pause/resume a python script in middle

Question

Can I have a running python script(under Windows)being paused in the middle by user , and resume again when user decides ?

There is a main manager program which gen

Answer 1

If it were unix I'd recommend signal, but here is a crude version that does what you ask.

import time

while True:
    try:
        time.sleep(1)  # do something here
        print '.',

    except KeyboardInterrupt:
        print '\nPausing...  (Hit ENTER to continue, type quit to exit.)'
        try:
            response = raw_input()
            if response == 'quit':
                break
            print 'Resuming...'
        except KeyboardInterrupt:
            print 'Resuming...'
            continue

Use Ctrl+C to pause, and ENTER to resume. Ctrl+Break can probably be used as a harsh kill, but I don't have the key on this keyboard.

A more robust version could use select on a pipe/socket, or even threads.