class Student:
    def __init__(self, name, school, iq):
        # Attributes of your typical student
        self.name = name
        self.school = school
        self.classes_taken = []
        self.iq = iq

    def greet(self, other_student):
        '''
        Greets other student
        '''

        return "Hi " + other_student.name + \
               " my name is " + self.name

    def take_final(self, class_name, difficulty):
        '''
        Takes final for a class. If student is smart enough,
        he/she passes the class.
        '''

        if self.iq >= difficulty:
            print "You passed " + class_name + "!"
            self.classes_taken.append(class_name)
        else:
            print "YOU FAIL!"



class MITStudent(Student):
    def __init__(self, name):
        # Note here that we use Student's init method and automatically
        # pass in "MIT" as school and 125 as IQ
        Student.__init__(self, name, "MIT", 125)

    def study(self, num_hours):
        '''
        Study for a test, raise your intellect level
        '''
        self.iq += num_hours


class HarvardStudent(Student):
    def __init__(self, name):
        Student.__init__(self, name, "Hahvahd", 95)

    '''
    Greets other student in the Hahvahdian way
    '''
    def greet(self, other_student):
        return "Hi " + other_student.name + \
               " my name is " + self.name + \
               " and I go to Hahvahd."
   

ben = MITStudent("Ben Bitdiddle")
jen = Student("Jen Jones", "BU", 100)
thadeus = HarvardStudent("Thadeus Winchesterfield the Third")

# Students (regardless of whether MITStudent or HarvardStudent or w/e) 
# can all use the greet method, since they all inherit from the student
# class
print ben.greet(jen)
print jen.greet(ben)
print thadeus.greet(ben)

# All students can take finals. If passed, the class is added to
# the student's classes_taken attribute
ben.take_final("5.12", 150)
jen.take_final("CS.101", 95)

# Since ben is a MITStudent, he can use the class' study method
ben.study(30)
ben.take_final("5.12", 150)

# Jen and Thadeus, on the other hand, can't study
# Their study method is not defined, and this would throw an error
##jen.study(10)
##thadeus.study(10)