search

kiorky / croniter

MIT License
380 stars 37 forks source link

Cron expression with '?' in Day-of-month and Day-of-Week throws CroniterNotAlphaError exception #51

Open kavilakshmi opened 12 months ago

kavilakshmi commented 12 months ago

`from datetime import datetime from croniter import croniter

it = croniter("0/3 ? ", datetime(2021, 1, 1)) for i in range(0, 15): print(it.get_next(datetime).isoformat()) `

Result : Traceback (most recent call last): File "/home/ubuntu/Desktop/oneQuext/quext-scheduler-engine/venv/lib/python3.10/site-packages/croniter/croniter.py", line 190, in _alphaconv return cls.ALPHACONV[index][key] KeyError: '?'

During handling of the above exception, another exception occurred:

Traceback (most recent call last): File "/home/ubuntu/Desktop/oneQuext/quext-scheduler-sync-engine/test_new_scheduler.py", line 74, in it = croniter("0/3 ? ", datetime(2021, 1, 1)-timedelta(days=1)) File "/home/ubuntu/Desktop/oneQuext/quext-scheduler-engine/venv/lib/python3.10/site-packages/croniter/croniter.py", line 183, in init self.expanded, self.nth_weekday_of_month = self.expand(expr_format, hash_id=hash_id) File "/home/ubuntu/Desktop/oneQuext/quext-scheduler-engine/venv/lib/python3.10/site-packages/croniter/croniter.py", line 807, in expand return cls._expand(expr_format, hash_id=hash_id) File "/home/ubuntu/Desktop/oneQuext/quext-scheduler-engine/venv/lib/python3.10/site-packages/croniter/croniter.py", line 749, in _expand t = cls._alphaconv(i, t, expressions) File "/home/ubuntu/Desktop/oneQuext/quext-scheduler-engine/venv/lib/python3.10/site-packages/croniter/croniter.py", line 192, in _alphaconv raise CroniterNotAlphaError( croniter.croniter.CroniterNotAlphaError: [0/3 ? ] is not acceptable

istrupin commented 2 months ago

I'm running into this too -- is this based on a different cron spec perhaps? Would you be open to supporting the ? wildcard given a PR? The wikipedia article linked int he docs does show the ?.