Python Polars: The Definitive Guide

Transforming, Analyzing, and Visualizing Data with a Fast and Expressive Dataframe API

By: Jeroen Janssens, Thijs Nieuwdorp

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Paperback | 28 February 2025

At a Glance

Paperback
400 Pages

Dimensions(cm)
23.4 x 17.9 x 3.0

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Want to speed up your data analysis and work with larger-than-memory datasets? Python Polars offers a blazingly fast, multithreaded, and elegant API for data loading, manipulation, and processing. With this hands-on guide, you'll walk through every aspect of Polars and learn how to tackle practical use cases using real-world datasets.

Jeroen Janssens and Thijs Nieuwdorp from Xomnia in Amsterdam show you how this superfast DataFrame library is perfect for efficient data wrangling, ETL pipelines, and so much more. This book helps you quickly learn the syntax and understand Polars' underlying concepts. You don't need to have experience with pandas or Spark, but if you do, this book will help you make a smooth transition.

With this definitive guide at your side, you'll be able to:

Process larger-than-memory datasets at record speed
Apply the eager, lazy, and streaming APIs of Polars and decide when to use them
Transition smoothly from pandas or Spark to Polars
Integrate Polars into your existing code base
Work with Arrow and Parquet to efficiently read and write data
Translate complex ETL tasks into efficient and elegant queries

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