wrapt

ex01.py

import wrapt

@wrapt.decorator
def pass_through(wrapped, instance, args, kwargs):
    print("pass_through", wrapped, instance, args, kwargs)
    return wrapped(*args, **kwargs)


@pass_through
def foo():
    print("foo")

print("========")
foo()    

ex01.result

========
pass_through <function foo at 0x104908e60> None () {}
foo

ex02.py

@wrapt.decorator
def pass_through(wrapped, instance, args, kwargs):
    print("pass_through", instance, args, kwargs)
    return wrapped(*args, **kwargs)


@pass_through
class Foo:
    def __init__(self, name):
        self.name = name

    @pass_through
    def hi(self):
        print(f"hi, {self.name}")

print("======")
f = Foo("foo")
f.hi()

ex02.result

======
pass_through None ('foo',) {}
pass_through <__main__.Foo object at 0x10051e310> () {}
hi, foo