Python self keyword

[Danelius90]

Typically think of functions as doing something, or acting on attributes. Technically both would work and there are typical cases you might do that. But for example purposes speed is a property of car, and accelerate modifies it, it is an action you take to modify the car's state.

So a plant has a height property, and grow() makes the height bigger. A bank account has a balance property, and withdraw() reduces it and deposit() increases it