Ismael Garrido wrote:
But there's something that I couldn't understand. In the following code,
my guess would be that "I'm back from the death" would never get
printed... but it is... and twice! Why?
It's printed every time B.pong() is called, just as "Pong" is. You print
each one twice - no mystery!
Kent
>>> class A:
def pong(self):
print self.__class__
print "Ping!"
self.times -=1
if self.times >= 0:
self.__class__ = B
self.pong()
>>> class B:
def pong(self):
print self.__class__
print "Pong!"
self.times -=1
self.__class__ = A
self.pong()
print "I'm back from the death"
>>> a = A()
>>> a.times = 3
>>> a.pong()
__main__.A
Ping!
__main__.B
Pong!
__main__.A
Ping!
__main__.B
Pong!
__main__.A
Ping!
I'm back from the death ##Weird!
I'm back from the death
>>> a.__class__
<class __main__.A at 0x00C1AF00>
Thanks,
Ismael
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_______________________________________________
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
