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"""Defines routines for custom error handling in RAT."""

import pydantic_core

def custom_pydantic_validation_error(

error_list: list[pydantic_core.ErrorDetails],

custom_error_msgs: dict[str, str] | None = None,

) -> list[pydantic_core.ErrorDetails]:

"""Give Pydantic errors a better custom message with extraneous information removed.

We substitute the standard error for a PydanticCustomError for a given set of error types.

For errors that do not have a custom error message defined,

we redefine them using a PydanticCustomError to remove the url from the error message.

Parameters

----------

error_list : list[pydantic_core.ErrorDetails]

A list of errors produced by pydantic.ValidationError.errors().

custom_error_msgs: dict[str, str], optional

A dict of custom error messages for given error types.

Returns

-------

new_error : list[pydantic_core.ErrorDetails]

A list of errors including PydanticCustomErrors in place of the error types in custom_errors.

"""

if custom_error_msgs is None:

custom_error_msgs = {}

custom_error_list = []

for error in error_list:

if error["type"] in custom_error_msgs:

custom_error = pydantic_core.PydanticCustomError(error["type"], custom_error_msgs[error["type"]])

else:

custom_error = pydantic_core.PydanticCustomError(error["type"], error["msg"])

error["type"] = custom_error

custom_error_list.append(error)

return custom_error_list

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