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Polars

Polars is a fast DataFrame library for Python, written in Rust. It was created by Ritchie Vink in 2020 as a modern alternative to Pandas. It's become popular for a few reasons:

Speed – often much faster than Pandas on larger workloads
Memory efficiency – typically uses less RAM than Pandas
Clean API – expression-based syntax that's easy to read

Pandas is still the most popular DataFrame library, but I and many others now prefer Polars as a more modern alternative.

I particularly like Polars for:

Large datasets where performance matters
ETL pipelines that need to be snappy
Teams that want fewer Pandas quirks