Checking in IDLEFORK exactly as it appears in the idlefork CVS.
On a branch, for now.
diff --git a/Tools/idle/keybindingDialog.py b/Tools/idle/keybindingDialog.py
new file mode 100644
index 0000000..df024e7
--- /dev/null
+++ b/Tools/idle/keybindingDialog.py
@@ -0,0 +1,262 @@
+"""
+dialog for building tkinter accelerator key bindings
+"""
+from Tkinter import *
+import tkMessageBox
+import string, os
+
+class GetKeysDialog(Toplevel):
+    def __init__(self,parent,title,action,currentKeySequences):
+        """
+        action - string, the name of the virtual event these keys will be
+                 mapped to
+        currentKeys - list, a list of all key sequence lists currently mapped
+                 to virtual events, for overlap checking
+        """
+        Toplevel.__init__(self, parent)
+        self.configure(borderwidth=5)
+        self.resizable(height=FALSE,width=FALSE)
+        self.title(title)
+        self.transient(parent)
+        self.grab_set()
+        self.protocol("WM_DELETE_WINDOW", self.Cancel)
+        self.parent = parent
+        self.action=action
+        self.currentKeySequences=currentKeySequences
+        self.result=''
+        self.keyString=StringVar(self)
+        self.keyString.set('')
+        self.SetModifiersForPlatform()
+        self.modifier_vars = []
+        for modifier in self.modifiers:
+            variable = StringVar(self)
+            variable.set('')
+            self.modifier_vars.append(variable)
+        self.CreateWidgets()
+        self.LoadFinalKeyList()
+        self.withdraw() #hide while setting geometry
+        self.update_idletasks()
+        self.geometry("+%d+%d" %
+            ((parent.winfo_rootx()+((parent.winfo_width()/2)
+                -(self.winfo_reqwidth()/2)),
+              parent.winfo_rooty()+((parent.winfo_height()/2)
+                -(self.winfo_reqheight()/2)) )) ) #centre dialog over parent
+        self.deiconify() #geometry set, unhide
+        self.wait_window()
+
+    def CreateWidgets(self):
+        frameMain = Frame(self,borderwidth=2,relief=SUNKEN)
+        frameMain.pack(side=TOP,expand=TRUE,fill=BOTH)
+        frameButtons=Frame(self)
+        frameButtons.pack(side=BOTTOM,fill=X)
+        self.buttonOk = Button(frameButtons,text='Ok',
+                width=8,command=self.Ok)
+        self.buttonOk.grid(row=0,column=0,padx=5,pady=5)
+        self.buttonCancel = Button(frameButtons,text='Cancel',
+                width=8,command=self.Cancel)
+        self.buttonCancel.grid(row=0,column=1,padx=5,pady=5)
+        self.frameKeySeqBasic = Frame(frameMain)
+        self.frameKeySeqAdvanced = Frame(frameMain)
+        self.frameControlsBasic = Frame(frameMain)
+        self.frameHelpAdvanced = Frame(frameMain)
+        self.frameKeySeqAdvanced.grid(row=0,column=0,sticky=NSEW,padx=5,pady=5)
+        self.frameKeySeqBasic.grid(row=0,column=0,sticky=NSEW,padx=5,pady=5)
+        self.frameKeySeqBasic.lift()
+        self.frameHelpAdvanced.grid(row=1,column=0,sticky=NSEW,padx=5)
+        self.frameControlsBasic.grid(row=1,column=0,sticky=NSEW,padx=5)
+        self.frameControlsBasic.lift()
+        self.buttonLevel = Button(frameMain,command=self.ToggleLevel,
+                text='Advanced Key Binding Entry >>')
+        self.buttonLevel.grid(row=2,column=0,stick=EW,padx=5,pady=5)
+        labelTitleBasic = Label(self.frameKeySeqBasic,
+                text="New keys for  '"+self.action+"' :")
+        labelTitleBasic.pack(anchor=W)
+        labelKeysBasic = Label(self.frameKeySeqBasic,justify=LEFT,
+                textvariable=self.keyString,relief=GROOVE,borderwidth=2)
+        labelKeysBasic.pack(ipadx=5,ipady=5,fill=X)
+        self.modifier_checkbuttons = {}
+        column = 0
+        for modifier, variable in zip(self.modifiers, self.modifier_vars):
+            label = self.modifier_label.get(modifier, modifier)
+            check=Checkbutton(self.frameControlsBasic,
+                command=self.BuildKeyString,
+                text=label,variable=variable,onvalue=modifier,offvalue='')
+            check.grid(row=0,column=column,padx=2,sticky=W)
+            self.modifier_checkbuttons[modifier] = check
+            column += 1
+        labelFnAdvice=Label(self.frameControlsBasic,justify=LEFT,
+                text="Select the desired modifier\n"+
+                     "keys above, and final key\n"+
+                     "from the list on the right.")
+        labelFnAdvice.grid(row=1,column=0,columnspan=4,padx=2,sticky=W)
+        self.listKeysFinal=Listbox(self.frameControlsBasic,width=15,height=10,
+                selectmode=SINGLE)
+        self.listKeysFinal.bind('<ButtonRelease-1>',self.FinalKeySelected)
+        self.listKeysFinal.grid(row=0,column=4,rowspan=4,sticky=NS)
+        scrollKeysFinal=Scrollbar(self.frameControlsBasic,orient=VERTICAL,
+                command=self.listKeysFinal.yview)
+        self.listKeysFinal.config(yscrollcommand=scrollKeysFinal.set)
+        scrollKeysFinal.grid(row=0,column=5,rowspan=4,sticky=NS)
+        self.buttonClear=Button(self.frameControlsBasic,
+                text='Clear Keys',command=self.ClearKeySeq)
+        self.buttonClear.grid(row=2,column=0,columnspan=4)
+        labelTitleAdvanced = Label(self.frameKeySeqAdvanced,justify=LEFT,
+                text="Enter new binding(s) for  '"+self.action+"' :\n"+
+                "(will not be checked for validity)")
+        labelTitleAdvanced.pack(anchor=W)
+        self.entryKeysAdvanced=Entry(self.frameKeySeqAdvanced,
+                textvariable=self.keyString)
+        self.entryKeysAdvanced.pack(fill=X)
+        labelHelpAdvanced=Label(self.frameHelpAdvanced,justify=LEFT,
+            text="Key bindings are specified using tkinter key id's as\n"+
+                 "in these samples: <Control-f>, <Shift-F2>, <F12>,\n"
+                 "<Control-space>, <Meta-less>, <Control-Alt-Shift-x>.\n\n"+
+                 "'Emacs style' multi-keystroke bindings are specified as\n"+
+                 "follows: <Control-x><Control-y> or <Meta-f><Meta-g>.\n\n"+
+                 "Multiple separate bindings for one action should be\n"+
+                 "separated by a space, eg., <Alt-v> <Meta-v>." )
+        labelHelpAdvanced.grid(row=0,column=0,sticky=NSEW)
+
+    def SetModifiersForPlatform(self):
+        """Determine list of names of key modifiers for this platform.
+
+        The names are used to build Tk bindings -- it doesn't matter if the
+        keyboard has these keys, it matters if Tk understands them. The
+        order is also important: key binding equality depends on it, so
+        config-keys.def must use the same ordering.
+        """
+        import sys
+        if sys.platform == 'darwin' and sys.executable.count('.app'):
+            self.modifiers = ['Shift', 'Control', 'Option', 'Command']
+        else:
+            self.modifiers = ['Control', 'Alt', 'Shift']
+        self.modifier_label = {'Control': 'Ctrl'}
+
+    def ToggleLevel(self):
+        if  self.buttonLevel.cget('text')[:8]=='Advanced':
+            self.ClearKeySeq()
+            self.buttonLevel.config(text='<< Basic Key Binding Entry')
+            self.frameKeySeqAdvanced.lift()
+            self.frameHelpAdvanced.lift()
+            self.entryKeysAdvanced.focus_set()
+        else:
+            self.ClearKeySeq()
+            self.buttonLevel.config(text='Advanced Key Binding Entry >>')
+            self.frameKeySeqBasic.lift()
+            self.frameControlsBasic.lift()
+
+    def FinalKeySelected(self,event):
+        self.BuildKeyString()
+
+    def BuildKeyString(self):
+        keyList=[]
+        modifiers=self.GetModifiers()
+        finalKey=self.listKeysFinal.get(ANCHOR)
+        if modifiers: modifiers[0]='<'+modifiers[0]
+        keyList=keyList+modifiers
+        if finalKey:
+            if (not modifiers) and (finalKey not
+                    in self.alphanumKeys+self.punctuationKeys):
+                finalKey='<'+self.TranslateKey(finalKey)
+            else:
+                finalKey=self.TranslateKey(finalKey)
+            keyList.append(finalKey+'>')
+        keyStr=string.join(keyList,'-')
+        self.keyString.set(keyStr)
+
+    def GetModifiers(self):
+        modList = [variable.get() for variable in self.modifier_vars]
+        return filter(None, modList)
+
+    def ClearKeySeq(self):
+        self.listKeysFinal.select_clear(0,END)
+        self.listKeysFinal.yview(MOVETO, '0.0')
+        for variable in self.modifier_vars:
+            variable.set('')
+        self.keyString.set('')
+
+    def LoadFinalKeyList(self):
+        #these tuples are also available for use in validity checks
+        self.functionKeys=('F1','F2','F2','F4','F5','F6','F7','F8','F9',
+                'F10','F11','F12')
+        self.alphanumKeys=tuple(string.ascii_lowercase+string.digits)
+        self.punctuationKeys=tuple('~!@#%^&*()_-+={}[]|;:,.<>/?')
+        self.whitespaceKeys=('Tab','Space','Return')
+        self.editKeys=('BackSpace','Delete','Insert')
+        self.moveKeys=('Home','End','Page Up','Page Down','Left Arrow',
+                'Right Arrow','Up Arrow','Down Arrow')
+        #make a tuple of most of the useful common 'final' keys
+        keys=(self.alphanumKeys+self.punctuationKeys+self.functionKeys+
+                self.whitespaceKeys+self.editKeys+self.moveKeys)
+        apply(self.listKeysFinal.insert,
+            (END,)+keys)
+
+    def TranslateKey(self,key):
+        #translate from key list value to tkinter key-id
+        translateDict={'~':'asciitilde','!':'exclam','@':'at','#':'numbersign',
+                '%':'percent','^':'asciicircum','&':'ampersand','*':'asterisk',
+                '(':'parenleft',')':'parenright','_':'underscore','-':'minus',
+                '+':'plus','=':'equal','{':'braceleft','}':'braceright',
+                '[':'bracketleft',']':'bracketright','|':'bar',';':'semicolon',
+                ':':'colon',',':'comma','.':'period','<':'less','>':'greater',
+                '/':'slash','?':'question','Page Up':'Prior','Page Down':'Next',
+                'Left Arrow':'Left','Right Arrow':'Right','Up Arrow':'Up',
+                'Down Arrow': 'Down'}
+        if key in translateDict.keys():
+            key=translateDict[key]
+        key='Key-'+key
+        return key
+
+    def Ok(self, event=None):
+        if self.KeysOk():
+            self.result=self.keyString.get()
+            self.destroy()
+
+    def Cancel(self, event=None):
+        self.result=''
+        self.destroy()
+
+    def KeysOk(self):
+        #simple validity check
+        keysOk=1
+        keys=self.keyString.get()
+        keys.strip()
+        finalKey=self.listKeysFinal.get(ANCHOR)
+        modifiers=self.GetModifiers()
+        keySequence=keys.split()#make into a key sequence list for overlap check
+        if not keys: #no keys specified
+            tkMessageBox.showerror(title='Key Sequence Error',
+                    message='No keys specified.')
+            keysOk=0
+        elif not keys.endswith('>'): #no final key specified
+            tkMessageBox.showerror(title='Key Sequence Error',
+                    message='No final key specified.')
+            keysOk=0
+        elif (not modifiers) and (finalKey in
+                self.alphanumKeys+self.punctuationKeys):
+            #modifier required
+            tkMessageBox.showerror(title='Key Sequence Error',
+                    message='No modifier key(s) specified.')
+            keysOk=0
+        elif (modifiers==['Shift']) and (finalKey not
+                in self.functionKeys+('Tab',)):
+            #shift alone is only a useful modifier with a function key
+            tkMessageBox.showerror(title='Key Sequence Error',
+                    message='Shift alone is not a useful modifier '+
+                            'when used with this final key key.')
+            keysOk=0
+        elif keySequence in self.currentKeySequences: #keys combo already in use
+            tkMessageBox.showerror(title='Key Sequence Error',
+                    message='This key combination is already in use.')
+            keysOk=0
+        return keysOk
+
+if __name__ == '__main__':
+    #test the dialog
+    root=Tk()
+    def run():
+        keySeq=''
+        dlg=GetKeysDialog(root,'Get Keys','find-again',[])
+        print dlg.result
+    Button(root,text='Dialog',command=run).pack()
+    root.mainloop()