title: How to share imports between modules?
body: <p>My package looks like this:</p>
  
  <p><a href="https://i.stack.imgur.com/DPgqO.png" rel="noreferrer"><img src="https://i.stack.imgur.com/DPgqO.png" alt="enter image description here"></a></p>
  
  <p>These helpers, since they are all dealing with <code>scipy</code>, all have common imports:</p>
  
  <pre><code>from matplotlib import pyplot as plt
  import numpy as np
  </code></pre>
  
  <p>I'm wondering if it is possible to extract them out, and put it somewhere else, so I can reduce the duplicate code within each module?</p>