python带有参数的装饰器

Question

def type_inspect(*ty_args, **ty_kwargs):
    def decorator(func):
        func_sig = inspect.Signature(func)
        ba = func_sig.bind_partial(*ty_args, **ty_kwargs)
        type_dict = ba.arguments

        def wrap(*args, **kwargs):
            for name, obj in func_sig.bind(*args, **kwargs).arguments.items():
                type_ = type_dict.get(name)
                if not isinstance(obj, type_):
                    raise TypeError('%s must be %s' % (name, type_))
            return func(*args, **kwargs)

        return wrap

    return decorator


if __name__ == '__main__':
    @type_inspect(int, list, str)
    def f(a, b, c):
        pass

我写了一个type_inspect函数，功能就是生产装饰器，并且给装饰器修饰的函数检查数据类型

运行了一下报错：

怎么修改呢？谢谢

Answer 1

func_sig = inspect.Signature(func)

Signature改为signature