title: pip install from specific setup.py
body: <p>I created a python 3.3 app on RedHat's Openshift cloud service. By default it has setup.py for my project. I'm learning Udemy course called "Build a SaaS app with Flask" (<a href="https://github.com/nickjj/build-a-saas-app-with-flask" rel="noreferrer">source code</a>)  Now I wanted to use python-click, as recommended by the course. It needs another setup.py for cli project; so to put that file in the project root folder, I renamed it to <strong>setup_cli.py</strong>. Now there are two files: <strong>setup.py</strong> and <strong>setup_cli.py</strong>.
  Pip install seems to automatically look into setup.py.</p>
  
  <pre><code># See Dockerfile in github source
  pip install --editable &lt;from setup_cli.py&gt;
  </code></pre>
  
  <p>Can <code>pip install --editable</code> be used to point to setup_cli.py?</p>