Windows7 with python 3.4 32bit. Downloaded and ran install according to this related question. However I have a different error, so I posted a new question.
I removed the faulty install and tried the installer from the sourceforge link off matplotlib.org. Both finish claiming to be successful, though testing results in an error (both resulting in the same error)
from matplotlib import *
Traceback (most recent call last):
File "<pyshell#2>", line 1, in <module>
from matplotlib import *
File "C:\Python34\lib\site-packages\matplotlib\__init__.py", line 105, in <module>
import six
ImportError: No module named 'six'