title: Python pip extremely slow to download (stuck at Colecting...)
body: <p>I don't know why, it's been some weeks, pip is slow like hell to retrieve a package (like 5 minutes per package).</p>
  
  <p>it hangs at "Collecting [...]"</p>
  
  <p>any idea ? </p>
  
  <p>I tried different versions of pip and of python / pypy, same problem.</p>
  
  <p>There are other questions on that, but there are from 2013/2014 which is pretty old and maybe not applicable (at least, I tried them with no result)</p>