APScheduler(Advance Python Scheduler) ImportError: No module named scheduler

Question

I am having following import error

"ImportError: No module named scheduler"

when I run the following python script:

"""
Demonstrates how to use the blocking scheduler to schedule a job that execute$
"""

from datetime import datetime
import os

from apscheduler.scheduler 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

I have installed APS scheduler using: sudo pip install apscheduler

I have also upgraded using: sudo pip install apscheduler --upgrade Also upgraded my system using "sudo apt-get install update && sudo apt-get upgrade"

score 31 · Answer 1 · answered Sep 07 '14 at 12:10

31

I got same issue, but then I found,

I had installed apscheduler version 3 then I shifted to version 2.1.2 using,

pip uninstall apscheduler
pip install apscheduler==2.1.2

Just checkout before switching to version 2.1.2, If you wanted to use extra features added in version 3. In my case I didn't wanted much.

answered Sep 07 '14 at 12:10

Mahesh Shitole

762
1
6
15

You may need `python3.7` if you prefere to use `apscheduler==3.x`. `python3.7 -m pip install apscheduler` – Laenka-Oss May 17 '22 at 18:19

Gerrat · Accepted Answer · 2019-01-07T16:05:35.783

13

Your import is wrong. It should be:

from apscheduler.schedulers.blocking import BlockingScheduler

Reference example here:

"""
Demonstrates how to use the blocking scheduler to schedule a job that executes on 3 second
intervals.
"""

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

edited Jan 07 '19 at 16:05

answered Jul 23 '14 at 21:33

Gerrat

28,863
9
73
101

1

the "here" url is invalid – Steve Jiang Jan 03 '19 at 07:17
1

@SteveJiang: Thanks. Fixed. – Gerrat Jan 07 '19 at 16:05
Would this continue to run even when I exit or close/shutdown my pc? – Sillians Dec 17 '21 at 10:16
@Sillians_Scilit Nothing will run if you shut down your PC. If you're asking if the program will still run if your computer goes to sleep, then no it won't. – Gerrat Dec 17 '21 at 20:25
@Gerrat thanks for your comment, what scheduler or how can I use a scheduler for in a python script for production. Please do recommend. – Sillians Dec 18 '21 at 23:04
1

@Sillians_Scilit comments aren't the place for new questions. Try posting a new question. – Gerrat Dec 19 '21 at 20:43

APScheduler(Advance Python Scheduler) ImportError: No module named scheduler

2 Answers2

Linked