Bash script kill background (grand)children on Ctrl+C

Question

I have a Bash script (Bash 3.2, Mac OS X 10.8) that invokes multiple Python scripts in parallel in order to better utilize multiple cores. Each Python script takes a really

Answer 1

I got it! All you have to do is get rid of that python SIGINT handler.

cat >work.py <<'EOF'
import sys, time, signal
signal.signal(signal.SIGINT, signal.SIG_DFL)
for i in range(10):
    time.sleep(1)
    print "Tick from", sys.argv[1]
EOF 
chmod +x work.py

function process {
    python ./work.py $1
}

process one &
wait $!
echo "All done!"