Polars

Overview

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.

Quick Start

Installation and Basic Usage

Pin a recent 1.x (examples here use the Polars 1.x API):

uv add 'polars>=1.0'

Basic DataFrame creation and operations:

import polars as pl