title: python: can't open file 'hello_world': [Errno 2] No such file or directory
body: <p>I can't open a shell from the cmd promt. Pip works and i can type some commands but keep getting the error.</p>
  
  <pre><code> Directory of C:\Python27
  
  03/03/2017  08:07 PM    &lt;DIR&gt;          .
  03/03/2017  08:07 PM    &lt;DIR&gt;          ..
  03/03/2017  07:23 PM    &lt;DIR&gt;          DLLs
  03/03/2017  07:23 PM    &lt;DIR&gt;          Doc
  03/03/2017  08:07 PM    &lt;DIR&gt;          dojopython
  03/03/2017  07:23 PM    &lt;DIR&gt;          include
  03/03/2017  07:52 PM    &lt;DIR&gt;          Lib
  03/03/2017  07:23 PM    &lt;DIR&gt;          libs
  05/23/2015  10:29 AM            38,584 LICENSE.txt
  05/23/2015  10:23 AM           418,960 NEWS.txt
  05/23/2015  09:44 AM            26,624 python.exe
  05/23/2015  09:44 AM            27,648 pythonw.exe
  05/10/2015  06:01 PM            53,986 README.txt
  03/03/2017  07:36 PM    &lt;DIR&gt;          Scripts
  03/03/2017  07:23 PM    &lt;DIR&gt;          tcl
  03/03/2017  07:23 PM    &lt;DIR&gt;          Tools
                 5 File(s)        565,802 bytes
                11 Dir(s)  183,884,189,696 bytes free
  
  C:\Python27&gt;python #
  python: can't open file '#': [Errno 2] No such file or directory
  </code></pre>