Add python 3.14 spport

[Vincenthays]

No description provided.

[Jazzinghen]

I was wondering if there was any update on this pull request.

[Jazzinghen]

Oh? Thank you for this work @Vincenthays, this really means a lot!

[Vincenthays]

Hello @Jazzinghen,
I got it working locally, but the CI is still failing. I suspect there are other dependencies that don’t support Python 3.14 yet.

[surister]

@Vincenthays Do you have a link to the failing CI?

[Vincenthays]

@surister https://github.com/Vincenthays/connector-x/actions/runs/19772942907/job/56660527176

[surister]

I tested it locally on python3.14, cffi builds just fine. It's probably missing a c header library in the pipeline environment. On the other hand pyarrow will have to be upgraded, it's currently pinned at 18.1.0 which does not have python14 build, it should be upgraded if possible to the latest.

[Vincenthays]

I’m not able to force pyarrow = ">=22" on my side — even after updating the constraint in connectorx-python/pyproject.toml
If you have any idea what might be preventing the upgrade, I’m all ears @surister

[Jazzinghen]

I can try locally as well, however it seems like it might be necessary to explicitly install libffi-dev on the runner?
It sounds strange to me because it should have been an issue even in the past.
I'll see if I can do something as well.

[Vincenthays]

it worked 🎉
https://github.com/Vincenthays/connector-x/actions/runs/19861980055/job/56914241598#logs
I had to upgrade numpy, pytest and pytest-benchmark

[Jazzinghen]

Woah!
I have been also trying to make it work, however I might have gone a bit in a strange way.
One thing I am wondering is why it was OK to not have python-dev before. It's as if something else installed it 🤔

[Jazzinghen]

If you want to check I made some updates that make the CI pass:
https://github.com/Jazzinghen/connector-x/actions/runs/19882651126/job/56983701481