How to Do a Binary Search in Python

How to Do a Binary Search in Python

by Bartosz Zaczyński Updated Reading time estimate 1h 1m intermediate algorithms

Binary search is a classic algorithm in computer science. It often comes up in programming contests and technical interviews. Implementing binary search turns out to be a challenging task, even when you understand the concept. Unless you’re curious or have a specific assignment, you should always leverage existing libraries to do a binary search in Python or any other language.

In this tutorial, you’ll learn how to:

  • Use the bisect module to do a binary search in Python
  • Implement a binary search in Python both recursively and iteratively
  • Recognize and fix defects in a binary search Python implementation
  • Analyze the