abhinaythurlapati
brainsik
/ gist:4280136
Created
December 13, 2012 21:31
A simple way for Python cron tasks to exit if another process is currently running. Does not use a pidfile.
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| import os | |
| import subprocess | |
| import shlex | |
| def bail_if_another_is_running(): | |
| cmd = shlex.split("pgrep -u {} -f {}".format(os.getuid(), __file__)) | |
| pids = subprocess.check_output(cmd).strip().split('\n') | |
| if len(pids) > 1: | |
| pids.remove("{}".format(os.getpid())) |