""" There should be no Bird class to start with. A Bird class should only exist as a result of necessity and not empty "convention". Much later, when we learn more about the domain and problem (i.e. 'Birds in general'), we can then extract the Bird class from the existing Ostrich class to enable re-use. """ class Ostrich: def fly(): print("flying")# You can practice Python on the web. # I use dataquest.io to learn. You could use Hackerrank or else CodingGame. # Up to you! Just some suggestions. # By Codexel