Join us and get access to hundreds of tutorials and a community of expert Pythonistas.

Unlock This Lesson

This lesson is for members only. Join us and get access to hundreds of tutorials and a community of expert Pythonistas.

Unlock This Lesson

The DRY Principle

Give Feedback

The DRY or “Don’t Repeat Yourself” principle is a software development practice aimed at reducing repetition of information. In this lesson, you learned how to apply DRY when making comparisons in your Python code.

This code sample from the lesson illustrates how to apply DRY:

name = 'Mahdi'
people_i_like = ['Mahdi', 'John', 'Linda']
if name in people_i_like:
    print 'yay!'

Comments & Discussion

Become a Member to join the conversation.