__init__
is a contructor method in Python and is automatically called to allocate memory when a new object/instance is created. All classes have a __init__ method associated with them. It helps in distinguishing methods and attributes of a class from local variables.
# class definition
class Student:
def __init__(self, fname, lname, age, section):
self.firstname = fname
self.lastname = lname
self.age = age
self.section = section
# creating a new object
stu1 = Student("Sara", "Ansh", 22, "A2")