Counting With Python’s Counter


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.

In this video course, you’ll learn how to:

Count several repeated objects at once
Create counters with Python’s Counter
Retrieve the most common objects in a counter
Update object counts
Use Counter to facilitate further computations
Implement Counter instances as multisets

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