`_name_or_path` no longer stored by `transformers`

[mvr]

Hi,

I can't use from_pretrained to load a model that I've saved locally using save_pretrained, I think because this change:

huggingface/transformers@1c4b62b#diff-cdf9f9a04db31e893d5004d79f1a1005bbcd0d43716a7635b92b2b7ddfc2965fR873

has broken SetFit here:

setfit/src/setfit/model_card.py

Line 434 in b961717

st_id = config_dict.get("_name_or_path")

Downgrading transformers to 4.49 works for now.

[cmhac]

Just ran into the same issue. I got this error message when calling from_pretrained with transformers 4.50.0:

TypeError                                 Traceback (most recent call last)
Cell In[14], line 5
      2 if not model_path.exists():
      3     raise FileNotFoundError(f"Model not found at {model_path}")
----> 5 model = SetFitModel.from_pretrained(model_path, multi_target_strategy="one-vs-rest")

File ~/Github/cbs-news-data/ig-violence/.venv/lib/python3.13/site-packages/huggingface_hub/utils/_validators.py:114, in validate_hf_hub_args.<locals>._inner_fn(*args, **kwargs)
    111 if check_use_auth_token:
    112     kwargs = smoothly_deprecate_use_auth_token(fn_name=fn.__name__, has_token=has_token, kwargs=kwargs)
--> 114 return fn(*args, **kwargs)

File ~/Github/cbs-news-data/ig-violence/.venv/lib/python3.13/site-packages/huggingface_hub/hub_mixin.py:553, in ModelHubMixin.from_pretrained(cls, pretrained_model_name_or_path, force_download, resume_download, proxies, token, cache_dir, local_files_only, revision, **model_kwargs)
    550     if cls._hub_mixin_inject_config and "config" not in model_kwargs:
    551         model_kwargs["config"] = config
--> 553 instance = cls._from_pretrained(
    554     model_id=str(model_id),
    555     revision=revision,
    556     cache_dir=cache_dir,
    557     force_download=force_download,
    558     proxies=proxies,
    559     resume_download=resume_download,
    560     local_files_only=local_files_only,
    561     token=token,
    562     **model_kwargs,
    563 )
    565 # Implicitly set the config as instance attribute if not already set by the class
    566 # This way `config` will be available when calling `save_pretrained` or `push_to_hub`.
    567 if config is not None and (getattr(instance, "_hub_mixin_config", None) in (None, {})):

File ~/Github/cbs-news-data/ig-violence/.venv/lib/python3.13/site-packages/huggingface_hub/utils/_validators.py:114, in validate_hf_hub_args.<locals>._inner_fn(*args, **kwargs)
    111 if check_use_auth_token:
    112     kwargs = smoothly_deprecate_use_auth_token(fn_name=fn.__name__, has_token=has_token, kwargs=kwargs)
--> 114 return fn(*args, **kwargs)

File ~/Github/cbs-news-data/ig-violence/.venv/lib/python3.13/site-packages/setfit/modeling.py:830, in SetFitModel._from_pretrained(cls, model_id, revision, cache_dir, force_download, proxies, resume_download, local_files_only, token, multi_target_strategy, use_differentiable_head, device, trust_remote_code, **model_kwargs)
    828     if isinstance(model_head, torch.nn.Module):
    829         model_head.to(device)
--> 830     model_card_data.infer_st_id(model_id)
    831 else:
    832     head_params = model_kwargs.pop("head_params", {})

File ~/Github/cbs-news-data/ig-violence/.venv/lib/python3.13/site-packages/setfit/model_card.py:435, in SetFitModelCardData.infer_st_id(self, setfit_model_id)
    433 config_dict, _ = PretrainedConfig.get_config_dict(setfit_model_id)
    434 st_id = config_dict.get("_name_or_path")
--> 435 st_id_path = Path(st_id)
    436 # Sometimes the name_or_path ends exactly with the model_id, e.g.
    437 # "C:\\Users\\tom/.cache\\torch\\sentence_transformers\\BAAI_bge-small-en-v1.5\\"
    438 candidate_model_ids = ["/".join(st_id_path.parts[-2:])]

File /opt/homebrew/Cellar/python@3.13/3.13.2/Frameworks/Python.framework/Versions/3.13/lib/python3.13/pathlib/_local.py:503, in Path.__init__(self, *args, **kwargs)
    500     msg = ("support for supplying keyword arguments to pathlib.PurePath "
    501            "is deprecated and scheduled for removal in Python {remove}")
    502     warnings._deprecated("pathlib.PurePath(**kwargs)", msg, remove=(3, 14))
--> 503 super().__init__(*args)

File /opt/homebrew/Cellar/python@3.13/3.13.2/Frameworks/Python.framework/Versions/3.13/lib/python3.13/pathlib/_local.py:132, in PurePath.__init__(self, *args)
    130             path = arg
    131         if not isinstance(path, str):
--> 132             raise TypeError(
    133                 "argument should be a str or an os.PathLike "
    134                 "object where __fspath__ returns a str, "
    135                 f"not {type(path).__name__!r}")
    136         paths.append(path)
    137 # Avoid calling super().__init__, as an optimisation

TypeError: argument should be a str or an os.PathLike object where __fspath__ returns a str, not 'NoneType'

Like @mvr, downgrading to transformers 4.49 fixed the issue.

[tomaarsen]

Hello!

Thank you for reporting, I appreciate it.
I've resolved it with #594.

• Tom Aarsen