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__init__() function in python :This function is automatically called as we create the object of the class.

Parameters may also be passed to function as a following.

class myClass:
 def __init__(self): #automatically called when object is created.
  print("this is constructor")
 def testFun(self,name): 
  print(name)
obj= myClass()
obj.testFun("rahul") #argument is being passed in function name.

Output:
this is constructor
rahul

How to use instance variable in python.

class Student:
 def __init__(self,name,age):
  self.name=name # set values to instance variables
  self.age=age
 def display(self):
  print(self.name)
  print(self.age)
s1=Student("john",30)
s1.display()

Output:
john
30

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