"ImportError: No module named tkinter" when using Pmw
Question: Here's my problem: I'm running the code in
[this](http://code.activestate.com/recipes/271249-how-to-create-linked-
optionmenus-or-other-lists-in/) example. I have Python 2.7 and 3 installed on
my RaspberryPi but I have checked and double-checked, and I am running the
code in 2.7. I've installed Pmw 2.0.0 under 2.7, not 3, but when I try to run,
I get the "ImportError: No module named tkinter" error. I use Tkinter all the
time, so it usually works fine, and I've done a search to verify that I'm
definitely calling "Tkinter", not "tkinter", so I think it has to be a problem
with Pmw, which also seems to be indicated by the traceback (posted in full at
the bottom of my question). I can't for the life of me find a specific place
where Pmw is looking for lower-case "tkinter", and I'm at a loss for how to
work around this. I'm not eager to switch platforms--this is for work, so
unless this is unfixable, I need to stick with Tkinter. Oh, and I am pretty
new to Python, so I would love to find out that it's a simple problem that
someone on here can spot easily.

import sys; print sys.path gives me:

    
    
    ['/home/pi/Desktop', '/home/pi', '/usr/bin', '/usr/local/lib/python2.7/dist-packages/distribute-0.6.28-py2.7.egg', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-linux2', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages', '/usr/lib/pymodules/python2.7']
    

The full traceback is:

    
    
    Traceback (most recent call last):
      File "/home/pi/Desktop/LinkedMenusSample.py", line 151, in <module>
        Pmw.initialise(root)
      File "/usr/local/lib/python2.7/dist-packages/Pmw/Pmw_2_0_0/lib/PmwLoader.py", line 131, in __getattr__
        self._initialise()
      File "/usr/local/lib/python2.7/dist-packages/Pmw/Pmw_2_0_0/lib/PmwLoader.py", line 89, in _initialise
        raise ImportError(msg)
    ImportError: No module named tkinter
    


Answer: Maybe I can help you on how to remove the error.

here are two thoughts:

1) you use python 2.xx and have installed the python 3 pwm module (Tkinter was
renamed to tkinter from Python 2 to 3)

2) you do the following before the import and hope it helps:

    
    
    #import tkinter
    #Traceback (most recent call last):
    #  File "<pyshell#11>", line 1, in <module>
    #    import tkinter
    #ImportError: No module named tkinter
    
    import sys, Tkinter
    sys.modules['tkinter'] = Tkinter # put the module where python looks first for modules
    #import tkinter # now works!
    

