title: How to pass an out parameter in oracle stored procedure for python
body: <p>I have a question, I've tried to pass an out parameter but appears an error, this is my code:</p>
  
  <pre><code>cursor = connection.cursor()
  lOutput = cursor.var(cx_Oracle.STRING)
  lOutput.setvalue(0, '')
  cursor.callproc("SOME_PROC',[lOutput])
  return lOutput .getvalue(0)
  </code></pre>
  
  <p>Please help me. thanks in advance.</p>