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from typing import Any
from enum import EnumMeta, Enum
class CaseInsensitiveEnumMeta(EnumMeta):
"""Enum metaclass to allow for interoperability with case-insensitive strings.
Consuming this metaclass in an SDK should be done in the following manner:
.. code-block:: python
from enum import Enum
from azure.core import CaseInsensitiveEnumMeta
class MyCustomEnum(str, Enum, metaclass=CaseInsensitiveEnumMeta):
FOO = 'foo'
BAR = 'bar'
"""
def __getitem__(cls, name: str) -> Any:
# disabling pylint bc of pylint bug https://github.com/PyCQA/astroid/issues/713
return super(CaseInsensitiveEnumMeta, cls).__getitem__(name.upper()) # pylint: disable=no-value-for-parameter
def __getattr__(cls, name: str) -> Enum:
"""Return the enum member matching `name`.
We use __getattr__ instead of descriptors or inserting into the enum
class' __dict__ in order to support `name` and `value` being both
properties for enum members (which live in the class' __dict__) and
enum members themselves.
:param str name: The name of the enum member to retrieve.
:rtype: ~azure.core.CaseInsensitiveEnumMeta
:return: The enum member matching `name`.
:raises AttributeError: If `name` is not a valid enum member.
"""
try:
return cls._member_map_[name.upper()]
except KeyError as err:
raise AttributeError(name) from err