test_deprecated_class_has_pep702_attribute() — langchain Function Reference

Architecture documentation for the test_deprecated_class_has_pep702_attribute() function in test_deprecation.py from the langchain codebase.

Function python CoreAbstractions Serialization

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CoreAbstractions→ Serialization→ test_deprecated_class_has_pep702_attribute() — langchain Function Reference

Dependency Diagram

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  2d515a8e_9de2_0734_3cac_823440955612["test_deprecated_class_has_pep702_attribute()"]
  07400ddb_6f57_2ca9_d2d9_e7c7fd98cfc1["test_deprecation.py"]
  2d515a8e_9de2_0734_3cac_823440955612 -->|defined in| 07400ddb_6f57_2ca9_d2d9_e7c7fd98cfc1
  style 2d515a8e_9de2_0734_3cac_823440955612 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/_api/test_deprecation.py lines 539–548

def test_deprecated_class_has_pep702_attribute() -> None:
    """Test that deprecated classes have `__deprecated__` attribute (PEP 702)."""

    @deprecated(since="2.0.0", removal="3.0.0", alternative="NewClass")
    class OldClass:
        def __init__(self) -> None:
            """Original doc."""

    assert hasattr(OldClass, "__deprecated__")
    assert OldClass.__deprecated__ == "Use NewClass instead."