metaclassesinPython

def decorator(func):
    def result(*args, **kwargs):
        print ('log function!', func)
        return func(*args, **kwargs)
    return result

def regenerate(d):
    new_d = {}
    for i, j in d.items():
        if hasattr(j, '__call__'):
            new_d[i] = decorator(j)
        else:
            new_d[i] = j
    return new_d

class MetaMarmon(type):
    def __new__(self, name, bases, namespace):
        instance = super(MetaMarmon, self).__new__(
            self, name, bases, regenerate(namespace))

        instance.hel = 'Rasim'
        return instance

class Marmon(metaclass=MetaMarmon):
    def marmon(self):
        print ('kefal')

import pdb; pdb.set_trace()

print (type(Marmon))
print (type(Marmon()))
print (type(MetaMarmon))