parse() — langchain Function Reference

Architecture documentation for the parse() function in datetime.py from the langchain codebase.

Function python OutputParsing StreamingParsers calls 1 called by 1

Entity Profile

OutputParsing→ StreamingParsers→ parse() — langchain Function Reference

Dependency Diagram

graph TD
  bf9083d6_e023_29c3_8123_53243aee021c["parse()"]
  2f806e11_8650_3820_0781_ec967e39cb53["DatetimeOutputParser"]
  bf9083d6_e023_29c3_8123_53243aee021c -->|defined in| 2f806e11_8650_3820_0781_ec967e39cb53
  bf9083d6_e023_29c3_8123_53243aee021c["parse()"]
  bf9083d6_e023_29c3_8123_53243aee021c -->|calls| bf9083d6_e023_29c3_8123_53243aee021c
  bf9083d6_e023_29c3_8123_53243aee021c["parse()"]
  bf9083d6_e023_29c3_8123_53243aee021c -->|calls| bf9083d6_e023_29c3_8123_53243aee021c
  style bf9083d6_e023_29c3_8123_53243aee021c fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/langchain_classic/output_parsers/datetime.py lines 48–54

    def parse(self, response: str) -> datetime:
        """Parse a string into a datetime object."""
        try:
            return datetime.strptime(response.strip(), self.format)  # noqa: DTZ007
        except ValueError as e:
            msg = f"Could not parse datetime string: {response}"
            raise OutputParserException(msg) from e