tkinter._flatten and others not (easily) accessible

[gpip]

Hello,

The tkinter package included here does a from Tkinter import *, which misses at least _flatten, and _cnfmerge which might be used by tk extensions. Therefore the typical method of handling Python 2/3 causes it to stop working when combined with python-future. Example:

try:
     import tkinter
except ImportError:
     import Tkinter as tkinter

after running the above on stock Python 2 or Python 3 tkinter._flatten is available, but not when using python-future. Packages that make use of that need to be patched with something like:

if not hasattr(tkinter, '_flatten'):
     from Tkinter import _flatten, _cnfmerge
     tkinter._flatten = _flatten
     tkinter._cnfmerge = _cnfmerge

[edschofield]

Thanks for the feedback, Guilherme!

I have added _flatten and _cnfmerge to the v0.16.x branch.

I would be very grateful if you could provide me with a comprehensive list of other underscore-prefixed names that deserve to be added. We could add these to the upcoming v0.16 release.

[gpip]

I believe the full list is ['_cnfmerge', '_default_root', '_exit', '_flatten', '_join', '_magic_re', '_setit', '_space_re', '_splitdict', '_stringify', '_support_default_root', '_test', '_tkerror', '_tkinter', '_varnum']. It's safer to add them all, but I would guess that _magic_re, _space_re, probably _exit and _tkerror, and _varnum are not/should not be in public use. The "semi-safe" list would then be:

['_cnfmerge', '_default_root', '_flatten', '_join', '_setit', '_splitdict', '_stringify', '_support_default_root', '_test', '_tkinter']

[edschofield]

I think this is fixed now in v0.16.0. Please feel free to re-open this issue if you encounter any more missing _names.

[alkrag]

I had the problem - I tried the above - For me the issue was I had installed a newer version of Anaconda without deleting the earlier - It had always worked before - It worked on other computers - When I deleted the earlier versions, it worked again - Not sure if that's related...