title: How to call OPL by doopl while defining the objective function in Python?
body: <p>Dears,</p>
  <p>I have an optimization model that was built using OPL. The model works fine but I would like to use an objective function that is defined in Python. My question is can I use doopl to call the OPL model into python and use the objective function from Python (not from OPL).</p>
  <p>Thanks</p>