__init__.py 文件源码

def __Generic__new__(cls, *args, **kwds):
        # this is based on Generic.__new__ from typing-3.5.2.2
        if cls.__origin__ is None:
            obj = cls.__next_in_mro__.__new__(cls)
            obj.__orig_class__ = cls
        else:
            origin = typing._gorg(cls)
            obj = cls.__next_in_mro__.__new__(origin)
            obj.__orig_class__ = cls
            obj.__init__(*args, **kwds)
        return obj