I am currently running a django web app in python where I store cron entries entered by the user into a database. I was wondering if there are any python libraries/packages that will validate these entries before I store them into the database. By validate I mean correct syntax as well as the correct range (ex: month cannot be 15). Does anyone have any suggestions? Thanks!
The Croniter package seems like it may get what you need. Example from the docs:
>>> from croniter import croniter
>>> from datetime import datetime
>>> base = datetime(2010, 1, 25, 4, 46)
>>> iter = croniter('*/5 * * * *', base) # every 5 minites
>>> print iter.get_next(datetime) # 2010-01-25 04:50:00
>>> print iter.get_next(datetime) # 2010-01-25 04:55:00
>>> print iter.get_next(datetime) # 2010-01-25 05:00:00
>>>
>>> iter = croniter('2 4 * * mon,fri', base) # 04:02 on every Monday and Friday
>>> print iter.get_next(datetime) # 2010-01-26 04:02:00
>>> print iter.get_next(datetime) # 2010-01-30 04:02:00
>>> print iter.get_next(datetime) # 2010-02-02 04:02:00
Per the code, it also appears to do validation on the entered format. Likely that you came across this already, but just in case :)