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on_chain_error() — langchain Function Reference

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

Function python LangChainCore Runnables called by 1

Entity Profile

Dependency Diagram

graph TD
  a8ab75c8_fdad_c841_f54a_7ddeb43df40d["on_chain_error()"]
  9fa237df_c083_de03_6138_a1fcf10006ea["MyHandler"]
  a8ab75c8_fdad_c841_f54a_7ddeb43df40d -->|defined in| 9fa237df_c083_de03_6138_a1fcf10006ea
  a9077a2a_464d_d853_4eb9_ae6048e61e55["test_closing_iterator_doesnt_raise_error()"]
  a9077a2a_464d_d853_4eb9_ae6048e61e55 -->|calls| a8ab75c8_fdad_c841_f54a_7ddeb43df40d
  style a8ab75c8_fdad_c841_f54a_7ddeb43df40d fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/runnables/test_runnable.py lines 5640–5651

        def on_chain_error(
            self,
            error: BaseException,
            *,
            run_id: UUID,
            parent_run_id: UUID | None = None,
            tags: list[str] | None = None,
            **kwargs: Any,
        ) -> None:
            """Run when chain errors."""
            nonlocal on_chain_error_triggered
            on_chain_error_triggered = True

Domain

Subdomains

Defined In

Called By

Source

Frequently Asked Questions

What does on_chain_error() do?
on_chain_error() is a function in the langchain codebase, defined in libs/core/tests/unit_tests/runnables/test_runnable.py.
Where is on_chain_error() defined?
on_chain_error() is defined in libs/core/tests/unit_tests/runnables/test_runnable.py at line 5640.
What calls on_chain_error()?
on_chain_error() is called by 1 function(s): test_closing_iterator_doesnt_raise_error.

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