Polars is a lightning-fast DataFrame library for Python and Rust built on Apache Arrow. Work with Polars' expression-based API, lazy evaluation framework, and high-performance data manipulation capabilities for efficient data processing, pandas migration, and data pipeline optimization.
Expressions are the fundamental building blocks of Polars operations. They describe transformations on data and can be composed, reused, and optimized.
Lazy (LazyFrame): Operations build a query plan, optimized before execution
Библиотека Fast DataFrame (Apache Arrow). Выбор, фильтрация, group_by, соединения, отложенная оценка, ввод-вывод CSV/Parquet, API выражений для высокопроизводительных рабочих процессов анализа данных. Источник: ovachiever/droid-tings.