debian wheezy: Cannot fetch index base URL http://pypi.python.org/simple/

https://stackoverflow.com/questions/21294997/pip-connection-failure-cannot-fetch-index-base-url-http-pypi-python-org-simpl

Когда пытаемся сделать yum install python-pip; pip install --updrade pip то получаем
Cannot fetch index base URL http://pypi.python.org/simple/

Фикс:  pip install --index-url=https://pypi.python.org/simple/ --upgrade pip
(внимание на https://)