_get_default_allowed_class_paths() — langchain Function Reference

Architecture documentation for the _get_default_allowed_class_paths() function in load.py from the langchain codebase.

Function python CoreAbstractions Serialization called by 1

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CoreAbstractions→ Serialization→ _get_default_allowed_class_paths() — langchain Function Reference

Dependency Diagram

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  5f6f100d_cc37_3378_9551_a884d0722393["_get_default_allowed_class_paths()"]
  05e0e20a_4425_e962_37a4_c6c6f08a700d["load.py"]
  5f6f100d_cc37_3378_9551_a884d0722393 -->|defined in| 05e0e20a_4425_e962_37a4_c6c6f08a700d
  b3f6aa7f_cc79_a63c_c7f8_32c14bbf6343["__init__()"]
  b3f6aa7f_cc79_a63c_c7f8_32c14bbf6343 -->|calls| 5f6f100d_cc37_3378_9551_a884d0722393
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Relationship Graph

Source Code

libs/core/langchain_core/load/load.py lines 124–149

def _get_default_allowed_class_paths(
    allowed_object_mode: Literal["all", "core"],
) -> set[tuple[str, ...]]:
    """Get the default allowed class paths from the serialization mappings.

    This uses the mappings as the source of truth for what classes are allowed
    by default. Both the legacy paths (keys) and current paths (values) are included.

    Args:
        allowed_object_mode: either `'all'` or `'core'`.

    Returns:
        Set of class path tuples that are allowed by default.
    """
    if allowed_object_mode in _default_class_paths_cache:
        return _default_class_paths_cache[allowed_object_mode]

    allowed_paths: set[tuple[str, ...]] = set()
    for key, value in ALL_SERIALIZABLE_MAPPINGS.items():
        if allowed_object_mode == "core" and value[0] != "langchain_core":
            continue
        allowed_paths.add(key)
        allowed_paths.add(value)

    _default_class_paths_cache[allowed_object_mode] = allowed_paths
    return _default_class_paths_cache[allowed_object_mode]