PydanticAttrOutputFunctionsParser Class — langchain Architecture

Architecture documentation for the PydanticAttrOutputFunctionsParser class in openai_functions.py from the langchain codebase.

Class python OutputParsing

Entity Profile

OutputParsing→ PydanticAttrOutputFunctionsParser Class — langchain Architecture

Dependency Diagram

graph TD
  f96ab4c7_2e49_8c29_5927_3fe1f02bf27d["PydanticAttrOutputFunctionsParser"]
  9e82a47f_5a67_03df_5090_a9ef55b8c16d["PydanticOutputFunctionsParser"]
  f96ab4c7_2e49_8c29_5927_3fe1f02bf27d -->|extends| 9e82a47f_5a67_03df_5090_a9ef55b8c16d
  d083bb96_f642_0585_b68e_6b3fea430962["openai_functions.py"]
  f96ab4c7_2e49_8c29_5927_3fe1f02bf27d -->|defined in| d083bb96_f642_0585_b68e_6b3fea430962
  e0288db3_07f1_162c_ce71_c0279b8fbc3a["parse_result()"]
  f96ab4c7_2e49_8c29_5927_3fe1f02bf27d -->|method| e0288db3_07f1_162c_ce71_c0279b8fbc3a

Relationship Graph

Source Code

libs/core/langchain_core/output_parsers/openai_functions.py lines 295–313

class PydanticAttrOutputFunctionsParser(PydanticOutputFunctionsParser):
    """Parse an output as an attribute of a Pydantic object."""

    attr_name: str
    """The name of the attribute to return."""

    @override
    def parse_result(self, result: list[Generation], *, partial: bool = False) -> Any:
        """Parse the result of an LLM call to a JSON object.

        Args:
            result: The result of the LLM call.
            partial: Whether to parse partial JSON objects.

        Returns:
            The parsed JSON object.
        """
        result = super().parse_result(result)
        return getattr(result, self.attr_name)