3 tools
Apache Software Foundation · Data catalogs & formats
Language-independent columnar in-memory format and libraries that let DuckDB, Polars, pandas, Spark and databases exchange tables without copying
pandas development team (NumFOCUS) · DataFrames & array computing
The standard Python DataFrame library for labeled tabular data, time series and I/O to CSV, Excel, SQL, Parquet and more
Polars (Ritchie Vink and contributors) · DataFrames & array computing
Rust-based DataFrame library with Python, Rust, Node and R bindings offering lazy query optimization, multithreading and Arrow-native memory
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