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Unlocking the Power of Python’s functools – The Hidden Gem for Advanced Programming 🚀

Elshad Karimov
3 min readFeb 19, 2025
Photo by Michael Dziedzic on Unsplash

When we think of Python’s built-in modules, we often focus on os, sys, collections, or itertools. But there's a hidden powerhouse that many developers overlook—functools.

The functools module is a goldmine for writing more efficient, optimized, and maintainable Python code.

🔹 What is functools?

Python’s functools is a standard library module that provides higher-order functions—functions that operate on or return other functions.

With functools, you can:
Speed up execution with memoization
Modify function behaviors dynamically
Write cleaner, more readable code
Optimize performance with caching

🔹 Key Features & How to Use Them

Let’s explore the most powerful functions in functools and see real-world examples of how they can transform your Python coding experience.

1️⃣ Speed Up Expensive Computations with lru_cache

Have you ever written a recursive function that’s painfully slow? Instead of recalculating results every time, we can use…

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Elshad Karimov
Elshad Karimov

Written by Elshad Karimov

Software Engineer, Udemy Instructor and Book Author, Founder at AppMillers

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