type_util.py 文件源码

def annotations(memb):
    """Decorator applicable to functions, methods, properties,
    classes or modules (by explicit call).
    If applied on a module, memb must be a module or a module name contained in sys.modules.
    See pytypes.set_global_annotations_decorator to apply this on all modules.
    Methods with type comment will have type hints parsed from that
    string and get them attached as __annotations__ attribute.
    Methods with either a type comment or ordinary type annotations in
    a stubfile will get that information attached as __annotations__
    attribute (also a relevant use case in Python 3).
    Behavior in case of collision with previously (manually)
    attached __annotations__ can be controlled using the flags
    pytypes.annotations_override_typestring and pytypes.annotations_from_typestring.
    """
    if _check_as_func(memb):
        return annotations_func(memb)
    if isclass(memb):
        return annotations_class(memb)
    if ismodule(memb):
        return annotations_module(memb)
    if memb in sys.modules or memb in pytypes.typechecker._pending_modules:
        return annotations_module(memb)
    return memb