Steve Dower added the comment:
Thanks for the write up. This has already been resolved for 2.7.13 (where
install will complete but pip won't be available), and as you discovered you
should never set PYTHONHOME (or PYTHONPATH) globally, since it will affect
every version and not just the one yo
New submission from Anish Patel:
Originally created issue:
https://github.com/pypa/pip/issues/4033#issuecomment-256865622
Copied text below:
I had already Python 3 installed with the environment variable
PYTHONHOME=C:\Program Files\Python35. I attempted to install Python 2, but
received this
