title: why is pip so SLOW to download? (how to troubleshoot?)
body: <p>I can wget e.g. <a href="https://pypi.python.org/packages/source/c/coverage/coverage-3.6.tar.gz#md5=67d4e393f4c6a5ffc18605409d2aa1ac" rel="noreferrer">python coverage</a> and pip install the package locally quickly and without any problem, but <code>pip install coverage</code> takes <em>forever</em>.  Using pip 1.3.1 in a virtual env on Ubuntu 12.04.  Any idea what could be the hold-up?  </p>