[Mne_analysis] visualizations and python versions

[Tero Hakala]

Hi,
I recently started using MNE-python but I am a bit confused with python 
version issues.

I understood that most development is done in python 3 and that's the 
way of the future, so I got the latest versions and went through great 
pain to get python 3, ipython, qt etc, working on our lab's stone age 
centos distribution. However, I was greatly disappointed to learn that 
now I can not make any nice visualizations, and most of the examples in 
the cookbook are not working either because they depend on pysurfer 
which depends on mayavi which depends on vtk which is not being ported 
for python 3... (or something like that)

So, which python should i use with MNE ?  Should I just downgrade and 
try to get python 2.7 things working? Or if I use python 3, how should I 
deal with visualizations?

  best regard,
     -Tero