Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

LookupError: No trigger by the name "interval" was found

See original GitHub issue

Originally reported by: Rodrigo Brim (Bitbucket: rodrigo_brim, GitHub: Unknown)

Hello.

I’m getting this error with OSX 10.9.4. The following lines describes my problem. Sorry if this is a stupid post.

#!bash

rbr:python rodrigo$ pip list | grep -i apscheduler
APScheduler (3.0.1)

rbr:python rodrigo$ cat ./schedule.py

#!python

#!/usr/bin/python
from datetime import datetime
import os

from apscheduler.schedulers.blocking import BlockingScheduler

def tick():
    print('Tick! The time is: %s' % datetime.now())

if __name__ == '__main__':
    scheduler = BlockingScheduler()
    scheduler.add_job(tick, 'interval', seconds=3)
    print('Press Ctrl+{0} to exit'.format('Break' if os.name == 'nt' else 'C'))

    try:
        scheduler.start()
    except (KeyboardInterrupt, SystemExit):
        pass

#!bash

rbr:python rodrigo$ ./schedule.py 
Traceback (most recent call last):
  File "./schedule.py", line 14, in <module>
    scheduler.add_job(tick, 'interval', seconds=3)
  File "/Library/Python/2.7/site-packages/apscheduler/schedulers/base.py", line 330, in add_job
    'trigger': self._create_trigger(trigger, trigger_args),
  File "/Library/Python/2.7/site-packages/apscheduler/schedulers/base.py", line 782, in _create_trigger
    return self._create_plugin_instance('trigger', trigger, trigger_args)
  File "/Library/Python/2.7/site-packages/apscheduler/schedulers/base.py", line 766, in _create_plugin_instance
    raise LookupError('No {0} by the name "{1}" was found'.format(type_, alias))
LookupError: No trigger by the name "interval" was found
rbr:python rodrigo$