http_proxy

Python: Using pip with a squid proxy

In a production datacenter it would not be uncommon for internet access to be limited to domains whitelisted on a web proxy such as Squid.  If this is the case, and you are using pip to install packages, then you will need to: Have your Squid administrators whitelist pypi.python.org Add the “–proxy” switch when invoking Python: Using pip with a squid proxy