python code please.

7.4 The Fan class) Design a class named Fan to represent a fan. The class contains: Three constants named SLOW, MEDIUM, and FAST with the values 1, 2, and 3 to denote the fan speed. A private int data field named speed that specifies the speed of the fan. A private bool data field named on that specifies whether the fan is on (the default is False). A private float data field named radius that specifies the radius of the fan. A private string data field named color that specifies the color of the fan. The accessor and mutator methods for all four data fields. A constructor that creates a fan with the specified speed (default SLOW), radius (default 5), color (default blue), and on (default False)