Tk 8.7: TIP 577 breaks tkinter.Menu.index() #103685
Description
Bug report
One effect of TIP 577 is that as of Tk 8.7, the index command for menus will now return an empty string instead of none, leading to an error in tkinter.Menu.index():
>>> m.index('none')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/user/git/cpython/Lib/tkinter/__init__.py", line 3434, in index
return self.tk.getint(i)
^^^^^^^^^^^^^^^^^
_tkinter.TclError: expected integer but got ""
It should be easy to accommodate both the new and old behavior.