time - Check a log file every 15 minutes with Python -

i trying open log file every 15 minutes , see if file called 'finalize' string. know how check file string not know if there easy way have script every 15 minutes.

is there module of sort allow me this?

[edit] want because writing queue program. once 1 job calls finalize, script load job , monitor until finishes, etc.

the sched module let this. timer class in threading module.

however, either of overkill want.

the easy, , best, way use system's scheduler (scheduled tasks on windows, launch services on mac, cron or related program on other systems) run program every 15 minutes.

alternatively, use time.sleep(15*60), , check whether time.time() 15*60 seconds later last time through loop.

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one advantage of triggering script outside makes easy change trigger. example, change trigger every time file has been modified, instead of every 15 minutes, without changing script @ all. (the exact way that, of course, depends on platform; launchservices, famd, inotify, findfirstchangenotification, etc. work differently. every modern platform has way it.)