pip install of mpl 1.3.1 has issues.
It wants to install nose, but seems to be incompatible with py3.3:
Running setup.py install for nose
File "/home/nbecker/.local/lib/python3.3/site-
packages/nose/plugins/base.py", line 70
except OptionConflictError, e:
^
SyntaxError: invalid syntax
File "/home/nbecker/.local/lib/python3.3/site-
packages/nose/plugins/multiprocess.py", line 481
except (KeyboardInterrupt, SystemExit), e:
^
SyntaxError: invalid syntax