Python <3.10 Version Incompatibility with pylate

[sam-hey]

Hello,
the pylate package requires Python version 3.10 or higher for proper functionality. When using Python 3.9, the following error occurs:

pylate/setup.py

Line 57 in 7d9d05e

python_requires=">=3.8",

def __init__(
    self, tokenize_fn: Callable, valid_label_columns: list[str] | None = None
) -> None:
TypeError: unsupported operand type(s) for |: 'types.GenericAlias' and 'NoneType'

| can not be used in python 3.9 for this type of operation.

The error can be observed in the pipeline run: Pipeline Run

[tomaarsen]

cc @NohTow this should be easy to fix with a

from __future__ import annotations

above the files where this occurs.

Or you can just stick with the original Union[...] for now.

• Tom Aarsen

[NohTow]

Oh, indeed, I dont know why we set 3.8 while we use | everywhere.
I don't know what's the best fix: upgrade the Python dependency or add from __future__ import annotations in almost every file?
cc @raphaelsty

[sam-hey]

Just a quick note: the target Python version for Ruff is set to 3.10

pylate/ruff.toml

Line 34 in 7d9d05e

target-version = "py310"

[raphaelsty]

Let's follow Sentence Transformer, and import from future, what do you think about this @NohTow ? Once ST put a higher minimal python version we will do as well