unable to install dependency "six"

[brianashpugh]

We are currently unable to install a few dependencies in requirements.txt because they are preinstalled by distutils on our Vagrant box.

Context on this issue here: pypa/pip#3165

The recommended solution is to add the --ignore-installed flag on the pip -r requirements.txt line of the provisioning script.

[brianashpugh]

I deployed the fix and the site is up, but there's some sketchiness about the pip install in the build log (attached). We can come back to this change if this ends up causing problems.

There's an unanswered Stack Overflow for this error message. Maybe it will present a fix (other than upgrading Python) later on.

In the meantime, site is up.