if you have troubles installing

If you have any trouble installing matplotlib, particularly if you get
error messages along the lines of

  File "C:\Python23\Lib\site-packages\matplotlib\transforms.py", line
189, in ?
    from _transforms import IDENTITY, LOG10, POLAR, Func, FuncXY
ImportError: cannot import name POLAR
>>>

Try removing site-packages/matplotlib and reinstalling.

JDH