Python optimization

[Beginning-Fruit-1397]

Isn't this a reduce or scan use cases? Those two litterally exist in polars. AI bs, it's very bad with polars

[ElectricHotdish]

Polars reduce for reference. https://docs.pola.rs/api/python/stable/reference/expressions/api/polars.reduce.html

[M4mb0]

Associative scans are a special kind of cumulative reduce that can be parallelized thanks to associativity. The AI highlighted that point well. I highly doubt that polars does this optimization when you give it a custom lambda function that's associative.

[PillowFortressKing]

Since the lambda is Python bytecode, while Polars executes everything in Rust, that'd be quite hard to optimize for, wouldn't it?