1. Classes and objects¶

Classes combine data (attributes) and operations (methods) in a structure.
An object is a variable whose type is a class, that is, an object is an instance of a class.
We will only see the basic concepts of object-oriented programming.

	1	class Television:
	2	def __init__(self):
	3	self.connected = False
	4	self.channel = 2
	5
	6
	7	room_tv = Television()
	8	living_room_tv = Television()
	9	print(room_tv.connected)
	10	print(room_tv.channel)
	11	living_room_tv.connected = True
	12	living_room_tv.channel = 5
	13	print(living_room_tv.connected)
	14	print(living_room_tv.channel)

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When we declare a class, we are creating a new data type.
Just like when we create a list or a string, we are creating instances or creating an instance of these classes.
It is the same to do list = [] or list = list().
The __init__ method is called constructor and is called when creating the object.
The parameter self means the television object itself.
self.connected is a value of the television object.
Whenever we want to create attributes of an object, we must associate them with itself using self.
Otherwise, if we only write connected = False, connected would be just a local variable of the method and not an attribute.

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