Bugs item #1342811, was opened at 2005-10-30 22:49
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Category: Tkinter
Group: Python 2.3
Status: Open
Resolution: None
Priority: 5
Submitted By: Sverker Nilsson (svenil)
Assigned to: Martin v. Löwis (loewis)
Summary: Tkinter.Menu.delete doesn't delete command of entry
Initial Comment:
Tkinter.Menu.delete does not delete the commands
defined for the entries it deletes. Those objects
will be retained until the menu itself is deleted.
For example, after code like this:
button = Menubutton(root, text='Window')
menu = Menu(button)
button['menu'] = menu
def command():
print 'command button pressed'
menu.add_command(command=command)
menu.delete(END)
del command
the command function will still be referenced and
kept in memory - until the menu object itself is
destroyed.
This may not always be a serious problem, but in
my case the menu was a 'Window' menu and the
command was a method on a window top level widget,
so retaining a pointer to it after deleting the
menu entry kept a reference to that entire window,
with any associated data.
I have figured out a possible fix that is in the
attached file test_menuleak.py that contains some
test functions.
I also changed the comment - for as far as I can
see, the second optional index is actually
INCLUDED in the range of entries deleted.
Version info
Python 2.3.3 (#2, Mar 11 2004, 19:45:43)
[GCC 2.95.2 20000220 (Debian GNU/Linux)] on linux2
I think it applies to all versions: I tested with
the latest 2.4.2 as well.
Sverker Nilsson
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