[Neuroimaging] Drop Python 2.6 for nibabel?

[Gael Varoquaux]

On Wed, Apr 06, 2016 at 11:15:26PM -0700, Nathaniel Smith wrote:
> See also a red hat employee's opinion on this:
> http://www.curiousefficiency.org/posts/2015/04/stop-supporting-python26.html

Despite all the technical solutions listed on that blog post, most
clusters sysadmins don't support Python2.7 (because they run a vanilla
Centos/RH), and most cluster users suffer. So I find parts of this blog
post a bit hypocritical. Users are taken hostage of a tug-of-war between
sysadmin and developpers.

Gael