title: Received 'can't find '__main__' module in '<packageName>' with python package
body: <p>I'm trying to release my first Python package in the wild and I was successful in setting it up on PyPi and able to do a <code>pip install</code>.  When I try to run the package via the command line (<code>$ python etlTest</code>), I receive the following error:</p>
  
  <p><code>/usr/bin/python: can't find '__main__' module in 'etlTest'</code></p>
  
  <p>When I run the code directly from my IDE, it works without issue.  I am using Python 2.7 and have <code>__init__.py</code> scripts where required.  What do I need to do to get this working?</p>