title: Python3 import file from directory starting with number
body: <p>I tried the answers in <a href="https://stackoverflow.com/questions/9090079/in-python-how-to-import-filename-starts-with-a-number">this question</a> to no avail so I thought it'd be worth a separate question. The directory layout is as follows:</p>
  
  <pre><code>aale/
       2/
         2.py
         __init__.py
       3/
         3.py
         __init__.py
       __init__.py
  </code></pre>
  
  <p>The names are unfortunately unable to change (this is the layout given to us for a HW problem). I am trying to import <code>2</code> from <code>3</code> but it doesn't seem to be working. I tried using <code>importlib</code> as:</p>
  
  <p><code>two = importlib.import_module('2.2')</code> as well as
  <code>two = importlib.import_module('2')</code></p>
  
  <p>which didn't work also (gave a <code>ModuleNotFoundError: No module named '2'</code> error). Any help / other methods would be appreciated. I am using Python 3.6.</p>