on_chain_error() — langchain Function Reference

Architecture documentation for the on_chain_error() function in manager.py from the langchain codebase.

Function python Observability CallbackManager calls 1

Entity Profile

Observability→ CallbackManager→ on_chain_error() — langchain Function Reference

Dependency Diagram

graph TD
  b0b15fe0_203f_b918_96d1_c0450665429c["on_chain_error()"]
  c39f1e6c_ff8b_15f7_1623_83b1b6b328ac["AsyncCallbackManagerForChainGroup"]
  b0b15fe0_203f_b918_96d1_c0450665429c -->|defined in| c39f1e6c_ff8b_15f7_1623_83b1b6b328ac
  ddaf4521_92bb_e16f_7a60_d3b79151a068["on_chain_error()"]
  b0b15fe0_203f_b918_96d1_c0450665429c -->|calls| ddaf4521_92bb_e16f_7a60_d3b79151a068
  style b0b15fe0_203f_b918_96d1_c0450665429c fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/callbacks/manager.py lines 2281–2293

    async def on_chain_error(
        self,
        error: BaseException,
        **kwargs: Any,
    ) -> None:
        """Run when chain errors.

        Args:
            error: The error.
            **kwargs: Additional keyword arguments.
        """
        self.ended = True
        await self.parent_run_manager.on_chain_error(error, **kwargs)