class Localbus: def sayLocal(self, busName=None): if busName is not None: print(‘Hello ‘ + busName) else: print(‘Hello ‘) obj = Localbus() obj.sayLocal() obj.sayLocal(‘Alif’) Output ============= Hello Hello Alif class Human: def sayHello(self, name=None, age=None): if name is not None and age is None: print(‘Hello ‘ + name) elif age is not None and age is not […]