Metaclass definition

import random


class MetaSample(type):
    def __new__(cls, name, bases, dct):
        print(f'BEHOLD, You will get an awesome new class soon!')
        x = super().__new__(cls, name, bases, dct)
        x.some_var = 100
        x.random_var = random.randint(0, 100)
        x.called_times = 0
        return x

    def __init__(self, *args, **kwargs):
        print(f'initing class')
        super().__init__(*args, **kwargs)

    def __call__(self, *args, **kwargs):
        self.called_times += 1
        print(f'class is called {self.called_times} times in total')
        return super().__call__(*args, **kwargs)


class NewClass(metaclass=MetaSample):
    pass


class ClassWOMeta:
    pass


class NewClass2(NewClass):
    pass


class NewClass3(NewClass2):
    pass


a = NewClass()
b = NewClass2()
c = NewClass3
d = NewClass()
e = ClassWOMeta()
print('-----------------')
c()

print('defined vars')
print(c.some_var)

print('called times')
print(a.called_times)
print(d.called_times)
try:
    print(e.called_times)
except AttributeError:
    print('Attribute was never there')

print('random vars')
print(a.random_var)
print(b.random_var)
print(c.random_var)