title: A guide for updating packages on PyPi
body: <p>I used <a href="https://packaging.python.org/tutorials/packaging-projects/" rel="noreferrer">this guide</a> to install a new package on PyPi.</p>
  
  <p>Now, I want to update the package. 
  Since I found no guide for this, I tried to do it myself: I updated the version from "1.0.0.dev1" to "1.0.0.dev2" and re-installed. It did not work: I got:</p>
  
  <pre><code>Uploading tee_table-1.0.0.dev1-py3-none-any.whl
  
  HTTPError: 400 Client Error: File already exists. See https://pypi.org/help/#file-name-reuse for url: https://upload.pypi.org/legacy/
  </code></pre>
  
  <p>I also read <a href="https://stackoverflow.com/q/13919830/827927">this question</a> but the information seems outdated (from 2012).</p>
  
  <p>Is there a simple user guide that describes how to  upload a new version of a package to PyPi?</p>