Can't import tkinter in Python 2.7

[Marrin]

I get an error when trying to import tkinter:

Traceback (most recent call last):
  File "forum4.py", line 2, in <module>
    from tkinter import *
  File "/usr/local/lib/python2.7/dist-packages/tkinter/__init__.py", line 6, in <module>
    from Tkinter import (_cnfmerge, _default_root, _flatten, _join, _setit,
ImportError: cannot import name _join

The import of _join was added as fix for #233 and also includes _splitdict, and _stringify which don't exist in my Python 2.7s Tkinter module. The perils of implementation details I guess.

[DaveyBiggers]

I'm also having this problem on Ubuntu 14.04 and Debian 7 - _splitdict seems to have been introduced around Python 2.7.9; it doesn't exist in 2.7.6, for example, which is the default system python for Ubuntu 14.04.

[sebfio]

This error goes away after capitalizing tkinter's import. Change 'tkinter' to 'Tkinter' and it'll hopefully go away!

(I saw this come up on my 14.04 machine)

[Marrin]

@sebfio That defeats the point of using future to import the old Python 2 module that is renamed and changed in Python 3, doesn't it?

[mpurg]

I noticed the same issue as @DaveyBiggers with Ubuntu 14.04.5 LTS, Python 2.7.6, future 0.16.0

Traceback (most recent call last):
  File "file.py", line 42, in <module>
    import tkinter
  File "/home/asd/.virtualenvs/asd/local/lib/python2.7/site-packages/tkinter/__init__.py", line 6, in <module>
    from Tkinter import (_cnfmerge, _default_root, _flatten, _join, _setit,
ImportError: cannot import name _splitdict

I created a pull request with a simple fix.

[jmadler]

Resolved by #379