This bit of code hangs Python Indefinitely

[brad]

url_queue = Queue.Queue(256)
for subnet in subnets:
     url_queue.put(subnet)

The problem is that I have 512 things to add to the queue, but my limit 
is half that... whoops. Shouldn't the interpreter tell me that I'm an 
idiot for trying to do this instead of just hanging? A message such as 
this would be more appropriate:

"Hey fool, you told me to only accept 256 things and you're trying to 
give me 512... what's up with that?"