Python’s Map(), Filter(), and Reduce() Functions Explained

Demonstrating the building blocks of functional programming in Python with code examples, mathematics, and…emojis

Wouter van Heeswijk, PhD
Towards Data Science
8 min readAug 10, 2022

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Filter() is one of the three higher-order functions that can be utilized in Python, allowing to infuse your code with functional programming structures [Photo by Najib Kalil on Unsplash]

At its roots, Python is an object-oriented programming language, built upon an imperative programming paradigm. When performing a sequence of statements, typically a structure…

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Assistant professor in Financial Engineering and Operations Research. Writing about reinforcement learning, optimization problems, and data science.