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from __future__ import annotations as _annotations
import warnings
from typing import TYPE_CHECKING, Any
from typing_extensions import Literal, deprecated
from .._internal import _config
from ..warnings import PydanticDeprecatedSince20
if not TYPE_CHECKING:
# See PyCharm issues https://youtrack.jetbrains.com/issue/PY-21915
# and https://youtrack.jetbrains.com/issue/PY-51428
DeprecationWarning = PydanticDeprecatedSince20
__all__ = 'BaseConfig', 'Extra'
class _ConfigMetaclass(type):
def __getattr__(self, item: str) -> Any:
warnings.warn(_config.DEPRECATION_MESSAGE, DeprecationWarning)
try:
return _config.config_defaults[item]
except KeyError as exc:
raise AttributeError(f"type object '{self.__name__}' has no attribute {exc}") from exc
@deprecated('BaseConfig is deprecated. Use the `pydantic.ConfigDict` instead.', category=PydanticDeprecatedSince20)
class BaseConfig(metaclass=_ConfigMetaclass):
"""This class is only retained for backwards compatibility.
!!! Warning "Deprecated"
BaseConfig is deprecated. Use the [`pydantic.ConfigDict`][pydantic.ConfigDict] instead.
"""
def __getattr__(self, item: str) -> Any:
warnings.warn(_config.DEPRECATION_MESSAGE, DeprecationWarning)
try:
return super().__getattribute__(item)
except AttributeError as exc:
try:
return getattr(type(self), item)
except AttributeError:
# re-raising changes the displayed text to reflect that `self` is not a type
raise AttributeError(str(exc)) from exc
def __init_subclass__(cls, **kwargs: Any) -> None:
warnings.warn(_config.DEPRECATION_MESSAGE, DeprecationWarning)
return super().__init_subclass__(**kwargs)
class Extra:
allow: Literal['allow'] = 'allow'
ignore: Literal['ignore'] = 'ignore'
forbid: Literal['forbid'] = 'forbid'
def __getattribute__(self, __name: str) -> Any:
warnings.warn(
"`pydantic.config.Extra` is deprecated, use literal values instead (e.g. `extra='allow'`)",
DeprecationWarning,
stacklevel=2,
)
return super().__getattribute__(__name)
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