self reporting class wrapper

doc_this.py

import inspect


def dec(f, *args, **kwargs):
    def inner(*args, **kwargs):
        # TODO: default params from Parameter
        # https://docs.python.org/3/library/inspect.html#inspect.Parameter
        print(f'{args[0].__class__.__name__}.{f.__name__}(', end='')
        if len(args) > 1:
            params = list(inspect.signature(f).parameters.keys())[1:]
            for p, a in zip(params[:-1], args[1:-1]):
                print(f'{p}={a}', end=', ')
            print(f'{params[-1]}={args[-1]}', end='')
        print(')')
        f(*args, **kwargs)

    return inner


def class_dec(cls):

    for key, attr in cls.__dict__.items():
        if not key.startswith('_'):
            setattr(cls, key, dec(attr))

    return cls


@class_dec
class Boo:
    def m(self, x=1):
        print('inside method')
        pass

b = Boo()
b.m()