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SuperFunction.py
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SuperFunction.py
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# What is Super function ?
'''
- The super function returns a temporary object of the superclass that allows to access all of its methods to its child
class.
- The super() builtin returns a proxy object (temporary object of the superclass) that allows us to access methods of
the base class.
- Need not remember or specify the parent class name to access its methods. This function can be used both in single
and multiple inheritances.
'''
# SYNTAX:
'''
super()
'''
# EXAMPLE: 1
'''
class A:
def m1(self):
print("in m1 from A")
class B(A):
def m1(self):
super().m1()
print("in m1 from B")
class C(B):
def m1(self):
super().m1()
print("in m1 from C")
class D(C):
def m1(self):
super().m1()
print("in m1 from D")
class E(D):
def m1(self):
super().m1()
print("in m1 from E")
obj = E()
obj.m1()
'''
# EXAMPLE: 2
'''
class Parent:
def __init__ (self, name, age):
self.name = name
self.age = age
def show(self):
print(self.name)
print(self.age)
obj = Parent('Nitin', 50)
obj.show()
'''
# EXAMPLE: 2.1
'''
class Parent:
def __init__ (self, name, age):
self.name = name
self.age = age
def show(self):
print(self.name)
print(self.age)
class Child(Parent):
def __init__ (self, name, age, city, pincode):
super().__init__(name, age) # PARENT CONSTRUCTOR
self.city = city
self.pincode = pincode
def show(self):
super(Child, self).show() # PARENT METHOD
print(self.city)
print(self.pincode)
obj = Child('Nitin', 50, 'Sangli', 416410)
obj.show()
'''
# EXAMPLE: 2.2
'''
class Parent:
def __init__ (self, name, age):
self.name = name
self.age = age
def show(self):
print(self.name)
print(self.age)
class Child(Parent):
def __init__ (self, name, age, city, pincode):
super().__init__(name, age) # PARENT CONSTRUCTOR
self.city = city
self.pincode = pincode
def show(self):
super(Child, self).show() # PARENT METHOD
print(self.city)
print(self.pincode)
class GrandChild(Child):
def __init__(self, name, age, city, pincode, height, weight):
super().__init__(name, age, city, pincode) # PARENT CONSTRUCTOR
self.height = height
self.weight = weight
def display(self):
super(GrandChild, self).show() # PARENT METHOD
print(self.height)
print(self.weight)
obj = GrandChild('Nitin', 50, 'Sangli', 416410, '5 Feet 10 Inches', 70)
obj.display()
'''
# EXAMPLE: 3
'''
class A:
name = 'Python' # CLASS VARIABLE
def m1(self): # CLASS METHOD
self.course = 'DS'
print("in m1")
class B(A):
name = "Java" # CLASS VARIABLE
def m1(self): # CLASS METHOD
print(self.name)
super().m1()
print(super().name) # PARENT VARIABLE
print(self.course)
obj = B()
obj.m1()
'''
# EXAMPLE: 4
'''
class A:
def m1(self):
self.a = 100
print("A-m1")
class B(A):
def m1(self):
self.a = 500
print("B-m1")
super().m1()
print(self.a)
obj = B()
obj.m1()
'''
# ○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○
# EXAMPLE:
'''
class Person:
def __init__(self, name):
print(name + " is a cricketer")
class Athlete(Person):
def __init__(self, name):
print(name + " is an athlete")
class FamousPerson(Person):
def __init__(self, name):
print(name + " is a famous person")
class Sachin(Athlete, FamousPerson):
def __init__(self):
Athlete.__init__(self, "Sachin") # Super constructor
FamousPerson.__init__(self, "Sachin") # Super constructor
Person.__init__(self, "Sachin") # Super constructor
obj = Sachin()
'''
# ○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○
# ACCESING/INHERIT ROOT CLASS PROPERTIES INTO VERY BASE CLASS
''' OR '''
# INHERIT GRAND PARENT CLASS PROPERTIES INTO CHILD CLASS
# EXAMPLE: 1
'''
class A:
def m1(self):
print("in m1 from A")
class B(A):
def m1(self):
super().m1()
print("in m1 from B")
class C(B):
def m1(self):
super(B, self).m1()
print("in m1 from C")
obj = C()
obj.m1()
'''
# EXAMPLE: 2
'''
class A:
def m1(self):
print("in m1 from A")
class B(A):
def m1(self):
super().m1()
print("in m1 from B")
class C(B):
def m1(self):
super().m1()
print("in m1 from C")
class D(C):
def m1(self):
super().m1()
print("in m1 from D")
class E(D):
def m1(self):
super(B, self).m1()
print("in m1 from E")
obj = E()
obj.m1()
'''
# EXAMPLE: 3
'''
class Parent:
def __init__ (self, name, age):
self.name = name
self.age = age
def show(self):
print(self.name)
print(self.age)
class Child(Parent):
def __init__ (self, name, age, city, pincode):
super().__init__(name, age) # PARENT CONSTRUCTOR
self.city = city
self.pincode = pincode
def show(self):
super(Child, self).show()
print(self.city)
print(self.pincode)
class GrandChild(Child):
def __init__(self, name, age, city, pincode, height, weight):
super().__init__(name, age, city, pincode) # PARENT CONSTRUCTOR
self.height = height
self.weight = weight
def display(self):
super(Child, self).show()
print(self.height)
print(self.weight)
obj = GrandChild('Nitin', 50, 'Sangli', 416410, '5 Feet 10 Inches', 70)
obj.display()
'''
# ☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻☺☻