[Python] How do I save a scikit-learn model? [duplicate]

Say, I have finished building a regression model in Python, as below:

from sklearn import linear_model
model = linear_model.LogisticRegression().fit(X_train, Y_train)


How do I save the model that I have built so I could shut down my computer and work on it the next day without having to rerun the code to get the model again?

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