# test.py
# -------
#
# Running this file in Python will work,
#
#   $python test.py
#   [42]
#
# But importing this file from the interpreter will hang on the get():
#
#   $python
#   >>> import test
#   (... hangs ...)
#
# However, if we comment out run() (the last line in this file),
# and instead call run() *AFTER* importing this file in the
# interpreter, it will work:
#
#   (... comment out 'run()' in the last line in this file ...)
#   $python
#   >>> import test
#   >>> test.run()
#   [42]
#
# (Tests were done on Ubuntu 9.10, which has Python 2.6.4rc2)

from multiprocessing import Queue

q = Queue()

def run():
    q.put([42])
    print q.get()

run()