Pop Quiz #8.1 (Class & OOP)

• In Python, there is a flexibility that class/static/instance variables/methods can be added as "needed" outside the class definition.
• However, it may cause confusions. In this and next quizzes, we are going to exercise this flexibility and clarify the confusions it may raise.
• It is recommended, at least for the programming beginners, to declare all the class (static) and instance variables in the class definition.
  •   Methods may be added as "needed" if they will cause less confusion.

class A:
    # declare all the class variables here.
    def __init__(self):
         # declare all the instance variables here
    # class/static/instance method may be added later outside the class definition.