ZERO / HERO
What it has vs what it does

Attributes vs Methods

The analogy

A house HAS things: a colour, four windows, an address. A house DOES things: the door opens, the lights switch on. Attributes are the nouns you can point at; methods are the verbs the house can perform.

Visualizer

What it has vs what it does

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HAS — attributes (nouns)
colour = "white"
windows = 4
lightsOn = false
DOES — methods (verbs)
openDoor()
switchLights()
repaint(colour)

Two columns. Things the house HAS, and things the house DOES.

class House:
    def __init__(self):
        self.colour = "white"     # HAS
        self.lights_on = False    # HAS

    def switch_lights(self):      # DOES
        self.lights_on = not self.lights_on

    def repaint(self, colour):    # DOES
        self.colour = colour
Check yourself

openDoor() is a…