enter() — langchain Function Reference

Architecture documentation for the __enter__() function in file.py from the langchain codebase.

Function python Observability TelemetryUtilities

Entity Profile

Observability→ TelemetryUtilities→ __enter__() — langchain Function Reference

Dependency Diagram

graph TD
  5355e9e2_55b4_17cb_fa3e_a4bcf08a62a3["__enter__()"]
  52737fd4_dd58_4289_8b70_0131f09b23a5["FileCallbackHandler"]
  5355e9e2_55b4_17cb_fa3e_a4bcf08a62a3 -->|defined in| 52737fd4_dd58_4289_8b70_0131f09b23a5
  style 5355e9e2_55b4_17cb_fa3e_a4bcf08a62a3 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/callbacks/file.py lines 81–94

    def __enter__(self) -> Self:
        """Enter the context manager.

        Returns:
            The `FileCallbackHandler` instance.

        !!! note

            The file is already opened in `__init__`, so this just marks that the
            handler is being used as a context manager.

        """
        self._file_opened_in_context = True
        return self