title: Unable to start python in windows
body: <p>Earlier I had installed Python 3.5 using chocolatey but when I found that libraries that I need to make use only is allowed only for Python version 2 - I uninstalled Python 3.5 and then install Python 2.7.3 from Control Panel.</p>
  
  <p>I ensured that I set the PATH variable correctly for Python - </p>
  
  <pre><code>PATH=....;C:\Python27
  </code></pre>
  
  <p>but still when I invoke python from prompt I get the below error :</p>
  
  <pre><code>C:\&gt;python 
  Cannot find file at '..\\lib\python3\tools\python.exe' 
  (C:\ProgramData\chocolatey\lib\python3\tools\python.exe). This usually 
  indicates a missing or moved file. 
  </code></pre>
  
  <p>How do I set the chocolatey package manager issue resolved?                                                                                 </p>