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NoLock Class — langchain Architecture

Architecture documentation for the NoLock class in iter.py from the langchain codebase.

Class python

Entity Profile

Dependency Diagram

graph TD
  d3548835_c64a_19a6_345d_6307e4d86952["NoLock"]
  b289db43_7cd8_e404_08a4_ad932b851c13["iter.py"]
  d3548835_c64a_19a6_345d_6307e4d86952 -->|defined in| b289db43_7cd8_e404_08a4_ad932b851c13
  61973728_a88f_702f_0ffc_e222d50d3afd["__enter__()"]
  d3548835_c64a_19a6_345d_6307e4d86952 -->|method| 61973728_a88f_702f_0ffc_e222d50d3afd
  3f527b70_957c_918a_db54_0064105f6289["__exit__()"]
  d3548835_c64a_19a6_345d_6307e4d86952 -->|method| 3f527b70_957c_918a_db54_0064105f6289

Relationship Graph

Source Code

libs/core/langchain_core/utils/iter.py lines 19–32

class NoLock:
    """Dummy lock that provides the proper interface but no protection."""

    def __enter__(self) -> None:
        """Do nothing."""

    def __exit__(
        self,
        exc_type: type[BaseException] | None,
        exc_val: BaseException | None,
        exc_tb: TracebackType | None,
    ) -> Literal[False]:
        """Return False (exception not suppressed)."""
        return False

Defined In

Source

Frequently Asked Questions

What is the NoLock class?
NoLock is a class in the langchain codebase, defined in libs/core/langchain_core/utils/iter.py.
Where is NoLock defined?
NoLock is defined in libs/core/langchain_core/utils/iter.py at line 19.

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