title: Python sub package imports
body: <p>[Edit]: My problem is unrelated to what I’m asking here. My machine has python 2.7 and 3.6 installed. Requests module was installed for 2.7 site-packages but not 3.6</p>
  
  <p>I’m trying to import requests into a sub directory. I’m not aware of the best way to do this</p>
  
  <p>My folder structure is </p>
  
  <pre><code>Project
    - project1
       - sub1
         - sub1.py &lt;—- trying to use requests here
    - tests
  </code></pre>
  
  <p>But in the future if I want to use requests across the whole project, what’s the most effective was to import it?</p>