HTTPError: 404 Client Error: Not Found for url: https://pypi.org/simple/tkinter/ code example
Example: Collecting pipnev
pip --version
returns: pip 9.0.1 from /Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg (python 2.7)
pip --version
returns: pip 9.0.1 from /Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg (python 2.7)