title: OSError: [Errno 13] Permission denied Python subprocess.call()
body: <p>I'm trying to run a subprocess in python but I get error message:
      OSError: [Errno 13] Permission denied</p>
  
  <pre><code>cp2 = cp2.lstrip("~")
  cp2 = wilixdirectory+"/Users/"+loggedusr+cp2 
      if cp3 == None:
      subprocess.call([cp2])
  else:
      subprocess.call([cp2, cp3])
  </code></pre>
  
  <p>cp2 and cp3 are user inputs for directories</p>
  
  <p>wilixdirectory is a directory</p>
  
  <p>loggedusr is a string like "Bob" or "Joe"</p>
  
  <p>The code is running out of Unix</p>