title: ImportError: No module named <something>
body: <p>I know this question has been asked multiple times. I have read through all of them but could not resolve my issue.The following is my directory structure.</p>
  
  <pre><code>ankur
       --ankur1
               __init__.py
               util.py
       --ankur2
               main.py
       --__init__.py
  </code></pre>
  
  <p>In the main.py, I am importing the following.</p>
  
  <pre><code>import ankur.ankur1.util
  </code></pre>
  
  <p>When I execute the code in windows, it works perfectly fine. But in Linux, I get the following error.</p>
  
  <pre><code>ImportError: No module named ankur.ankur1.util
  </code></pre>
  
  <p>I also read the official python <a href="https://docs.python.org/2/tutorial/modules.html#packages" rel="noreferrer">doc</a> on Modules and Packages.</p>