Remove the experimental $expr subnamespace for Series
#827
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| - The experimental subnamespace `$expr` on `Series` is removed as it was | ||
| barely documented and doesn't have additional value compared to applying | ||
| methods directly on `Series` (#827). |
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Sorry I have not answered your question adequately.
In fact, under $expr, all the methods of the Expr class are stored, so there are functions that cannot be used without it.
In Python, the methods of the Series class are almost the same as what we do with $expr, since the methods of Expr are dispatched as follows.
https://github.com/pola-rs/polars/blob/24c0f474108e6dcf095068823ba0925b31c4e3b4/py-polars/polars/series/utils.py#L28-L36
So we should aim to be able to do the same thing without $expr, and until that is achieved $expr may be worthwhile.
But as I commented elsewhere, I think very few users are using this at the moment.
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Ah ok I see, the example I mentioned in another PR only worked because $add() was already implemented for Series. I'll think more about how we can automatically dispatch the other methods without using $expr. Thanks for the explanation
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So we should aim to be able to do the same thing without
$expr
Done in #831
Follow-up of #819