title: Python and pip, list all versions of a package that's available?
body: <p>Given the name of a Python package that can be installed with <a href="https://pip.pypa.io/en/stable/" rel="noreferrer">pip</a>, is there any way to find out a list of all the possible versions of it that pip could install? Right now it's trial and error.</p>
  
  <p>I'm trying to install a version for a third party library, but the newest version is too new, there were backwards incompatible changes made. So I'd like to somehow have a list of all the versions that pip knows about, so that I can test them.</p>