After merging #2000. Pip will now fail silently in a clean virtualenv. The problem is that doing pip install ... produces this in sys.argv which fails our don't do any dependency checking check .
pip install ...
['-c', 'egg_info', '--egg-base', 'pip-egg-info']
I'm not quite sure the fix yet actually, and I don't have time to read the entire source of pip to find out what the above means.
Unless @rgommers has a ready solution for this, I'm inclined to revert that merge, so we're back to at least giving a good error message for 0.6.
This can't be entirely accurate though because it fails trying to build numpy AFAICT from my build log. TBD...
(Part of) the problem is that statsmodels.egg-info is in our source distributions since c9a249e changed the custom sdist.
BLD: Use sdist from distutils. Closes #2003.
No that doesn't matter as I thought it did.
I think this is a duplicate of #1897.