title: Saving a cross-validation trained model in Scikit
body: <p>I have trained a model in <code>scikit-learn</code> using <code>Cross-Validation</code> and <code>Naive Bayes</code> classifier. How can I persist this model to later run against new instances?</p>
  
  <p>Here is simply what I have, I can get the <code>CV</code> scores but I don't know how to have access to the trained model</p>
  
  <pre><code>gnb = GaussianNB() 
  scores = cross_validation.cross_val_score(gnb, data_numpy[0],data_numpy[1], cv=10)
  </code></pre>