title: Cant execute script in parent folder
body: <p>I am trying to execute/call a python script that resides in another directory.</p>
  
  <p><strong>My Problem:</strong> When I attempt to open/call the file I get the error </p>
  
  <blockquote>
    <p>'..' is not recognised as an internal or external command, operable
    program or batch file</p>
  </blockquote>
  
  <p>My python code to execute the python file is:</p>
  
  <pre><code>os.system("../test.py abc")
  </code></pre>
  
  <p>I have also tried this but I get the same error on a DIFFERENT part of the string:</p>
  
  <pre><code>os.system(os.getcwd()+"/../test.py abc")
  # results in "c:/users/jim/work products/python/testdir/../test.py abc"
  </code></pre>
  
  <p>Error:</p>
  
  <blockquote>
    <p>'c:/users/jim/work ' is not recognised as an internal or external command, operable
    program or batch file</p>
  </blockquote>