title: setup.py build doesn't work but develop does
body: <p>I have a simple python package that's importable without issue when running:</p>
  
  <p><code>python setup.py develop</code></p>
  
  <p>but not when running </p>
  
  <p><code>python setup.py install</code> </p>
  
  <p>No error occurs* when running install but I get a <code>no module named...</code> error when I attempt to import it even though I can see the package when I run <code>pip list</code>. I only have python 2.7 installed, I'm not using virtualenv, so I don't understand why <code>develop</code> works but <code>install</code> doesn't.</p>
  
  <p>(additionally running <code>build</code> then <code>install</code> also fails)</p>
  
  <hr>
  
  <p><strong>No error but a *warning I couldn't find details about...</strong>
  <a href="https://i.stack.imgur.com/bocb1.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/bocb1.png" alt="enter image description here"></a></p>
  
  <hr>
  
  <p><strong>Listed but importing will fail</strong>
  <a href="https://i.stack.imgur.com/jWhyP.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/jWhyP.png" alt="enter image description here"></a></p>
  
  <hr>
  
  <p><a href="https://i.stack.imgur.com/Vgge1.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Vgge1.png" alt="enter image description here"></a></p>