67 lines
2.3 KiB
Python
67 lines
2.3 KiB
Python
# coding=utf-8
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# Copyright 2023-present, the HuggingFace Inc. team.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Contains utilities to flag a feature as "experimental" in Huggingface Hub."""
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import warnings
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from functools import wraps
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from typing import Callable
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from .. import constants
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def experimental(fn: Callable) -> Callable:
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"""Decorator to flag a feature as experimental.
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An experimental feature trigger a warning when used as it might be subject to breaking changes in the future.
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Warnings can be disabled by setting the environment variable `HF_EXPERIMENTAL_WARNING` to `0`.
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Args:
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fn (`Callable`):
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The function to flag as experimental.
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Returns:
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`Callable`: The decorated function.
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Example:
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```python
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>>> from huggingface_hub.utils import experimental
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>>> @experimental
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... def my_function():
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... print("Hello world!")
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>>> my_function()
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UserWarning: 'my_function' is experimental and might be subject to breaking changes in the future. You can disable
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this warning by setting `HF_HUB_DISABLE_EXPERIMENTAL_WARNING=1` as environment variable.
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Hello world!
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```
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"""
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# For classes, put the "experimental" around the "__new__" method => __new__ will be removed in warning message
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name = fn.__qualname__[: -len(".__new__")] if fn.__qualname__.endswith(".__new__") else fn.__qualname__
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@wraps(fn)
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def _inner_fn(*args, **kwargs):
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if not constants.HF_HUB_DISABLE_EXPERIMENTAL_WARNING:
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warnings.warn(
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f"'{name}' is experimental and might be subject to breaking changes in the future."
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" You can disable this warning by setting `HF_HUB_DISABLE_EXPERIMENTAL_WARNING=1` as environment"
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" variable.",
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UserWarning,
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)
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return fn(*args, **kwargs)
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return _inner_fn
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