On Wed, Nov 19, 2008 at 4:57 AM, Eric Brunel <[EMAIL PROTECTED]> wrote:
> Hello all, > > I'm trying out Python 2.6 and I found what might be a bug in the Tkinter > module. How can I report it? > > The possible bug is a traceback when trying to delete a menu item in a menu > where no items have associated commands. > > For example: > ------------------------------ > from Tkinter import * > > root = Tk() > > mb = Menu(root) > root.configure(menu=mb) > > fm = Menu(mb) > mb.add_cascade(label='File', menu=fm) > > fm.add_command(label='Open') > fm.add_command(label='Quit') > > def remove_menu_item(): > fm.delete(1) > > Button(root, text='Remove menu item', > command=remove_menu_item).pack(padx=12, pady=24) > > root.mainloop() > ------------------------------ > > Clicking on the button should remove the 'Open' item in the 'File' menu, > but ends up in a traceback: > File "/opt/Python2.6+Tk8.5/bin/Linux/lib/python2.6/lib-tk/Tkinter.py", > line 1410, in __call__ > return self.func(*args) > File "menu.py", line 15, in remove_menu_item > fm.delete(1) > File "/opt/Python2.6+Tk8.5/bin/Linux/lib/python2.6/lib-tk/Tkinter.py", > line 2670, in delete > if c in self._tclCommands: > > It just seems the _tclCommands attribute on menus is initialized to None > and never changed if none of the items actually have a command. > > Thanks! > -- > python -c "print ''.join([chr(154 - ord(c)) for c in > 'U(17zX(%,5.zmz5(17l8(%,5.Z*(93-965$l7+-'])" > -- > http://mail.python.org/mailman/listinfo/python-list > I can confirm this behavior in 2.6: Full traceback (as Eric's is missing the last line) Exception in Tkinter callback Traceback (most recent call last): File "/usr/local/lib/python2.6/lib-tk/Tkinter.py", line 1410, in __call__ return self.func(*args) File "<stdin>", line 2, in remove_menu_item File "/usr/local/lib/python2.6/lib-tk/Tkinter.py", line 2670, in delete if c in self._tclCommands: TypeError: argument of type 'NoneType' is not iterable The example code works "as expected" under 2.5. I don't know enough about Tkinter to know whether or not this is actually a bug, or intended behavior, but it certainly strikes me as being a bug.
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