The glamourous world of data testing! A lightweight flexible data contracts library called Wimsey[0].

The main pitch is you have minimal dependencies and overheads and can run tests natively on pandas/polars/pyspark/dask/duckdb/etc (thanks to the awesome Narwhals project)

It's mostly there for v1 right now, but kean to add a tiny bit more functionality, and well a lot more docs. Working on something that's automated alongside the test suite, which should keep things reliable and fresh (I'll find out soon enough)

[0] https://github.com/benrutter/wimsey / https://codeberg.org/benrutter/wimsey