python: Shouldn't Expr.str.to_decimal's argument be keyword-only?

[eitsupi]

Description

We can currently specify inference_length by position, but I don't think it is clear what the first argument 100 represents in the following case:

import polars as pl

df = pl.DataFrame(
    {
        "numbers": [
            "40.12",
            "3420.13",
            "120134.19",
            "3212.98",
            "12.90",
            "143.09",
            "143.9",
        ]
    }
)
df.with_columns(numbers_decimal=pl.col("numbers").str.to_decimal(100))

So shouldn't this argument be keyword-only?

[ritchie46]

Yeah, I see the point. We have to wait for 2.0 though.

[eitsupi]

Thanks. Perhaps we can deprecate specify by position (#20570)?