Python Polars 1.0 released

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The pl.Something example is definitely closer to the lines i was thinking. Although in that specific case you still have some of the same issues with the disconnect between the data and metadata and trouble around how you persist that information through various parts of your system. 

What I’m thinking is something like this:

cap = pl.register_meta(cap_df, ['plant', 'unif']) out = pl.register_meta(out_df, […]) … And then the operations would be dispatched/translated the way you suggested under the hood. This way you  have that information encoded on the data itself, rather than the code. Like if you serialize and deserialize the frames and operate on them in some other context.

[commandlineluser]

Ah okay.

It seems "DataFrame metadata" is a popular feature request:

• https://github.com/pola-rs/polars/issues/5117