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
  6ca38ecd_e01a_2d51_9dc4_4c108747569c["on_chain_error()"]
  b12567d8_81a9_52c3_3096_d524d1371c83["CallbackManagerForChainGroup"]
  6ca38ecd_e01a_2d51_9dc4_4c108747569c -->|defined in| b12567d8_81a9_52c3_3096_d524d1371c83
  07a4c44a_3cfb_9b0a_ffde_c1bbfeb4080a["on_chain_error()"]
  6ca38ecd_e01a_2d51_9dc4_4c108747569c -->|calls| 07a4c44a_3cfb_9b0a_ffde_c1bbfeb4080a
  style 6ca38ecd_e01a_2d51_9dc4_4c108747569c fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/callbacks/manager.py lines 1761–1774

    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
        return self.parent_run_manager.on_chain_error(error, **kwargs)