self __privatecount + print(self __privatecountcounter counterclass(counter count(counter count(print(counter __privatecountoutput traceback (most recent call last)file ""line in attributeerror'counterclassobject has no attribute '__privatecount summary it allows us to develop applications using an object-oriented approach in pythonwe can easily create and use classes and objects an object-oriented paradigm is to design the program using classes and objects the oops concept focuses on writing the reusable code unit end exercise explain the object oriented concept in details explain the instance return values in details explain the data hiding and data encapsulation with examples write python code to create animal class and in it create one instance variable and access it through object explain multiple and multilevel inheritance with examples bibliography basics/instancesasrreturnvalues html :text=when% % call% an% instance,passed% in% by% the% user ****