Define all errors in `./src/huggingface_hub/errors.py`

[Wauplin]

Custom exceptions are defined in various places across the codebase. For consistency, we should define them all in ./src/huggingface_hub/errors.py.

Requested by @albertvillanova in huggingface/datasets#6296.

[Y4suyuki]

Hi, I'm interested in taking on this issue. It seems like a great starting point for me.

[Wauplin]

Hi @Y4suyuki, thanks for proposing your help on this issue! Do you need any additional information before giving it a try or is it clear? Happy to review a PR or answer any questions. I do think it'd be best to start a PR only with a few errors and then extend it once we've agreed on how to proceed. Thanks in advance!

[Y4suyuki]

Hi @Wauplin , I've created a PR that moves several custom errors into errors.py.

I have one question:
Do functions closely related to errors, like _parse_text_generation_error , also need to be moved to errors.py or errors.py simply cotntains custom errors only?

I thought errors.py should simply contains custom errors and implemented so in PR but I'm asking just in case.

[Wauplin]

Do functions closely related to errors, like _parse_text_generation_error , also need to be moved to errors.py or errors.py simply cotntains custom errors only?
I thought errors.py should simply contains custom errors and implemented so in PR but I'm asking just in case.

Yes, you're absolutely right! We only want errors to be defined in errors.py. Any other logic might be hard to maintain if it causes circular imports for example. So let's keep errors.py minimal as you did in the PR. Thanks for your contribution and kicking off this topic!! 🔥

[010kim]

@Wauplin Hello! I'm relatively new to this repository, and I want to help and contribute. I see that the commits above have worked on a lot of the errors already. Is there any errors left that I can work on? Or any places in the repository likely to have custom errors?

[Wauplin]

Hi @010kim, thanks for proposing your help! All errors have not yet been transferred to errors.py no. A good contribution would be to move the errors from ./utils/_errors.py to it. Would you like to open a PR for it? Note that all the logic for def hf_raise_for_status would have to stay in the current module and not be moved with the other errors. Let me know if you have any question!

[Wauplin]

I think we're now done with this issue :) Thanks everyone involved in solving it! It has been a nice community effort in #2122, #2170, #2202, #2444, #2470 and finally #2474 🤗