Using ruff on Windows through pre-commit - problem and solution

[jond01]

I use ruff as a pre-commit hook as advised and ran into a problem on Windows (10):

pre-commit run ruff --all-files

Would output:

exit code: 3221225781

I first tried to install ruff with pip, but it didn't help.
What solved the issue for me was installing Rust:
https://www.rust-lang.org/tools/install

I hope this will help users in the future.
Maybe it's even worth mentioning in the installation part if it occurs to many others:
https://beta.ruff.rs/docs/installation/
Currently, there are no special instructions for Windows.

[MichaReiser]

Uhh, that's strange. Installing ruff with pip should work out of the box on Windows (to my knowledge).

Can you tell us a little more about your setup. What CPU architecture are you using? Or can you share the log for installing ruff (I've never done this myself but found it on StackOverflow):

pip install ruff --log LOG_FILE

and then share the content of LOG_FILE with us. If it doesn't work, don't bother with it.

[charliermarsh]

Interesting, we do build wheels for Windows so it should work fine without a Rust toolchain. Maybe something specific to the architecture?

[jond01]

Thank you both for responding!
To be clear, installing ruff on my machine with pip and using it was successful from the start.
The issue occurred only when using ruff as a pre-commit hook, which to the best of my knowledge and checks should do the same, but it didn't work smoothly before downloading Rustup (and installing Rust).
The machine's architecture is standard - AMD 64 (ruff-0.0.265-py3-none-win_amd64.whl is downloaded with pip).

I've opened this discussion to see if this small issue reoccurs for others, right now it doesn't seem the case 🙂

[MichaReiser]

Hmm that's weird. I wonder what's happening.

I booted into my windows (AMD64), installed pre-commit, and set up the ruff hook. I must admit, I was too lazy to uninstall Rust, but I observed the processes that pre-commit spawns and I didn't see any rust process. I'm curious why pre-commit tries to install from source.

Is my assumption correct that you copied the pre-commit configuration from Ruff's website and aren't using local paths?

[jond01]

Is my assumption correct that you copied the pre-commit configuration from Ruff's website and aren't using local paths?

Yes, correct.

I admit that I tried to reproduce it locally by uninstalling Rust (with rustup), and the issue didn't reoccur. It happened only before installing Rust the first time.