title: Should we gitignore the .python-version file?
body: <p>I have a <code>.python-version</code> file, and when I create a Python repo with github and specify that it should have a <code>.gitignore</code>, it adds the <code>.python-version</code> file to it. It seems to me that that file should NOT be ignored since other people running the code on different machines would want to know what version of Python they need.</p>
  
  <p>So why is it <code>.gitignore</code>d?</p>