learn_python/ex44.py at master · bugzPDX/learn_python · GitHub

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class Parent(object):

	def implicit(self):
		print "Parent implicit()"
		print "\n"

class Child(Parent):
	pass

dad = Parent()
son = Child()

dad.implicit()
son.implicit()


class Parent(object):

    def override(self):
        print "PARENT override()"

class Child(Parent):

    def override(self):
        print "CHILD override()"
        print "\n"

dad = Parent()
son = Child()

dad.override()
son.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()"
        print "\n"

dad = Parent()
son = Child()

dad.altered()
son.altered()


class Parent(object):

    def override(self):
        print "PARENT override()"

    def implicit(self):
        print "PARENT implicit()"

    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.implicit() # prints PARENT implicit()
son.implicit() # prints PARENT implicit()

dad.override() # prints PARENT override()
son.override() # prints CHILD override()

dad.altered() # prints PARENT altered()
son.altered() # prints CHILD, BEFORE PARENT altered() then PARENT altered() then CHILD AFTER PARENT altered()