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

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时间:2020-08-19 05:29:14  来源:igfitidea点击:

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

python

提问by arshpreet

I am having following import error

我有以下导入错误

"ImportError: No module named scheduler"

“导入错误:没有名为调度程序的模块”

when I run the following python script:

当我运行以下 python 脚本时:

"""
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

我已经使用以下命令安装了 APS 调度程序: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"

我还使用以下方法进行了升级:sudo pip install apscheduler --upgrade 还使用“sudo apt-get install update && sudo apt-get upgrade”升级了我的系统

采纳答案by Mahesh Shitole

I got same issue, but then I found,

我遇到了同样的问题,但后来我发现,

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

我已经安装了 apscheduler 版本 3,然后我转移到版本 2.1.2 使用,

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.

在切换到版本 2.1.2 之前只需签出,如果您想使用版本 3 中添加的额外功能。就我而言,我不需要太多。

回答by Gerrat

Your import is wrong. It should be:

你的导入是错误的。它应该是:

from apscheduler.schedulers.blocking import BlockingScheduler

Reference example here:

参考例子在这里

"""
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