title: what does pip install actually do?
body: <p>Super newb question here..</p>
  <p>What does pip install actually do?</p>
  <p>Assuming the pypi package is a tarball...</p>
  <p>Does it just download the tar.gz, unpack it and run setup.py?</p>
  <p>Does it add the downloaded package to the site_packages folder?</p>
  <p>I want to create a pip installable pkg using pypiserver so my colleagues can download my pkg in a painless way, but am a little unsure exactly what to include beyond the actual .py scripts.</p>
  <p>Any guidance would be appreciated</p>