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#polars (3)

Cheat sheets (3)

polars — Fast DataFrames on Rust + Arrow

Package-level reference for polars — install, versioning, extras, and gotchas. The Rust-powered Arrow-native alternative to pandas.
pip package polars dataframes arrow

qsv — CSV Toolkit

Comprehensive reference for qsv: count, headers, stats, moarstats, select, search, sort, dedup, frequency, join, sqlp, luau, apply, schema, validate, sample, split, MCP server, and more — with examples and outputs.
qsv csv cli data rust polars xsv tabular mcp web-researched

polars — Fast DataFrames

High-performance DataFrames with a lazy expression API. Covers read/write, select, filter, group_by, joins, LazyFrame, datetime, string operations, and pandas interop.
python polars dataframes data csv parquet sql