# SPDX-License-Identifier: MIT class FrozenError(AttributeError): """ A frozen/immutable instance or attribute have been attempted to be modified. It mirrors the behavior of ``namedtuples`` by using the same error message and subclassing `AttributeError`. .. versionadded:: 20.1.0 """ msg = "can't set attribute" args = [msg] class FrozenInstanceError(FrozenError): """ A frozen instance has been attempted to be modified. .. versionadded:: 16.1.0 """ class FrozenAttributeError(FrozenError): """ A frozen attribute has been attempted to be modified. .. versionadded:: 20.1.0 """ class AttrsAttributeNotFoundError(ValueError): """ An *attrs* function couldn't find an attribute that the user asked for. .. versionadded:: 16.2.0 """ class NotAnAttrsClassError(ValueError): """ A non-*attrs* class has been passed into an *attrs* function. .. versionadded:: 16.2.0 """ class DefaultAlreadySetError(RuntimeError): """ A default has been set when defining the field and is attempted to be reset using the decorator. .. versionadded:: 17.1.0 """ class UnannotatedAttributeError(RuntimeError): """ A class with ``auto_attribs=True`` has a field without a type annotation. .. versionadded:: 17.3.0 """ class PythonTooOldError(RuntimeError): """ It was attempted to use an *attrs* feature that requires a newer Python version. .. versionadded:: 18.2.0 """ class NotCallableError(TypeError): """ A field requiring a callable has been set with a value that is not callable. .. versionadded:: 19.2.0 """ def __init__(self, msg, value): super(TypeError, self).__init__(msg, value) self.msg = msg self.value = value def __str__(self): return str(self.msg)