[Matplotlib-users] Missing Module: six ?

Per your instructions, I downloaded [] and installed using the 'wizard'.  The file I'm trying to execute is currently in a PyCharm project, and the Error Trace I get is as follows:
C:\Python34\python.exe "C:/Users/Ralph/PycharmProjects/anuASTRO4x/src/Euler's Method.py"Traceback (most recent call last):
  File "C:/Users/Ralph/PycharmProjects/anuASTRO4x/src/Euler's Method.py", line 21, in <module>
    import pylab # This program requires the matplotlib python library for the plots.
  File "C:\Python34\lib\site-packages\pylab.py", line 1, in <module>
    from matplotlib.pylab import *
  File "C:\Python34\lib\site-packages\matplotlib\__init__.py", line 105, in <module>
    import six
ImportError: No module named 'six'
Euler's Method

'from matplotlib.pylab import *' calls '__init__-py' and tries [unsuccessfully] to 'import 'six'.
What do you suggest I do to correct the ImportError: No module named 'six' ?Thanks for the help, Ralph