Cython decorator ordering bug workaround

cython_decorator_workaround.py

# noinspection PyPep8Naming
class SM(staticmethod):
    """
    Quick workaround that allows us to use Cython and multiple decorators.
    """

    def __init__(self, *args, **kwargs):
        super(staticmethod, self).__init__(*args, **kwargs)
        self.__inds_static_hack__ = args[0]

__static = globals()['__builtins__'].staticmethod = SM

# This has to be done for every decorator
def deco(_fun):
    fun = getattr(_fun, '__inds_static_hack__', _fun)
    def f(*args, **kwargs):
        return fun(*args, **kwargs)

    f.__name__ = fun.__name__ # etc...
    return f

class C:
    @staticmethod
    @deco
    def f():
        return 'f_return_value'

    @deco
    @staticmethod
    def g():
        return 'g_return_value'

print(f'both is fine : {C.f.__name__} returns {C.f()}, \n'
      f'               {C.g.__name__} returns {C.g()}. \n'
      f'This can also be used in a different file.')