title: executing perl script from python
body: <p>I`m trying to executo Perl script from python script, but it seems like it has not been executed!
  using this command in python: </p>
  
  <pre><code>os.popen('dump_hash.pl {}'.format(scn_filepath))
  </code></pre>
  
  <p>this is the dump_hash.pl script: </p>
  
  <pre><code>$path = &lt;STDIN&gt;;
  require "$path";
  open (OUTFILE, "+&gt;dumpered_hash");
  print OUTFILE Dumper("\%...");
  close (OUTFILE);
  </code></pre>
  
  <p>and the script stucks when trying to open 'dumpered_hash' as readable file. and when I run ls command in shell, the directory doesn`t have dumpered_hash file.</p>
  
  <p>thanks you.</p>