Give in to the tab police.
diff --git a/Lib/lib-tk/FileDialog.py b/Lib/lib-tk/FileDialog.py
index fe98b6f..d3c96b8 100644
--- a/Lib/lib-tk/FileDialog.py
+++ b/Lib/lib-tk/FileDialog.py
@@ -27,7 +27,7 @@
         d = FileDialog(master)
         file = d.go(dir_or_file, pattern, default, key)
         if file is None: ...canceled...
-	else: ...open file...
+        else: ...open file...
 
     All arguments to go() are optional.
 
@@ -44,172 +44,172 @@
     title = "File Selection Dialog"
 
     def __init__(self, master, title=None):
-	if title is None: title = self.title
-	self.master = master
-	self.directory = 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.top = Toplevel(master)
+        self.top.title(title)
+        self.top.iconname(title)
 
-	self.botframe = Frame(self.top)
-	self.botframe.pack(side=BOTTOM, fill=X)
+        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.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.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.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.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.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.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)
+        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.grab_set()
-	self.how = None
-	self.master.mainloop()		# Exited by self.quit(how)
-	if key: dialogstates[key] = self.get_filter()
-	self.top.destroy()
-	return self.how
+        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.grab_set()
+        self.how = None
+        self.master.mainloop()          # Exited by self.quit(how)
+        if key: dialogstates[key] = self.get_filter()
+        self.top.destroy()
+        return self.how
 
     def quit(self, how=None):
-	self.how = how
-	self.master.quit()		# Exit mainloop()
+        self.how = how
+        self.master.quit()              # Exit mainloop()
 
     def dirs_double_event(self, event):
-	self.filter_command()
+        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)
+        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()
+        self.ok_command()
 
     def files_select_event(self, event):
-	file = self.files.get('active')
-	self.set_selection(file)
+        file = self.files.get('active')
+        self.set_selection(file)
 
     def ok_event(self, event):
-	self.ok_command()
+        self.ok_command()
 
     def ok_command(self):
-	self.quit(self.get_selection())
+        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)
+        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)
+        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
+        file = self.selection.get()
+        file = os.path.expanduser(file)
+        return file
 
     def cancel_command(self, event=None):
-	self.quit()
+        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 "*"))
+        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))
+        self.selection.delete(0, END)
+        self.selection.insert(END, os.path.join(self.directory, file))
 
 
 class LoadFileDialog(FileDialog):
@@ -219,11 +219,11 @@
     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)
+        file = self.get_selection()
+        if not os.path.isfile(file):
+            self.master.bell()
+        else:
+            self.quit(file)
 
 
 class SaveFileDialog(FileDialog):
@@ -233,25 +233,25 @@
     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 %s?" % `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)
+        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 %s?" % `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():