#     Define a class, which have a class parameter and have a same instance parameter.: class Person:    # Define the class parameter "name"    name = "Person"        def __init__(self, name = None):        # self.name is the instance parameter        self.name = namejeffrey = Person("Jeffrey")print "%s name is %s" % (Person.name, jeffrey.name)nico = Person()nico.name = "Nico"print "%s name is %s" % (Person.name, nico.name)