A **constructor** is used initialize an object’s state. In Python, `_init_` behaves like a constructor for a class. 

>**`_init_`** is called whenever a classes' object is created.

**`self`** represents a class's instance and is required to access any variables or methods within the class.

class Code: 
	def __init__(self, data):
		self.data = data
	def print_data(self):
		print("Data is", self.data )

p = Code(3) ## Instance of class. 
p.print_data()
## __init__ is the first method that is called when you initilaze an object
## self is used to access the attribue data. 

What is def __init__ self in Python?

Constructors initialize an object's state in Python, with _init_ acting as the class constructor. Self refers to the class instance.