Counting Objects Using Python's Counter

Published: 10 March 2022
on channel: Real Python

4,478

139

Counting several repeated objects at once is a common problem in programming. Python offers a bunch of tools and techniques you can use to approach this problem. However, Python’s Counter from collections provides a clean, efficient, and Pythonic solution.

This dictionary subclass provides efficient counting capabilities out of the box. Understanding Counter and how to use it efficiently is a convenient skill to have as a Python developer.

This is a portion of the complete course, which you can find here:
https://realpython.com/courses/counti...

The rest of the course covers how to:

- Use Counter in several practical examples
- Use additional methods like .most_common and .items
- Implement Counter instances as multisets

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