# example2.py
# Steve Marschner (srm2)
# Lecture demo: A class that defines a few things that go in the class,
# illustrating class variables and methods

class Example2(object):
    """A class that defines some things."""

    # This is a class variable.
    a = 29

    # This is a method that 
    # writes to an instance variable.
    def set_b(self, x):
        self.b = x

    # This is a method that reads
    # from a class variable and an
    # instance variable.
    def f(self):
        return self.a * self.b