Page 238 -

reinventing the wheel

Emmm...maybe I’m missing something, but
isn’t your Athlete class wasteful? I mean,
you’ve extended it with functionality that’s
already in lists, which feels a little like
reinventing the wheel to me...

Yes, your Athlete class is much like a list.
Your Athlete class does indeed behave like a list most
of the time, and you’ve added methods to expose some list
functionality to the users of your class. But it’s true: you are
reinventing the wheel here. Your add_time() method
is a thin wrapper around the list append() method and
your add_times() method is list’s extend() method in
disguise.
In fact, your Athlete class only differs from Python’s list
due to the inclusion of the name and dob object attributes.

202 Chapter 6