您可以使其成为守护程序。有一个PEP可以提供更完整的解决方案，但是我发现这样做很好。
import os, sys
def become_daemon(our_home_dir='.', out_log='/dev/null', err_log='/dev/null', pidfile='/var/tmp/daemon.pid'):
""" Make the current process a daemon. """
try:
# First fork
try:
if os.fork() > 0:
sys.exit(0)
except OSError, e:
sys.stderr.write('fork #1 Failed" (%d) %s\n' % (e.errno, e.strerror))
sys.exit(1)
os.setsid()
os.chdir(our_home_dir)
os.umask(0)
# Second fork
try:
pid = os.fork()
if pid > 0:
# You must write the pid file here. After the exit()
# the pid variable is gone.
fpid = open(pidfile, 'wb')
fpid.write(str(pid))
fpid.close()
sys.exit(0)
except OSError, e:
sys.stderr.write('fork #2 Failed" (%d) %s\n' % (e.errno, e.strerror))
sys.exit(1)
si = open('/dev/null', 'r')
so = open(out_log, 'a+', 0)
se = open(err_log, 'a+', 0)
os.dup2(si.fileno(), sys.stdin.fileno())
os.dup2(so.fileno(), sys.stdout.fileno())
os.dup2(se.fileno(), sys.stderr.fileno())
except Exception, e:
sys.stderr.write(str(e))
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