band.py

__author__ = 'Jonathan'

class Musician(object):
    def __init__(self, sounds):
        self.sounds = sounds

    def solo(self, length):
        for i in range(length):
            print(self.sounds[i % len(self.sounds)],)
        print("")

class Bassist(Musician): # The Musician class is the parent of the Bassist class
    def __init__(self):
        # Call the __init__ method of the parent class
        super(Bassist, self).__init__(["Twang", "Thrumb", "Bling"])

class Guitarist(Musician):
    def __init__(self):
        # Call the __init__ method of the parent class
        super(Guitarist, self).__init__(["Boink", "Bow", "Boom"])

    def tune(self):
        print("Be with you in a moment")
        print("Twoning, sproing, splang")

class Drummer(Musician):
    def __init__(self):
        # Call the __init__ method of the parent class
        super(Drummer, self).__init__(["Tss", "Ding", "Dong"])

    def count_combust(self):
        print("One, two, three, four")
        print("Combust!")

class Band(object):
    def __init__(self, hire):
        self.hire = hire
    def hire_person(self):
        if self.hire == Bassist:
            hire = Bassist()
            one = hire
            print(one.solo(10))
        elif self.hire == Guitarist:
            hire = Guitarist()
            one = hire
            print(one.solo(10))
        else:
            hire = Guitarist()
            print(hire.tune())



def main():
    nigel = Guitarist()
    nigel.solo(6)
    nigel.tune()
    print("Nigel does", nigel.sounds)

    joe = Drummer()
    joe.solo(4)
    joe.count_combust()

    pythonic = Band(Guitarist)
    pythonic.hire_person()


if __name__ == '__main__':
    main()

You're passing a class when you're creating the band, like pythonic = Band(Guitarist). the problem with that is that your band will only be able to hire Guitarists! Also, it doesn't really hire them, it just invites them over for a jam, they play and then they're gone! What if Band had a property where you could append more band members?