why use __init__ in python code example

Example 1: __init__ python

class Person:
  def __init__(self, name, age):
    self.name = name
    self.age = age

p1 = Person("John", 36) // Object definition

print(p1.name)
print(p1.age)

Example 2: what is __init__ in python

# If you are familiar with C++ or Java think of the __init__ method as a constructor.
# It is the method that is being called when the class is called.In the following
# example we will see how we can call the __init__ method

my_variable = MyClass()

Example 3: def __init__

#!/usr/bin/python

class Employee:
   'Common base class for all employees'
   empCount = 0

   def __init__(self, name, salary):
      self.name = name
      self.salary = salary
      Employee.empCount += 1
   
   def displayCount(self):
     print "Total Employee %d" % Employee.empCount

   def displayEmployee(self):
      print "Name : ", self.name,  ", Salary: ", self.salary

"This would create first object of Employee class"
emp1 = Employee("Zara", 2000)
"This would create second object of Employee class"
emp2 = Employee("Manni", 5000)
emp1.displayEmployee()
emp2.displayEmployee()
print "Total Employee %d" % Employee.empCount

Example 4: import __init__.py

# use this for python script(s) in same folder where __init__.py is in
# it'll save typing up common imports for multiple python scripts
from . import *

# if want to be specific
from . import hello_world