is_pydantic_v1_subclass() — langchain Function Reference

Architecture documentation for the is_pydantic_v1_subclass() function in pydantic.py from the langchain codebase.

Function python Observability TelemetryUtilities calls 1 called by 2

Entity Profile

Observability→ TelemetryUtilities→ is_pydantic_v1_subclass() — langchain Function Reference

Dependency Diagram

graph TD
  39c34b31_edc3_219c_9382_5f8d84fbba3f["is_pydantic_v1_subclass()"]
  892b1d9f_bb87_0364_19af_71382204e430["pydantic.py"]
  39c34b31_edc3_219c_9382_5f8d84fbba3f -->|defined in| 892b1d9f_bb87_0364_19af_71382204e430
  39c34b31_edc3_219c_9382_5f8d84fbba3f["is_pydantic_v1_subclass()"]
  39c34b31_edc3_219c_9382_5f8d84fbba3f -->|calls| 39c34b31_edc3_219c_9382_5f8d84fbba3f
  c9d61f7c_ac2d_72d8_8f85_2794ca40a867["get_pydantic_field_names()"]
  c9d61f7c_ac2d_72d8_8f85_2794ca40a867 -->|calls| 39c34b31_edc3_219c_9382_5f8d84fbba3f
  39c34b31_edc3_219c_9382_5f8d84fbba3f["is_pydantic_v1_subclass()"]
  39c34b31_edc3_219c_9382_5f8d84fbba3f -->|calls| 39c34b31_edc3_219c_9382_5f8d84fbba3f
  style 39c34b31_edc3_219c_9382_5f8d84fbba3f fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/utils/pydantic.py lines 78–84

def is_pydantic_v1_subclass(cls: type) -> bool:
    """Check if the given class is Pydantic v1-like.

    Returns:
        `True` if the given class is a subclass of Pydantic `BaseModel` 1.x.
    """
    return issubclass(cls, BaseModelV1)