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편집 파일: converters.cpython-311.pyc
� �܋f � �R � d Z ddlZddlmZ ddlmZmZmZ g d�Zd� Z edfd�Z d � Z dS ) z Commonly useful converters. � N� )�_AnnotationExtractor)�NOTHING�Factory�pipe)�default_if_none�optionalr �to_boolc �� � � � fd�}t � � � }|� � � }|rt j | |j d< |� � � }|rt j | |j d< |S )aO A converter that allows an attribute to be optional. An optional attribute is one which can be set to ``None``. Type annotations will be inferred from the wrapped converter's, if it has any. :param callable converter: the converter that is used for non-``None`` values. .. versionadded:: 17.1.0 c �" �� | �d S �| � � S �N� )�val� converters ��F/opt/cloudlinux/venv/lib64/python3.11/site-packages/attr/converters.py�optional_converterz$optional.<locals>.optional_converter$ s �� � �;��4��y��~�~� � r �return)r �get_first_param_type�typing�Optional�__annotations__�get_return_type)r r �xtr�t�rts ` r r r s� �� � � � � � � �y� )� )�C� � � �"�"�A�� G�4:�O�A�4F��*�5�1� � � � � �B� � K�7=��r�7J��*�8�4� � r c � � � � t u r|�t d� � �� t ur|�t d� � �|�t |� � � t � t � � r � j rt d� � �� fd�}n� fd�}|S )a� A converter that allows to replace ``None`` values by *default* or the result of *factory*. :param default: Value to be used if ``None`` is passed. Passing an instance of `attrs.Factory` is supported, however the ``takes_self`` option is *not*. :param callable factory: A callable that takes no parameters whose result is used if ``None`` is passed. :raises TypeError: If **neither** *default* or *factory* is passed. :raises TypeError: If **both** *default* and *factory* are passed. :raises ValueError: If an instance of `attrs.Factory` is passed with ``takes_self=True``. .. versionadded:: 18.2.0 Nz(Must pass either `default` or `factory`.z5Must pass either `default` or `factory` but not both.z1`takes_self` is not supported by default_if_none.c �4 �� | �| S �� � � S r )�factory�r �defaults �r �default_if_none_converterz2default_if_none.<locals>.default_if_none_converterY s �� ���� ��?�?�$�$� $r c � �� | �| S �S r r r s �r r" z2default_if_none.<locals>.default_if_none_convertera s �� ���� ��Nr )r � TypeErrorr � isinstance� takes_self� ValueError)r! r r" s ` r r r 6 s� �� �$ �'���g�o��B�C�C�C��g� � �'�"5�� C� � � � ���'�"�"���'�7�#�#� � � � � �C�� � � %� %� %� %� %� %� � � � � � %�$r c �� � t | t � � r| � � � } h d�}h d�} | |v rdS | |v rdS n# t $ r Y nw xY wt d| � �� � �)a Convert "boolean" strings (e.g., from env. vars.) to real booleans. Values mapping to :code:`True`: - :code:`True` - :code:`"true"` / :code:`"t"` - :code:`"yes"` / :code:`"y"` - :code:`"on"` - :code:`"1"` - :code:`1` Values mapping to :code:`False`: - :code:`False` - :code:`"false"` / :code:`"f"` - :code:`"no"` / :code:`"n"` - :code:`"off"` - :code:`"0"` - :code:`0` :raises ValueError: for any other value. .. versionadded:: 21.3.0 > T�1r �y�on�yes�true> F�0�f�n�no�off�falseTFz Cannot convert value to bool: )r% �str�lowerr$ r' )r �truthy�falsys r r r j s� � �4 �#�s��� ��i�i�k�k�� :� :� :�F� ;� ;� ;�E� � �&�=�=��4� �%�<�<��5� �� � � � � �� ���� �;�c�;�;� <� <�<s �A �A � A � A ) �__doc__r �_compatr �_maker r r �__all__r r r r r r �<module>r< s� ��� � � � � � )� )� )� )� )� )� )� )� )� )� )� )� )� )� )� )� � � �� � � �@ $�T� 1%� 1%� 1%� 1%�h&=� &=� &=� &=� &=r