Comprehensions and iteration

A comprehension is a filter and a transform in one line. Readable when the logic is small, unreadable the moment you nest three of them.

10m
Beginner

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Video by Bro Code · YouTube

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Overview

What this lesson covers

Transform and filter a sequence in one expression
Build dict and set comprehensions
Know when a plain loop is clearer

This lesson sits in Python Foundations for Data, part of Python for Data Work. It assumes what came before it and leads directly into the next lesson in the module.

In this lesson you will:

Transform and filter a sequence in one expression
Build dict and set comprehensions
Know when a plain loop is clearer

Resources

pandas documentationThe official reference for the tools used in this lesson.