ptvsd-multiprocess-hang.py

#!/usr/bin/python2

import multiprocessing
import time

def test(i):
    print "test({})".format(i)
    time.sleep(0.5)

def main():
    processes = []

    for i in range(1, 1000):
        process = multiprocessing.Process(name='test_{}'.format(i), target=test, args=(i,))
        process.start()
        processes.append(process)

    while [process for process in processes if process.is_alive()]:
        print "Waiting for all processes to finish (... waiting for {}".format([process for process in processes if process.is_alive()])
        pass

    print "All processes done."

if __name__ == '__main__':
    import ptvsd
    ptvsd.options.multiprocess = True
    ptvsd.enable_attach(('10.0.3.10', 5678), redirect_output=True)
    ptvsd.wait_for_attach()

    main()