I know this is an old thread, but I encountered this issue today and wanted to share my solution to the problem because I haven't seen this solution elsewhere on SO.
My environment: Python 2.7.12/2.7.14 on Ubuntu 12.04.5 LTS in a virtualenv, pip version 1.1.
My Errors:
pip install nose
in console:
Cannot fetch index base URL http://pypi.python.org/simple/
in ~/.pip/pip.log:
Could not fetch URL http://pypi.python.org/simple/: HTTP Error 403: SSL is required
Curious for me because I had been running these same commands in a script without issue for about a year.
this fixed it:
pip install --index-url=https://pypi.python.org/simple/ nose
(note the https)
Hope this helps someone!
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