title: Writing list of import modules in a separate .py file
body: <p>I have a long list of import modules, something like this:</p>
  
  <pre><code>import x
  import y
  .
  .
  </code></pre>
  
  <p>How can I write these all imports in one line? I come from C programming and see people doing #include "all_lib.h".
  Is there a equivalent or better pythonic way of doing this ?</p>
  
  <p>Thanks.</p>