import subprocess, threading, time
can_break = False

def run():
    args = ["localtunnel", "8000"]
    popen = subprocess.Popen(args)
    popen.wait()
    print '%s ended with return code: %d' % (args[0], popen.returncode)

t = threading.Thread(target=run)

try:
    t.start()
    while True:
        print 'Main thread...'
        time.sleep(1)
except KeyboardInterrupt:
    can_break = True