Jokes

# Some jokes on Python :)

class A():
    def foo(self):
        print 'foo'
    def bar(self):
        print 'bar'

class B():
    def __init__(self, param = -1):
        self.x = param

# Now have a nice day...

a1 = A()
a2 = A()

a1.foo(), a2.foo()

A.bar = lambda: 1       # function that returns 1 - replaced for class A. Will not touch a1 and a2!

a3 = A()

# Please enjoy yourselves...
print dir(a1)
print dir(a2)
print dir(a3)
print dir(A)

############################################################
b1 = B(1)

# ...
del B.__init__      # Remove constructor from class

print dir(b1)
print dir(B)

# Now try to create object :)

try:
    b2 = B(2)
except:
    print ':('

b3 = B()                # Though the default constructor is possible way to...