why the method get() of python Queue is hang on there?

[zxo102]

Hi,
   I am using Queue from python2.4. Here is what happen to me:

import Queue
b = Queue.Queue(0)
b.put(9999)
b.get()   # this is ok, it pops out 9999
b.get()   # this one does not return anything and is hang on there

Anybody knows what is going on with the second b.get()?

ouyang