class Common(object):

    def __init__(self, x):
        self.x = x

def sharedMethod(self):
    print(self.x)


class Alpha(Common):

    def __init__(self):
        Common.__init__(self, 'Alpha')


class Bravo(Common):

    def __init__(self):
        Common.__init__(self, 'Bravo')
Python using methods from other classes