use os.kill instead of signal.signal which sets up a handler instead
use os.kill instead of signal.signal which sets up a handler instead

andresriancho/billiard,pombredanne/billiard,pombredanne/billiard,jakirkham/billiard,jakirkham/billiard,andresriancho/billiard,flaviogrossi/billiard,flaviogrossi/billiard,djsmith42/billiard,djsmith42/billiard