Counting With Python's Counter (Overview)

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