!!! Classes and Methods
This is __Exercise 3__ of the [Micro Python Tutorial].
We can define __classes__ in Python. Classes are defined globally, within the file/module as they begin in column 0.
Within a class its functions are called __methods__. Unlike functions, methods are defined within the scope of the class and are therefore indented within the class's block.
A class has a constructor, a special method named {{{__init__}}}. All special methods in Python are surrounded by double underscores. (There are more of these but we'll get to them later.)
%%python
class Motor:
    def __init__(self, name):
        self.motor_name = name
        self.motor_speed = 0
        print("motor {} ready.".format(self.motor_name))
%%