_parser_exception() — langchain Function Reference

Architecture documentation for the _parser_exception() function in pydantic.py from the langchain codebase.

Function python OutputParsing StructuredValidation calls 1 called by 2

Entity Profile

OutputParsing→ StructuredValidation→ _parser_exception() — langchain Function Reference

Dependency Diagram

graph TD
  be3b196e_4a79_f447_3f29_9d15eee5575b["_parser_exception()"]
  570792b6_910c_5259_8419_5183ac1b1409["PydanticOutputParser"]
  be3b196e_4a79_f447_3f29_9d15eee5575b -->|defined in| 570792b6_910c_5259_8419_5183ac1b1409
  fd96632b_d191_0274_eb13_17083eb19c1d["_parse_obj()"]
  fd96632b_d191_0274_eb13_17083eb19c1d -->|calls| be3b196e_4a79_f447_3f29_9d15eee5575b
  be3b196e_4a79_f447_3f29_9d15eee5575b["_parser_exception()"]
  be3b196e_4a79_f447_3f29_9d15eee5575b -->|calls| be3b196e_4a79_f447_3f29_9d15eee5575b
  be3b196e_4a79_f447_3f29_9d15eee5575b["_parser_exception()"]
  be3b196e_4a79_f447_3f29_9d15eee5575b -->|calls| be3b196e_4a79_f447_3f29_9d15eee5575b
  style be3b196e_4a79_f447_3f29_9d15eee5575b fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/output_parsers/pydantic.py lines 37–43

    def _parser_exception(
        self, e: Exception, json_object: dict
    ) -> OutputParserException:
        json_string = json.dumps(json_object, ensure_ascii=False)
        name = self.pydantic_object.__name__
        msg = f"Failed to parse {name} from completion {json_string}. Got: {e}"
        return OutputParserException(msg, llm_output=json_string)