Exercise 44a - inheritance

 

class Parent(object):

        def implicity(self):
            print("PARENT implicity()")
            
class Child(Parent):
    pass
    
dad = Parent()
son = Child()

dad.implicity()
son.implicity()

output

PARENT implicity
PARENT implicity

 

class Parent(object):

    def override(self):
        print("PARENT override()")
        
class Child(Parent):

    def override(self):
        print("CHILD override()")
        
dad = Parent()
son = Child()

dad.override()
son.override()

output

PARENT override()
CHILD override()

class Parent(object):

    def altered(self):
        print("PARENT altered()")
        
class Child(Parent):

    def altered(self):
        print("CHILD, BEFORE PARENT altered()")
        super(Child, self).altered()
        print("CHILD, AFTER PARENT altered()")
        
dad = Parent()
son = Child()

dad.altered()
son.altered()

output

PARENT altered()
CHILD, BEFORE PARENT altered()
PARENT altered()
CHILD, AFTER PARENT altered()

 

class Parent(object):
    def override(self):
        print("PARENT override()")


    def implicity(self):
        print("PARENT implicity()")
    
    
    def altered(self):
        print("PARENT altered()")


class Child(Parent):
    def override(self):
        print("CHILD override()")


    def altered(self):
        print("CHILD, BEFORE PARENT altered()")
        super(Child, self).altered()
        print("CHILD, AFTER PARENT altered()")


dad = Parent()
son = Child()

dad.implicity()
son.implicity()

dad.override()
son.override()

dad.altered()
son.altered()

output

PARENT implicity()
PARENT implicity()
PARENT override()
CHILD override()
PARENT altered()
CHILD, BEFORE PARENT altered()
PARENT altered()
CHILD, AFTER PARENT altered()

 

2019-10-03

01:36:45