#!/usr/bin/python

class Student:

  course = "CHEM 3412"

  def __init__(self, name, test1=0, test2=0):
    self.name = name
    self.test1 = test1
    self.test2 = test2

  def compute_average(self):
    return ((self.test1 + self.test2)/2)

  def print_data(self):
    print "The grade for %s in %s is %4.1f" %  \
      (self.name, self.course, self.compute_average())

David = Student("David", 90, 100)
Bob = Student("Bob", 60, 80)

David.print_data()
Bob.print_data()