Please use Python,

2 (a) Write Python code that defines a Vehicle class of objects. Each object has an id number (integer) and a speed (integer in km/hr) attribute that are set up on creation. The class should have a --str - method that returns a string with the word Vehicle, its id and speed. (b) Define a Bus class that inherits from Vehicle and has a passengers attribute to hold the number of passengers. Override the --str-- method to include the string Bus (in place of Vehicle) and the number of passengers as well as the previous information (id, speed). (c) Also define a Truck class that inherits from Vehicle and has a load (tonnes) attribute. Again override the --str-- method to display this new information (including the string Truck instead of Vehicle or Bus). (d) Create two Vehicles (id 1 and 2, speed 30), two Buses (ids 3 and 4, speed 45, passengers 30 and 40), and two Trucks (id 5 and 6, speed 55, load 1 and 2). Put them into a list and print out all the members of the list and their attributes using the --str-- methods