BUG -- PydanticKnownError takes no keyword arguments
#10604
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it176131
changed the title
PydanticKnownError takes no keyword argumentsPydanticKnownError takes no keyword arguments
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Thanks for reporting this - odd, |
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The bug can be replicated for from pydantic_core import PydanticCustomError
def custom_validator(v) -> None:
if v <= 10:
raise PydanticCustomError(error_type='custom_value_error', message_template='Value must be greater than {value}', context={'value': 10, 'extra_context': 'extra_data'})
return v
custom_validator(10)The example in the documentation though only uses positional arguments. A quick investigation seems to suggest that no class that extends |
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Description
I'm hoping to incorporate some custom error handling using the :class:
PydanticKnownError. I tried to use the example from the docs, but this raises aTypeErrorrather than the expectedPydanticKnownError.A potentially quick solution would be to mark the arguments as positional-only with
/and updating the docs to reflect this, but this appears to be the opposite of mostpydanticclasses.Example Code
--------------------------------------------------------------------------- TypeError Traceback (most recent call last) Cell In[4], line 1 ----> 1 custom_validator(10) Cell In[3], line 5, in custom_validator(v) 3 def custom_validator(v) -> None: 4 if v <= 10: ----> 5 raise PydanticKnownError(error_type='greater_than', context={'gt': 10}) 6 return v TypeError: pydantic_core._pydantic_core.PydanticKnownError() takes no keyword argumentsPython, Pydantic & OS Version
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