خرید و دانلود نسخه کامل کتاب انگلیسی Python Polars 2025

“Python Polars: The Definitive Guide” by Jeroen Janssens and Thijs Nieuwdorp is a comprehensive resource for data professionals seeking to enhance their data analysis capabilities using the Polars library. Polars is a high-performance DataFrame library designed for efficient data loading, manipulation, and processing, particularly with larger-than-memory datasets. The authors, both experienced data scientists from Xomnia in Amsterdam, provide readers with practical insights into leveraging Polars for tasks such as data wrangling and ETL pipelines. The book offers hands-on guidance, enabling readers to tackle real-world use cases with ease.

Structured to facilitate a smooth transition from other data processing tools like pandas or Spark, the guide delves into various aspects of Polars, including its eager, lazy, and streaming APIs. Readers will learn how to integrate Polars into existing codebases and efficiently read and write data using formats like Arrow and Parquet. The book also covers translating complex ETL tasks into efficient and elegant queries, making it an invaluable resource for those aiming to process larger-than-memory datasets at record speed.