title: running python executable in linux
body: <p>I've found a few other people asking this question, but the answers for their problem are not helping me. I trying to learn python and trying to make a file executable.</p>
  
  <p>The practice script runs when I type <code>python ./userPrompt.py</code>.
  But when I try to run it as an executable (just <code>./userPrompt.py</code>).</p>
  
  <p>I've successful change it <code>chmod +x</code>
  And here's what i have in the top line of the file: </p>
  
  <pre><code>    #! /user/bin/env python 
  </code></pre>
  
  <p>and here's the error I get</p>
  
  <pre><code>   bash: ./userPrompt.py: /user/bin/env: bad interpreter: No such file or directory
  </code></pre>
  
  <p>But the thing is if I go to <code>/user/bin</code> I can find <code>env</code>. So it definitely exists. Why can't Ubuntu find it??</p>
  
  <p>I appreciate any help people can give me on this. </p>