gistfile1.txt

class A():
    test = 'Everyone'

    def __init__(self):
        self.local = 'Just Me'

    def __str__(self):
        return self.test + " " + self.local

x = A()
y = A()

x.local = 'I am X'
x.test2 = 'me' # just making up a new instance var
#x.test = 'Not me!' # note, we are going to make up a new instance var overwriting the class var!
A.test = 'Everyone will have this' # should change every instances class var
 
# (but uncomment the x.test .. line and see what happens when you change a class variable
# using a particular instance

print x
print y
print x.test2