class Phone:
    '''
      Stellt ein einfaches, altes Telefon dar, mit dem man nur anrufen kann.
    '''
 
    def __init__(self):
        pass
 
    def calling(self):
        print('anrufen')
 
    def what_i_am(self):
        return('a simply phone')
 
#Test
if __name__ == '__main__':
    p = Phone()
    print(p.what_i_am())
    p.calling()

from phone import Phone
 
class Handy(Phone):
 
    def __init__(self):
        pass
 
    def handle_sms(self):
        print('sms senden und empfangen')
 
    def what_i_am(self):
        return('an old handy')
 
#Test
if __name__ == '__main__':
    h = Handy()
    print(h.what_i_am())
    h.calling()
    h.handle_sms()

rom handy import Handy
 
class SmartPhone(Handy):
 
    def __ini__(self):
        pass
 
    def use_internet(self):
        print('das Internet benutzen')
 
    def what_i_am(self):
        return ('a modern smartphone')
 
#Test
if __name__ == '__main__':
    s = SmartPhone()
    print(s.what_i_am())
    s.calling()
    s.handle_sms()
    s.use_internet()

© René Probst