coffea

coffea is a Python toolkit designed for columnar data analysis in High-Energy Physics (HEP), providing basic tools and wrappers for efficient manipulation of HEP event data. It integrates with modern big-data technologies like Dask, Parsl, and TaskVine to enable scaling analyses from local machines to computing clusters without code changes. The library is actively developed, currently at version 2026.4.0, with frequent, often monthly or bi-monthly, releases of its calendar-versioned major releases and backports for its 0.7.x branch.