        return tuple(options)
+
+    def _mkdict(self, args):
+        options = {}
+        for i in range(0, len(args), 2):
+            options[args[i][1:]] = args[i+1]
+        return options
+
+    def __init__(self, root=None, font=None, name=None, exists=False, **options):
+        if not root:
+            root = tkinter._default_root
+        if font:
+            # get actual settings corresponding to the given font
+            font = root.tk.splitlist(root.tk.call("font", "actual", font))
+        else:
+            font = self._set(options)
+        if not name:
+            name = "font" + str(id(self))
+        self.name = name
+
+        if exists:
+            self.delete_font = False
+            # confirm font exists
+            if self.name not in root.tk.call("font", "names"):
+                raise tkinter._tkinter.TclError, "named font %s does not already exist" % (self.name,)
+            # if font config info supplied, apply it
+            if font:
+                root.tk.call("font", "configure", self.name, *font)
+        else:
+            # create new font (raises TclError if the font exists)
+            root.tk.call("font", "create", self.name, *font)
+            self.delete_font = True
+        # backlinks!
+        self._root  = root
+        self._split = root.tk.splitlist
+        self._call  = root.tk.call
+
+    def __str__(self):
+        return self.name
+
+    def __eq__(self, other):
+        return self.name == other.name and isinstance(other, Font)
+
+    def __getitem__(self, key):
+        return self.cget(key)
+
+    def __setitem__(self, key, value):
+        self.configure(**{key: value})
+
+    def __del__(self):
+        try:
+            if self.delete_font:
+                self._call("font", "delete", self.name)
+        except (KeyboardInterrupt, SystemExit):
+            raise
+        except Exception:
+            pass
+
+    def copy(self):
+        "Return a distinct copy of the current font"
+        return Font(self._root, **self.actual())
+
+    def actual(self, option=None):
+        "Return actual font attributes"
+        if option:
+            return self._call("font", "actual", self.name, "-"+option)
+        else:
+            return self._mkdict(
+                self._split(self._call("font", "actual", self.name))
+                )
+
+    def cget(self, option):
+        "Get font attribute"
+        return self._call("font", "config", self.name, "-"+option)
+
+    def config(self, **options):
+        "Modify font attributes"
+        if options:
+            self._call("font", "config", self.name,
+                  *self._set(options))
+        else:
+            return self._mkdict(
+                self._split(self._call("font", "config", self.name))
+                )
+
+    configure = config
+
+    def measure(self, text):
+        "Return text width"
+        return int(self._call("font", "measure", self.name, text))
+
+    def metrics(self, *options):
+        """Return font metrics.
+
+        For best performance, create a dummy widget
+        using this font before calling this method."""
+
+        if options:
+            return int(
+                self._call("font", "metrics", self.name, self._get(options))
+                )
+        else:
+            res = self._split(self._call("font", "metrics", self.name))
+            options = {}
+            for i in range(0, len(res), 2):
+                options[res[i][1:]] = int(res[i+1])
+            return options
+
+def families(root=None):
+    "Get font families (as a tuple)"
+    if not root:
+        root = tkinter._default_root
+    return root.tk.splitlist(root.tk.call("font", "families"))
+
+def names(root=None):
+    "Get names of defined fonts (as a tuple)"
+    if not root:
+        root = tkinter._default_root
+    return root.tk.splitlist(root.tk.call("font", "names"))
+
+# --------------------------------------------------------------------
+# test stuff
+
+if __name__ == "__main__":
+
+    root = tkinter.Tk()
+
+    # create a font
+    f = Font(family="times", size=30, weight=NORMAL)
+
+    print f.actual()
+    print f.actual("family")
+    print f.actual("weight")
+
+    print f.config()
+    print f.cget("family")
+    print f.cget("weight")
+
+    print names()
+
+    print f.measure("hello"), f.metrics("linespace")
+
+    print f.metrics()
+
+    f = Font(font=("Courier", 20, "bold"))
+    print f.measure("hello"), f.metrics("linespace")
+
+    w = tkinter.Label(root, text="Hello, world", font=f)
+    w.pack()
+
+    w = tkinter.Button(root, text="Quit!", command=root.destroy)
+    w.pack()
+
+    fb = Font(font=w["font"]).copy()
+    fb.config(weight=BOLD)
+
+    w.config(font=fb)
+
+    tkinter.mainloop()
diff --git a/Lib/lib-tk/tkMessageBox.py b/Lib/lib-tk/tkMessageBox.py
new file mode 100644
index 0000000..df0a163
--- /dev/null
+++ b/Lib/lib-tk/tkMessageBox.py
@@ -0,0 +1,132 @@
+# tk common message boxes
+#
+# this module provides an interface to the native message boxes
+# available in Tk 4.2 and newer.
+#
+# written by Fredrik Lundh, May 1997
+#
+
+#
+# options (all have default values):
+#
+# - default: which button to make default (one of the reply codes)
+#
+# - icon: which icon to display (see below)
+#
+# - message: the message to display
+#
+# - parent: which window to place the dialog on top of
+#
+# - title: dialog title
+#
+# - type: dialog type; that is, which buttons to display (see below)
+#
+
+from tkinter.commondialog import Dialog
+
+#
+# constants
+
+# icons
+ERROR = "error"
+INFO = "info"
+QUESTION = "question"
+WARNING = "warning"
+
+# types
+ABORTRETRYIGNORE = "abortretryignore"
+OK = "ok"
+OKCANCEL = "okcancel"
+RETRYCANCEL = "retrycancel"
+YESNO = "yesno"
+YESNOCANCEL = "yesnocancel"
+
+# replies
+ABORT = "abort"
+RETRY = "retry"
+IGNORE = "ignore"
+OK = "ok"
+CANCEL = "cancel"
+YES = "yes"
+NO = "no"
+
+
+#
+# message dialog class
+
+class Message(Dialog):
+    "A message box"
+
+    command  = "tk_messageBox"
+
+
+#
+# convenience stuff
+
+# Rename _icon and _type options to allow overriding them in options
+def _show(title=None, message=None, _icon=None, _type=None, **options):
+    if _icon and "icon" not in options:    options["icon"] = _icon
+    if _type and "type" not in options:    options["type"] = _type
+    if title:   options["title"] = title
+    if message: options["message"] = message
+    res = Message(**options).show()
+    # In some Tcl installations, Tcl converts yes/no into a boolean
+    if isinstance(res, bool):
+        if res: return YES
+        return NO
+    return res
+
+def showinfo(title=None, message=None, **options):
+    "Show an info message"
+    return _show(title, message, INFO, OK, **options)
+
+def showwarning(title=None, message=None, **options):
+    "Show a warning message"
+    return _show(title, message, WARNING, OK, **options)
+
+def showerror(title=None, message=None, **options):
+    "Show an error message"
+    return _show(title, message, ERROR, OK, **options)
+
+def askquestion(title=None, message=None, **options):
+    "Ask a question"
+    return _show(title, message, QUESTION, YESNO, **options)
+
+def askokcancel(title=None, message=None, **options):
+    "Ask if operation should proceed; return true if the answer is ok"
+    s = _show(title, message, QUESTION, OKCANCEL, **options)
+    return s == OK
+
+def askyesno(title=None, message=None, **options):
+    "Ask a question; return true if the answer is yes"
+    s = _show(title, message, QUESTION, YESNO, **options)
+    return s == YES
+
+def askyesnocancel(title=None, message=None, **options):
+    "Ask a question; return true if the answer is yes, None if cancelled."
+    s = _show(title, message, QUESTION, YESNOCANCEL, **options)
+    # s might be a Tcl index object, so convert it to a string
+    s = str(s)
+    if s == CANCEL:
+        return None
+    return s == YES
+
+def askretrycancel(title=None, message=None, **options):
+    "Ask if operation should be retried; return true if the answer is yes"
+    s = _show(title, message, WARNING, RETRYCANCEL, **options)
+    return s == RETRY
+
+
+# --------------------------------------------------------------------
+# test stuff
+
+if __name__ == "__main__":
+
+    print "info", showinfo("Spam", "Egg Information")
+    print "warning", showwarning("Spam", "Egg Warning")
+    print "error", showerror("Spam", "Egg Alert")
+    print "question", askquestion("Spam", "Question?")
+    print "proceed", askokcancel("Spam", "Proceed?")
+    print "yes/no", askyesno("Spam", "Got it?")
+    print "yes/no/cancel", askyesnocancel("Spam", "Want it?")
+    print "try again", askretrycancel("Spam", "Try again?")
diff --git a/Lib/lib-tk/tkSimpleDialog.py b/Lib/lib-tk/tkSimpleDialog.py
new file mode 100644
index 0000000..6948a49
--- /dev/null
+++ b/Lib/lib-tk/tkSimpleDialog.py
@@ -0,0 +1,319 @@
+#
+# An Introduction to Tkinter
+# tkSimpleDialog.py
+#
+# Copyright (c) 1997 by Fredrik Lundh
+#
+# fredrik@pythonware.com
+# http://www.pythonware.com
+#
+
+# --------------------------------------------------------------------
+# dialog base class
+
+'''Dialog boxes
+
+This module handles dialog boxes. It contains the following
+public symbols:
+
+Dialog -- a base class for dialogs
+
+askinteger -- get an integer from the user
+
+askfloat -- get a float from the user
+
+askstring -- get a string from the user
+'''
+
+from Tkinter import *
+
+class Dialog(Toplevel):
+
+    '''Class to open dialogs.
+
+    This class is intended as a base class for custom dialogs
+    '''
+
+    def __init__(self, parent, title = None):
+
+        '''Initialize a dialog.
+
+        Arguments:
+
+            parent -- a parent window (the application window)
+
+            title -- the dialog title
+        '''
+        Toplevel.__init__(self, parent)
+
+        # If the master is not viewable, don't
+        # make the child transient, or else it
+        # would be opened withdrawn
+        if parent.winfo_viewable():
+            self.transient(parent)
+
+        if title:
+            self.title(title)
+
+        self.parent = parent
+
+        self.result = None
+
+        body = Frame(self)
+        self.initial_focus = self.body(body)
+        body.pack(padx=5, pady=5)
+
+        self.buttonbox()
+
+        self.wait_visibility() # window needs to be visible for the grab
+        self.grab_set()
+
+        if not self.initial_focus:
+            self.initial_focus = self
+
+        self.protocol("WM_DELETE_WINDOW", self.cancel)
+
+        if self.parent is not None:
+            self.geometry("+%d+%d" % (parent.winfo_rootx()+50,
+                                      parent.winfo_rooty()+50))
+
+        self.initial_focus.focus_set()
+
+        self.wait_window(self)
+
+    def destroy(self):
+        '''Destroy the window'''
+        self.initial_focus = None
+        Toplevel.destroy(self)
+
+    #
+    # construction hooks
+
+    def body(self, master):
+        '''create dialog body.
+
+        return widget that should have initial focus.
+        This method should be overridden, and is called
+        by the __init__ method.
+        '''
+        pass
+
+    def buttonbox(self):
+        '''add standard button box.
+
+        override if you do not want the standard buttons
+        '''
+
+        box = Frame(self)
+
+        w = Button(box, text="OK", width=10, command=self.ok, default=ACTIVE)
+        w.pack(side=LEFT, padx=5, pady=5)
+        w = Button(box, text="Cancel", width=10, command=self.cancel)
+        w.pack(side=LEFT, padx=5, pady=5)
+
+        self.bind("<Return>", self.ok)
+        self.bind("<Escape>", self.cancel)
+
+        box.pack()
+
+    #
+    # standard button semantics
+
+    def ok(self, event=None):
+
+        if not self.validate():
+            self.initial_focus.focus_set() # put focus back
+            return
+
+        self.withdraw()
+        self.update_idletasks()
+
+        try:
+            self.apply()
+        finally:
+            self.cancel()
+
+    def cancel(self, event=None):
+
+        # put focus back to the parent window
+        if self.parent is not None:
+            self.parent.focus_set()
+        self.destroy()
+
+    #
+    # command hooks
+
+    def validate(self):
+        '''validate the data
+
+        This method is called automatically to validate the data before the
+        dialog is destroyed. By default, it always validates OK.
+        '''
+
+        return 1 # override
+
+    def apply(self):
+        '''process the data
+
+        This method is called automatically to process the data, *after*
+        the dialog is destroyed. By default, it does nothing.
+        '''
+
+        pass # override
+
+
+# --------------------------------------------------------------------
+# convenience dialogues
+
+class _QueryDialog(Dialog):
+
+    def __init__(self, title, prompt,
+                 initialvalue=None,
+                 minvalue = None, maxvalue = None,
+                 parent = None):
+
+        if not parent:
+            import Tkinter
+            parent = Tkinter._default_root
+
+        self.prompt   = prompt
+        self.minvalue = minvalue
+        self.maxvalue = maxvalue
+
+        self.initialvalue = initialvalue
+
+        Dialog.__init__(self, parent, title)
+
+    def destroy(self):
+        self.entry = None
+        Dialog.destroy(self)
+
+    def body(self, master):
+
+        w = Label(master, text=self.prompt, justify=LEFT)
+        w.grid(row=0, padx=5, sticky=W)
+
+        self.entry = Entry(master, name="entry")
+        self.entry.grid(row=1, padx=5, sticky=W+E)
+
+        if self.initialvalue:
+            self.entry.insert(0, self.initialvalue)
+            self.entry.select_range(0, END)
+
+        return self.entry
+
+    def validate(self):
+
+        import tkMessageBox
+
+        try:
+            result = self.getresult()
+        except ValueError:
+            tkMessageBox.showwarning(
+                "Illegal value",
+                self.errormessage + "\nPlease try again",
+                parent = self
+            )
+            return 0
+
+        if self.minvalue is not None and result < self.minvalue:
+            tkMessageBox.showwarning(
+                "Too small",
+                "The allowed minimum value is %s. "
+                "Please try again." % self.minvalue,
+                parent = self
+            )
+            return 0
+
+        if self.maxvalue is not None and result > self.maxvalue:
+            tkMessageBox.showwarning(
+                "Too large",
+                "The allowed maximum value is %s. "
+                "Please try again." % self.maxvalue,
+                parent = self
+            )
+            return 0
+
+        self.result = result
+
+        return 1
+
+
+class _QueryInteger(_QueryDialog):
+    errormessage = "Not an integer."
+    def getresult(self):
+        return int(self.entry.get())
+
+def askinteger(title, prompt, **kw):
+    '''get an integer from the user
+
+    Arguments:
+
+        title -- the dialog title
+        prompt -- the label text
+        **kw -- see SimpleDialog class
+
+    Return value is an integer
+    '''
+    d = _QueryInteger(title, prompt, **kw)
+    return d.result
+
+class _QueryFloat(_QueryDialog):
+    errormessage = "Not a floating point value."
+    def getresult(self):
+        return float(self.entry.get())
+
+def askfloat(title, prompt, **kw):
+    '''get a float from the user
+
+    Arguments:
+
+        title -- the dialog title
+        prompt -- the label text
+        **kw -- see SimpleDialog class
+
+    Return value is a float
+    '''
+    d = _QueryFloat(title, prompt, **kw)
+    return d.result
+
+class _QueryString(_QueryDialog):
+    def __init__(self, *args, **kw):
+        if kw.has_key("show"):
+            self.__show = kw["show"]
+            del kw["show"]
+        else:
+            self.__show = None
+        _QueryDialog.__init__(self, *args, **kw)
+
+    def body(self, master):
+        entry = _QueryDialog.body(self, master)
+        if self.__show is not None:
+            entry.configure(show=self.__show)
+        return entry
+
+    def getresult(self):
+        return self.entry.get()
+
+def askstring(title, prompt, **kw):
+    '''get a string from the user
+
+    Arguments:
+
+        title -- the dialog title
+        prompt -- the label text
+        **kw -- see SimpleDialog class
+
+    Return value is a string
+    '''
+    d = _QueryString(title, prompt, **kw)
+    return d.result
+
+if __name__ == "__main__":
+
+    root = Tk()
+    root.update()
+
+    print askinteger("Spam", "Egg count", initialvalue=12*12)
+    print askfloat("Spam", "Egg weight\n(in tons)", minvalue=1, maxvalue=100)
+    print askstring("Spam", "Egg label")
diff --git a/Lib/lib-tk/turtle.py b/Lib/lib-tk/turtle.py
new file mode 100644
index 0000000..0d343e6
--- /dev/null
+++ b/Lib/lib-tk/turtle.py
@@ -0,0 +1,956 @@
+# LogoMation-like turtle graphics
+
+"""
+Turtle graphics is a popular way for introducing programming to
+kids. It was part of the original Logo programming language developed
+by Wally Feurzeig and Seymour Papert in 1966.
+
+Imagine a robotic turtle starting at (0, 0) in the x-y plane. Give it
+the command turtle.forward(15), and it moves (on-screen!) 15 pixels in
+the direction it is facing, drawing a line as it moves. Give it the
+command turtle.left(25), and it rotates in-place 25 degrees clockwise.
+
+By combining together these and similar commands, intricate shapes and
+pictures can easily be drawn.
+"""
+
+from math import * # Also for export
+from time import sleep
+import tkinter
+
+speeds = ['fastest', 'fast', 'normal', 'slow', 'slowest']
+
+class Error(Exception):
+    pass
+
+class RawPen:
+
+    def __init__(self, canvas):
+        self._canvas = canvas
+        self._items = []
+        self._tracing = 1
+        self._arrow = 0
+        self._delay = 10     # default delay for drawing
+        self._angle = 0.0
+        self.degrees()
+        self.reset()
+
+    def degrees(self, fullcircle=360.0):
+        """ Set angle measurement units to degrees.
+
+        Example:
+        >>> turtle.degrees()
+        """
+        # Don't try to change _angle if it is 0, because
+        # _fullcircle might not be set, yet
+        if self._angle:
+            self._angle = (self._angle / self._fullcircle) * fullcircle
+        self._fullcircle = fullcircle
+        self._invradian = pi / (fullcircle * 0.5)
+
+    def radians(self):
+        """ Set the angle measurement units to radians.
+
+        Example:
+        >>> turtle.radians()
+        """
+        self.degrees(2.0*pi)
+
+    def reset(self):
+        """ Clear the screen, re-center the pen, and set variables to
+        the default values.
+
+        Example:
+        >>> turtle.position()
+        [0.0, -22.0]
+        >>> turtle.heading()
+        100.0
+        >>> turtle.reset()
+        >>> turtle.position()
+        [0.0, 0.0]
+        >>> turtle.heading()
+        0.0
+        """
+        canvas = self._canvas
+        self._canvas.update()
+        width = canvas.winfo_width()
+        height = canvas.winfo_height()
+        if width <= 1:
+            width = canvas['width']
+        if height <= 1:
+            height = canvas['height']
+        self._origin = float(width)/2.0, float(height)/2.0
+        self._position = self._origin
+        self._angle = 0.0
+        self._drawing = 1
+        self._width = 1
+        self._color = "black"
+        self._filling = 0
+        self._path = []
+        self.clear()
+        canvas._root().tkraise()
+
+    def clear(self):
+        """ Clear the screen. The turtle does not move.
+
+        Example:
+        >>> turtle.clear()
+        """
+        self.fill(0)
+        canvas = self._canvas
+        items = self._items
+        self._items = []
+        for item in items:
+            canvas.delete(item)
+        self._delete_turtle()
+        self._draw_turtle()
+
+    def tracer(self, flag):
+        """ Set tracing on if flag is True, and off if it is False.
+        Tracing means line are drawn more slowly, with an
+        animation of an arrow along the line.
+
+        Example:
+        >>> turtle.tracer(False)   # turns off Tracer
+        """
+        self._tracing = flag
+        if not self._tracing:
+            self._delete_turtle()
+        self._draw_turtle()
+
+    def forward(self, distance):
+        """ Go forward distance steps.
+
+        Example:
+        >>> turtle.position()
+        [0.0, 0.0]
+        >>> turtle.forward(25)
+        >>> turtle.position()
+        [25.0, 0.0]
+        >>> turtle.forward(-75)
+        >>> turtle.position()
+        [-50.0, 0.0]
+        """
+        x0, y0 = start = self._position
+        x1 = x0 + distance * cos(self._angle*self._invradian)
+        y1 = y0 - distance * sin(self._angle*self._invradian)
+        self._goto(x1, y1)
+
+    def backward(self, distance):
+        """ Go backwards distance steps.
+
+        The turtle's heading does not change.
+
+        Example:
+        >>> turtle.position()
+        [0.0, 0.0]
+        >>> turtle.backward(30)
+        >>> turtle.position()
+        [-30.0, 0.0]
+        """
+        self.forward(-distance)
+
+    def left(self, angle):
+        """ Turn left angle units (units are by default degrees,
+        but can be set via the degrees() and radians() functions.)
+
+        When viewed from above, the turning happens in-place around
+        its front tip.
+
+        Example:
+        >>> turtle.heading()
+        22
+        >>> turtle.left(45)
+        >>> turtle.heading()
+        67.0
+        """
+        self._angle = (self._angle + angle) % self._fullcircle
+        self._draw_turtle()
+
+    def right(self, angle):
+        """ Turn right angle units (units are by default degrees,
+        but can be set via the degrees() and radians() functions.)
+
+        When viewed from above, the turning happens in-place around
+        its front tip.
+
+        Example:
+        >>> turtle.heading()
+        22
+        >>> turtle.right(45)
+        >>> turtle.heading()
+        337.0
+        """
+        self.left(-angle)
+
+    def up(self):
+        """ Pull the pen up -- no drawing when moving.
+
+        Example:
+        >>> turtle.up()
+        """
+        self._drawing = 0
+
+    def down(self):
+        """ Put the pen down -- draw when moving.
+
+        Example:
+        >>> turtle.down()
+        """
+        self._drawing = 1
+
+    def width(self, width):
+        """ Set the line to thickness to width.
+
+        Example:
+        >>> turtle.width(10)
+        """
+        self._width = float(width)
+
+    def color(self, *args):
+        """ Set the pen color.
+
+        Three input formats are allowed:
+
+            color(s)
+            s is a Tk specification string, such as "red" or "yellow"
+
+            color((r, g, b))
+            *a tuple* of r, g, and b, which represent, an RGB color,
+            and each of r, g, and b are in the range [0..1]
+
+            color(r, g, b)
+            r, g, and b represent an RGB color, and each of r, g, and b
+            are in the range [0..1]
+
+        Example:
+
+        >>> turtle.color('brown')
+        >>> tup = (0.2, 0.8, 0.55)
+        >>> turtle.color(tup)
+        >>> turtle.color(0, .5, 0)
+        """
+        if not args:
+            raise Error, "no color arguments"
+        if len(args) == 1:
+            color = args[0]
+            if type(color) == type(""):
+                # Test the color first
+                try:
+                    id = self._canvas.create_line(0, 0, 0, 0, fill=color)
+                except tkinter.TclError:
+                    raise Error, "bad color string: %r" % (color,)
+                self._set_color(color)
+                return
+            try:
+                r, g, b = color
+            except:
+                raise Error, "bad color sequence: %r" % (color,)
+        else:
+            try:
+                r, g, b = args
+            except:
+                raise Error, "bad color arguments: %r" % (args,)
+        assert 0 <= r <= 1
+        assert 0 <= g <= 1
+        assert 0 <= b <= 1
+        x = 255.0
+        y = 0.5
+        self._set_color("#%02x%02x%02x" % (int(r*x+y), int(g*x+y), int(b*x+y)))
+
+    def _set_color(self,color):
+        self._color = color
+        self._draw_turtle()
+
+    def write(self, text, move=False):
+        """ Write text at the current pen position.
+
+        If move is true, the pen is moved to the bottom-right corner
+        of the text. By default, move is False.
+
+        Example:
+        >>> turtle.write('The race is on!')
+        >>> turtle.write('Home = (0, 0)', True)
+        """
+        x, y  = self._position
+        x = x-1 # correction -- calibrated for Windows
+        item = self._canvas.create_text(x, y,
+                                        text=str(text), anchor="sw",
+                                        fill=self._color)
+        self._items.append(item)
+        if move:
+            x0, y0, x1, y1 = self._canvas.bbox(item)
+            self._goto(x1, y1)
+        self._draw_turtle()
+
+    def fill(self, flag):
+        """ Call fill(1) before drawing the shape you
+         want to fill, and fill(0) when done.
+
+        Example:
+        >>> turtle.fill(1)
+        >>> turtle.forward(100)
+        >>> turtle.left(90)
+        >>> turtle.forward(100)
+        >>> turtle.left(90)
+        >>> turtle.forward(100)
+        >>> turtle.left(90)
+        >>> turtle.forward(100)
+        >>> turtle.fill(0)
+        """
+        if self._filling:
+            path = tuple(self._path)
+            smooth = self._filling < 0
+            if len(path) > 2:
+                item = self._canvas._create('polygon', path,
+                                            {'fill': self._color,
+                                             'smooth': smooth})
+                self._items.append(item)
+        self._path = []
+        self._filling = flag
+        if flag:
+            self._path.append(self._position)
+
+    def begin_fill(self):
+        """ Called just before drawing a shape to be filled.
+            Must eventually be followed by a corresponding end_fill() call.
+            Otherwise it will be ignored.
+
+        Example:
+        >>> turtle.begin_fill()
+        >>> turtle.forward(100)
+        >>> turtle.left(90)
+        >>> turtle.forward(100)
+        >>> turtle.left(90)
+        >>> turtle.forward(100)
+        >>> turtle.left(90)
+        >>> turtle.forward(100)
+        >>> turtle.end_fill()
+        """
+        self._path = [self._position]
+        self._filling = 1
+
+    def end_fill(self):
+        """ Called after drawing a shape to be filled.
+
+        Example:
+        >>> turtle.begin_fill()
+        >>> turtle.forward(100)
+        >>> turtle.left(90)
+        >>> turtle.forward(100)
+        >>> turtle.left(90)
+        >>> turtle.forward(100)
+        >>> turtle.left(90)
+        >>> turtle.forward(100)
+        >>> turtle.end_fill()
+        """
+        self.fill(0)
+
+    def circle(self, radius, extent = None):
+        """ Draw a circle with given radius.
+        The center is radius units left of the turtle; extent
+        determines which part of the circle is drawn. If not given,
+        the entire circle is drawn.
+
+        If extent is not a full circle, one endpoint of the arc is the
+        current pen position. The arc is drawn in a counter clockwise
+        direction if radius is positive, otherwise in a clockwise
+        direction. In the process, the direction of the turtle is
+        changed by the amount of the extent.
+
+        >>> turtle.circle(50)
+        >>> turtle.circle(120, 180)  # half a circle
+        """
+        if extent is None:
+            extent = self._fullcircle
+        frac = abs(extent)/self._fullcircle
+        steps = 1+int(min(11+abs(radius)/6.0, 59.0)*frac)
+        w = 1.0 * extent / steps
+        w2 = 0.5 * w
+        l = 2.0 * radius * sin(w2*self._invradian)
+        if radius < 0:
+            l, w, w2 = -l, -w, -w2
+        self.left(w2)
+        for i in range(steps):
+            self.forward(l)
+            self.left(w)
+        self.right(w2)
+
+    def heading(self):
+        """ Return the turtle's current heading.
+
+        Example:
+        >>> turtle.heading()
+        67.0
+        """
+        return self._angle
+
+    def setheading(self, angle):
+        """ Set the turtle facing the given angle.
+
+        Here are some common directions in degrees:
+
+           0 - east
+          90 - north
+         180 - west
+         270 - south
+
+        Example:
+        >>> turtle.setheading(90)
+        >>> turtle.heading()
+        90
+        >>> turtle.setheading(128)
+        >>> turtle.heading()
+        128
+        """
+        self._angle = angle
+        self._draw_turtle()
+
+    def window_width(self):
+        """ Returns the width of the turtle window.
+
+        Example:
+        >>> turtle.window_width()
+        640
+        """
+        width = self._canvas.winfo_width()
+        if width <= 1:  # the window isn't managed by a geometry manager
+            width = self._canvas['width']
+        return width
+
+    def window_height(self):
+        """ Return the height of the turtle window.
+
+        Example:
+        >>> turtle.window_height()
+        768
+        """
+        height = self._canvas.winfo_height()
+        if height <= 1: # the window isn't managed by a geometry manager
+            height = self._canvas['height']
+        return height
+
+    def position(self):
+        """ Return the current (x, y) location of the turtle.
+
+        Example:
+        >>> turtle.position()
+        [0.0, 240.0]
+        """
+        x0, y0 = self._origin
+        x1, y1 = self._position
+        return [x1-x0, -y1+y0]
+
+    def setx(self, xpos):
+        """ Set the turtle's x coordinate to be xpos.
+
+        Example:
+        >>> turtle.position()
+        [10.0, 240.0]
+        >>> turtle.setx(10)
+        >>> turtle.position()
+        [10.0, 240.0]
+        """
+        x0, y0 = self._origin
+        x1, y1 = self._position
+        self._goto(x0+xpos, y1)
+
+    def sety(self, ypos):
+        """ Set the turtle's y coordinate to be ypos.
+
+        Example:
+        >>> turtle.position()
+        [0.0, 0.0]
+        >>> turtle.sety(-22)
+        >>> turtle.position()
+        [0.0, -22.0]
+        """
+        x0, y0 = self._origin
+        x1, y1 = self._position
+        self._goto(x1, y0-ypos)
+
+    def towards(self, *args):
+        """Returs the angle, which corresponds to the line
+        from turtle-position to point (x,y).
+
+        Argument can be two coordinates or one pair of coordinates
+        or a RawPen/Pen instance.
+
+        Example:
+        >>> turtle.position()
+        [10.0, 10.0]
+        >>> turtle.towards(0,0)
+        225.0
+        """
+        if len(args) == 2:
+            x, y = args
+        else:
+            arg = args[0]
+            if isinstance(arg, RawPen):
+                x, y = arg.position()
+            else:
+                x, y = arg
+        x0, y0 = self.position()
+        dx = x - x0
+        dy = y - y0
+        return (atan2(dy,dx) / self._invradian) % self._fullcircle
+
+    def goto(self, *args):
+        """ Go to the given point.
+
+        If the pen is down, then a line will be drawn. The turtle's
+        orientation does not change.
+
+        Two input formats are accepted:
+
+           goto(x, y)
+           go to point (x, y)
+
+           goto((x, y))
+           go to point (x, y)
+
+        Example:
+        >>> turtle.position()
+        [0.0, 0.0]
+        >>> turtle.goto(50, -45)
+        >>> turtle.position()
+        [50.0, -45.0]
+        """
+        if len(args) == 1:
+            try:
+                x, y = args[0]
+            except:
+                raise Error, "bad point argument: %r" % (args[0],)
+        else:
+            try:
+                x, y = args
+            except:
+                raise Error, "bad coordinates: %r" % (args[0],)
+        x0, y0 = self._origin
+        self._goto(x0+x, y0-y)
+
+    def _goto(self, x1, y1):
+        x0, y0 = self._position
+        self._position = map(float, (x1, y1))
+        if self._filling:
+            self._path.append(self._position)
+        if self._drawing:
+            if self._tracing:
+                dx = float(x1 - x0)
+                dy = float(y1 - y0)
+                distance = hypot(dx, dy)
+                nhops = int(distance)
+                item = self._canvas.create_line(x0, y0, x0, y0,
+                                                width=self._width,
+                                                capstyle="round",
+                                                fill=self._color)
+                try:
+                    for i in range(1, 1+nhops):
+                        x, y = x0 + dx*i/nhops, y0 + dy*i/nhops
+                        self._canvas.coords(item, x0, y0, x, y)
+                        self._draw_turtle((x,y))
+                        self._canvas.update()
+                        self._canvas.after(self._delay)
+                    # in case nhops==0
+                    self._canvas.coords(item, x0, y0, x1, y1)
+                    self._canvas.itemconfigure(item, arrow="none")
+                except tkinter.TclError:
+                    # Probably the window was closed!
+                    return
+            else:
+                item = self._canvas.create_line(x0, y0, x1, y1,
+                                                width=self._width,
+                                                capstyle="round",
+                                                fill=self._color)
+            self._items.append(item)
+        self._draw_turtle()
+
+    def speed(self, speed):
+        """ Set the turtle's speed.
+
+        speed must one of these five strings:
+
+            'fastest' is a 0 ms delay
+            'fast' is a 5 ms delay
+            'normal' is a 10 ms delay
+            'slow' is a 15 ms delay
+            'slowest' is a 20 ms delay
+
+         Example:
+         >>> turtle.speed('slow')
+        """
+        try:
+            speed = speed.strip().lower()
+            self._delay = speeds.index(speed) * 5
+        except:
+            raise ValueError("%r is not a valid speed. speed must be "
+                             "one of %s" % (speed, speeds))
+
+
+    def delay(self, delay):
+        """ Set the drawing delay in milliseconds.
+
+        This is intended to allow finer control of the drawing speed
+        than the speed() method
+
+        Example:
+        >>> turtle.delay(15)
+        """
+        if int(delay) < 0:
+            raise ValueError("delay must be greater than or equal to 0")
+        self._delay = int(delay)
+
+    def _draw_turtle(self, position=[]):
+        if not self._tracing:
+            self._canvas.update()
+            return
+        if position == []:
+            position = self._position
+        x,y = position
+        distance = 8
+        dx = distance * cos(self._angle*self._invradian)
+        dy = distance * sin(self._angle*self._invradian)
+        self._delete_turtle()
+        self._arrow = self._canvas.create_line(x-dx,y+dy,x,y,
+                                          width=self._width,
+                                          arrow="last",
+                                          capstyle="round",
+                                          fill=self._color)
+        self._canvas.update()
+
+    def _delete_turtle(self):
+        if self._arrow != 0:
+            self._canvas.delete(self._arrow)
+            self._arrow = 0
+
+
+_root = None
+_canvas = None
+_pen = None
+_width = 0.50                  # 50% of window width
+_height = 0.75                 # 75% of window height
+_startx = None
+_starty = None
+_title = "Turtle Graphics"     # default title
+
+class Pen(RawPen):
+
+    def __init__(self):
+        global _root, _canvas
+        if _root is None:
+            _root = tkinter.Tk()
+            _root.wm_protocol("WM_DELETE_WINDOW", self._destroy)
+            _root.title(_title)
+
+        if _canvas is None:
+            # XXX Should have scroll bars
+            _canvas = tkinter.Canvas(_root, background="white")
+            _canvas.pack(expand=1, fill="both")
+
+            setup(width=_width, height= _height, startx=_startx, starty=_starty)
+
+        RawPen.__init__(self, _canvas)
+
+    def _destroy(self):
+        global _root, _canvas, _pen
+        root = self._canvas._root()
+        if root is _root:
+            _pen = None
+            _root = None
+            _canvas = None
+        root.destroy()
+
+def _getpen():
+    global _pen
+    if not _pen:
+        _pen = Pen()
+    return _pen
+
+class Turtle(Pen):
+    pass
+
+"""For documentation of the following functions see
+   the RawPen methods with the same names
+"""
+
+def degrees(): _getpen().degrees()
+def radians(): _getpen().radians()
+def reset(): _getpen().reset()
+def clear(): _getpen().clear()
+def tracer(flag): _getpen().tracer(flag)
+def forward(distance): _getpen().forward(distance)
+def backward(distance): _getpen().backward(distance)
+def left(angle): _getpen().left(angle)
+def right(angle): _getpen().right(angle)
+def up(): _getpen().up()
+def down(): _getpen().down()
+def width(width): _getpen().width(width)
+def color(*args): _getpen().color(*args)
+def write(arg, move=0): _getpen().write(arg, move)
+def fill(flag): _getpen().fill(flag)
+def begin_fill(): _getpen().begin_fill()
+def end_fill(): _getpen().end_fill()
+def circle(radius, extent=None): _getpen().circle(radius, extent)
+def goto(*args): _getpen().goto(*args)
+def heading(): return _getpen().heading()
+def setheading(angle): _getpen().setheading(angle)
+def position(): return _getpen().position()
+def window_width(): return _getpen().window_width()
+def window_height(): return _getpen().window_height()
+def setx(xpos): _getpen().setx(xpos)
+def sety(ypos): _getpen().sety(ypos)
+def towards(*args): return _getpen().towards(*args)
+
+def done(): _root.mainloop()
+def delay(delay): return _getpen().delay(delay)
+def speed(speed): return _getpen().speed(speed)
+
+for methodname in dir(RawPen):
+    """ copies RawPen docstrings to module functions of same name """
+    if not methodname.startswith("_"):
+        eval(methodname).__doc__ = RawPen.__dict__[methodname].__doc__
+
+
+def setup(**geometry):
+    """ Sets the size and position of the main window.
+
+    Keywords are width, height, startx and starty:
+
+    width: either a size in pixels or a fraction of the screen.
+      Default is 50% of screen.
+    height: either the height in pixels or a fraction of the screen.
+      Default is 75% of screen.
+
+    Setting either width or height to None before drawing will force
+      use of default geometry as in older versions of turtle.py
+
+    startx: starting position in pixels from the left edge of the screen.
+      Default is to center window. Setting startx to None is the default
+      and centers window horizontally on screen.
+
+    starty: starting position in pixels from the top edge of the screen.
+      Default is to center window. Setting starty to None is the default
+      and centers window vertically on screen.
+
+    Examples:
+    >>> setup (width=200, height=200, startx=0, starty=0)
+
+    sets window to 200x200 pixels, in upper left of screen
+
+    >>> setup(width=.75, height=0.5, startx=None, starty=None)
+
+    sets window to 75% of screen by 50% of screen and centers
+
+    >>> setup(width=None)
+
+    forces use of default geometry as in older versions of turtle.py
+    """
+
+    global _width, _height, _startx, _starty
+
+    width = geometry.get('width',_width)
+    if width >= 0 or width is None:
+        _width = width
+    else:
+        raise ValueError, "width can not be less than 0"
+
+    height = geometry.get('height',_height)
+    if height >= 0 or height is None:
+        _height = height
+    else:
+        raise ValueError, "height can not be less than 0"
+
+    startx = geometry.get('startx', _startx)
+    if startx >= 0 or startx is None:
+        _startx = _startx
+    else:
+        raise ValueError, "startx can not be less than 0"
+
+    starty = geometry.get('starty', _starty)
+    if starty >= 0 or starty is None:
+        _starty = starty
+    else:
+        raise ValueError, "startx can not be less than 0"
+
+
+    if _root and _width and _height:
+        if 0 < _width <= 1:
+            _width = _root.winfo_screenwidth() * +width
+        if 0 < _height <= 1:
+            _height = _root.winfo_screenheight() * _height
+
+        # center window on screen
+        if _startx is None:
+            _startx = (_root.winfo_screenwidth() - _width) / 2
+
+        if _starty is None:
+            _starty = (_root.winfo_screenheight() - _height) / 2
+
+        _root.geometry("%dx%d+%d+%d" % (_width, _height, _startx, _starty))
+
+def title(title):
+    """Set the window title.
+
+    By default this is set to 'Turtle Graphics'
+
+    Example:
+    >>> title("My Window")
+    """
+
+    global _title
+    _title = title
+
+def demo():
+    reset()
+    tracer(1)
+    up()
+    backward(100)
+    down()
+    # draw 3 squares; the last filled
+    width(3)
+    for i in range(3):
+        if i == 2:
+            fill(1)
+        for j in range(4):
+            forward(20)
+            left(90)
+        if i == 2:
+            color("maroon")
+            fill(0)
+        up()
+        forward(30)
+        down()
+    width(1)
+    color("black")
+    # move out of the way
+    tracer(0)
+    up()
+    right(90)
+    forward(100)
+    right(90)
+    forward(100)
+    right(180)
+    down()
+    # some text
+    write("startstart", 1)
+    write("start", 1)
+    color("red")
+    # staircase
+    for i in range(5):
+        forward(20)
+        left(90)
+        forward(20)
+        right(90)
+    # filled staircase
+    fill(1)
+    for i in range(5):
+        forward(20)
+        left(90)
+        forward(20)
+        right(90)
+    fill(0)
+    tracer(1)
+    # more text
+    write("end")
+
+def demo2():
+    # exercises some new and improved features
+    speed('fast')
+    width(3)
+
+    # draw a segmented half-circle
+    setheading(towards(0,0))
+    x,y = position()
+    r = (x**2+y**2)**.5/2.0
+    right(90)
+    pendown = True
+    for i in range(18):
+        if pendown:
+            up()
+            pendown = False
+        else:
+            down()
+            pendown = True
+        circle(r,10)
+    sleep(2)
+
+    reset()
+    left(90)
+
+    # draw a series of triangles
+    l = 10
+    color("green")
+    width(3)
+    left(180)
+    sp = 5
+    for i in range(-2,16):
+        if i > 0:
+            color(1.0-0.05*i,0,0.05*i)
+            fill(1)
+            color("green")
+        for j in range(3):
+            forward(l)
+            left(120)
+        l += 10
+        left(15)
+        if sp > 0:
+            sp = sp-1
+            speed(speeds[sp])
+    color(0.25,0,0.75)
+    fill(0)
+
+    # draw and fill a concave shape
+    left(120)
+    up()
+    forward(70)
+    right(30)
+    down()
+    color("red")
+    speed("fastest")
+    fill(1)
+    for i in range(4):
+        circle(50,90)
+        right(90)
+        forward(30)
+        right(90)
+    color("yellow")
+    fill(0)
+    left(90)
+    up()
+    forward(30)
+    down();
+
+    color("red")
+
+    # create a second turtle and make the original pursue and catch it
+    turtle=Turtle()
+    turtle.reset()
+    turtle.left(90)
+    turtle.speed('normal')
+    turtle.up()
+    turtle.goto(280,40)
+    turtle.left(24)
+    turtle.down()
+    turtle.speed('fast')
+    turtle.color("blue")
+    turtle.width(2)
+    speed('fastest')
+
+    # turn default turtle towards new turtle object
+    setheading(towards(turtle))
+    while ( abs(position()[0]-turtle.position()[0])>4 or
+            abs(position()[1]-turtle.position()[1])>4):
+        turtle.forward(3.5)
+        turtle.left(0.6)
+        # turn default turtle towards new turtle object
+        setheading(towards(turtle))
+        forward(4)
+    write("CAUGHT! ", move=True)
+
+
+
+if __name__ == '__main__':
+    demo()
+    sleep(3)
+    demo2()
+    done()