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How to use is_decorated_classmethod method in pandera

Best Python code snippet using pandera_python

test_inspection_utils.py

Source:test_inspection_utils.py

...50    def static_method_child():51        return 3525354def test_is_decorated_classmethod() -> None:55    some_instance = SomeClass()56    some_child = SomeChild()5758    cls_methods_with_deco = {59        SomeMeta.class_method_meta,60        SomeClass.class_method_meta,61        SomeClass.class_method,62        SomeChild.class_method_meta,63        SomeChild.class_method,64        SomeChild.class_method_child,65    }6667    cls_methods_from_meta = {68        SomeClass.regular_method_meta,69        SomeChild.regular_method_meta,70    }7172    all_methods = {73        # from meta74        SomeMeta.class_method_meta,75        SomeMeta.static_method_meta,76        # from parent77        SomeClass.class_method_meta,78        SomeClass.regular_method_meta,79        SomeClass.static_method_meta,80        SomeClass.class_method,81        some_instance.regular_method,82        SomeClass.static_method,83        # from child84        SomeChild.class_method_meta,85        SomeChild.regular_method_meta,86        SomeChild.static_method_meta,87        SomeChild.class_method,88        some_child.regular_method,89        SomeChild.static_method,90        SomeChild.class_method_child,91        some_child.regular_method_child,92        SomeChild.static_method_child,93    }9495    for method in cls_methods_with_deco:96        assert is_decorated_classmethod(method), f"{method} is decorated"97    for method in all_methods - cls_methods_with_deco:98        assert not is_decorated_classmethod(99            method100        ), f"{method} is not decorated"101    for method in cls_methods_from_meta:102        assert is_classmethod_from_meta(method), f"{method} comes from meta"103    for method in all_methods - cls_methods_from_meta:104        assert not is_classmethod_from_meta(105            method
...

inspection_utils.py

Source:inspection_utils.py

...12    is_method = ismethod(fn)13    return is_method and isinstance(fn.__self__, type)  # type: ignore[attr-defined]141516def is_decorated_classmethod(fn: Callable) -> bool:17    """Check if fn is a classmethod declared with the @classmethod decorator.1819    Adapted from:20    https://stackoverflow.com/questions/19227724/check-if-a-function-uses-classmethod21    """22    if not _is_like_classmethod(fn):23        return False24    bound_to = fn.__self__  # type: ignore[attr-defined]25    assert isinstance(bound_to, type)26    name = fn.__name__27    for cls in bound_to.__mro__:28        descriptor = vars(cls).get(name)29        if descriptor is not None:30            return isinstance(descriptor, classmethod)31    return False323334def is_classmethod_from_meta(fn: Callable) -> bool:35    """Check if fn is a regular method defined on a metaclass36    (which behaves like an @classmethod method defined on a regular class)."""
...

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