Python Polars: The Definitive Guide: Transforming, Analyzing, and Visualizing Data with a Fast and Expressive DataFrame API 1st Edition by Jeroen Janssens, Thijs Nieuwdorp
Python Polars: The Definitive Guide: Transforming, Analyzing, and Visualizing Data with a Fast and Expressive DataFrame API* is a technical book published by O'Reilly Media in early 2025 that serves as a comprehensive, hands-on guide to using the Polars library. Key Information
- Authors: Jeroen Janssens and Thijs Nieuwdorp.
- Publisher: O'Reilly Media.
- Publication Date: The exact date varies by format and retailer, but it was generally released in February/April 2025.
- Edition: 1st Edition.
- Print Length: The paperback version is approximately 501 pages.
- ISBN-13: 978-1098156084 (paperback).
Book Content and Target Audience:
The book is a practical guide designed to help users effectively leverage Polars for data manipulation and analysis, offering a faster and more memory-efficient alternative to tools like pandas.
- Target Audience: It is suitable for both seasoned data professionals (analysts, engineers, scientists) and newcomers to data science. No prior experience with pandas is required, but a specific chapter is included to help pandas users transition.
- Key Topics: The guide covers core Polars concepts such as the eager and lazy APIs, expressions (the building blocks of queries), handling various data types, joining DataFrames, and visualizing data using libraries like Altair, hvPlot, and plotnine.
- Practical Examples: It features many practical examples using real-world datasets, with all code and data available in a public GitHub repository to help readers follow along.