stackless_crash.py

import stackless

c = stackless.channel()

def receiver(c, name):
    while True:
        val =c.receive()
        print name, val
        stackless.schedule()

stackless.tasklet(receiver)(c, 'a')
stackless.tasklet(receiver)(c, 'b')

for i in xrange(0, 10):
    c.send(i)

if hasattr(c.queue, '__getitem__'):
    # pypy
    c.queue[0].kill()
else:
    # stackless
    c.queue.kill()

c.send(100)
c.send(200)

print "NEVER REACHED ON PYPY"