title: Python statsmodels OLS: how to save learned model to file
body: <p>I am trying to learn an ordinary least squares model using Python's statsmodels library, as described <a href="http://statsmodels.sourceforge.net/stable/generated/statsmodels.regression.linear_model.OLS.html#statsmodels.regression.linear_model.OLS" rel="noreferrer">here</a>.</p>
  
  <p>sm.OLS.fit() returns the learned model. Is there a way to save it to the file and reload it? My training data is huge and it takes around half a minute to learn the model. So I was wondering if any save/load capability exists in OLS model.</p>
  
  <p>I tried the <code>repr()</code> method on the model object but it does not return any useful information.</p>