Q on classes

[ebolisa]

Clock.set_time() is an instance method. You need to call it using an instance of Clock.

I would rename this method __str__:

    def get_time(self):
        return '{:02d}:{:02d}:{:02d}'.format(self.hours, self.minutes, self.seconds)

Actually, I'm trying to execute set_time() from line 14.