title: auto.arima() equivalent for python
body: <p>I am trying to predict weekly sales using <strike> ARMA </strike> ARIMA models. I could not find a function for tuning the order(p,d,q) in <code>statsmodels</code>. Currently R has a function <code>forecast::auto.arima()</code> which will tune the (p,d,q) parameters. </p>
  
  <p>How do I go about choosing the right order for my model? Are there any libraries available in python for this purpose?</p>