apscheduler

Apscheduler skipping job executions due to maximum number of instances

由 試著忘記壹切 提交于 2021-02-20 09:32:50
问题 I am trying to use APScheduler to run periodic jobs with an IntervalTrigger, I've intentionally set the maximum number of running instances to one because I don't want jobs to overlap. Problem is that after some time the scheduler starts reporting that the maximum number of running instance for a job have been reached even after it previously informed that the job finished successfully, I found this on the logs: 2015-10-28 22:17:42,137 INFO Running job "ping (trigger: interval[0:01:00], next

APScheduler:Trigger New job after completion of previous job

由 我只是一个虾纸丫 提交于 2021-02-07 22:38:41
问题 I'm using APScheduler(3.5.3) to run three different jobs. I need to trigger the second job immediately after the completion of first job. Also I don't know the completion time of first job.I have set trigger type as cron and scheduled to run every 2 hours. One way I overcame this is by scheduling the next job at the end of each job. Is there any other way we can achieve it through APScheduler? 回答1: This can be achieved using scheduler events. Check out this simplified example adapted from the

APScheduler:Trigger New job after completion of previous job

由 巧了我就是萌 提交于 2021-02-07 22:37:31
问题 I'm using APScheduler(3.5.3) to run three different jobs. I need to trigger the second job immediately after the completion of first job. Also I don't know the completion time of first job.I have set trigger type as cron and scheduled to run every 2 hours. One way I overcame this is by scheduling the next job at the end of each job. Is there any other way we can achieve it through APScheduler? 回答1: This can be achieved using scheduler events. Check out this simplified example adapted from the

Django run tasks (possibly) in the far future

由 时间秒杀一切 提交于 2021-02-07 05:39:17
问题 Suppose I have a model Event . I want to send a notification (email, push, whatever) to all invited users once the event has elapsed. Something along the lines of: class Event(models.Model): start = models.DateTimeField(...) end = models.DateTimeField(...) invited = models.ManyToManyField(model=User) def onEventElapsed(self): for user in self.invited: my_notification_backend.sendMessage(target=user, message="Event has elapsed") Now, of course, the crucial part is to invoke onEventElapsed

python apschedule BlockingScheduler with interval trigger: Start immediately

由 断了今生、忘了曾经 提交于 2020-12-29 13:13:29
问题 I am using python apscheduler to schedule a specific task every 45 minutes. The problem is, when i add the job and start the scheduler, it starts at 45 minutes from now. from apscheduler.schedulers.blocking import BlockingScheduler class myClass: def schedule(self): self.scheduler = BlockingScheduler() self.scheduler.add_job(self.myJob, 'interval', minutes=45) self.scheduler.start() def myJob(self): print('I finally started') I tried setting start_date, but with no success. How can i make

python apschedule BlockingScheduler with interval trigger: Start immediately

由 喜你入骨 提交于 2020-12-29 13:11:41
问题 I am using python apscheduler to schedule a specific task every 45 minutes. The problem is, when i add the job and start the scheduler, it starts at 45 minutes from now. from apscheduler.schedulers.blocking import BlockingScheduler class myClass: def schedule(self): self.scheduler = BlockingScheduler() self.scheduler.add_job(self.myJob, 'interval', minutes=45) self.scheduler.start() def myJob(self): print('I finally started') I tried setting start_date, but with no success. How can i make

Python开发：在mac系统中安装pip

由 不打扰是莪最后的温柔 提交于 2020-12-05 22:08:21
pip用来安装python项目的依赖库。 大多数比较新的python版本都自带pip，所以先检查下pip是否有安装。 终端输入：pip --version 如果没有安装pip，那么就用接下来的方式安装pip。 -- 前言 安装pip的方式是运行一个python文件，因此请先确保电脑中已经安装有python。 这个python文件的内容在互联网上有，放置在【 https://bootstrap.pypa.io/get-pip.py 】中。 因此首先需要将该python文件下载到本地电脑中。 方式一： 在浏览器中访问 https://bootstrap.pypa.io/get-pip.py 网址，如果出现对话框，选择保存文件；如果在浏览器中直接显示其中的代码内容，那么就等着页面内容加载完毕以后，将代码拷贝到文本编辑器中，文件类型定义为.py（比如：get-pip.py）。 方式二： curl https: // bootstrap.pypa.io/get-pip.py -o <#目标文件地址#> 注意：在运行上面的命令行之前，先创建一个以.py为后缀空文件（比如：get-pip.py），用该文件的地址替换上面命令行中的<#目标文件地址#> 下载完该python文件之后，在终端用python运行该文件就好了。 sudo python get-pip.py 或者是 sudo python3

基于Flask-APScheduler实现添加动态定时任务

由 拈花ヽ惹草 提交于 2020-10-24 17:13:30
阅读目录 一、apSheduler 二、Flask-APScheduler 三、动态定时任务 四、uwsgi部署注意事项 一、apSheduler 第一部分内容限于apSheduler3.0以下版本，以上版本可移步至 FastAPI+apSheduler动态定时任务 1. 引子（Introduction） Advanced Python Scheduler (APScheduler) 是一个轻量级但功能强大的进程内任务调度器，允许您调度函数(或任何其他python可调用文件)在您选择的时间执行。 2. 特性（Features） 没有(硬)外部依赖性 api线程安全 支持CPython、Jython、PyPy 可配置的调度机制(触发器): 类似cron调度 单次运行延迟调度(如UNIX“at”命令) 基于时间间隔(以指定的时间间隔运行) 支持多种存储空间 RAM 基于文件的简单数据库 SQLAlchem MongoDB Redis 3. 使用（Usage） 3.1 安装 pip install apscheduler 3.2 启动调度程序 from apscheduler.scheduler import Scheduler sched = Scheduler() sched.start() 3.3 调度job 3.3.1 简单日期调度job 在指定时间执行一次job

How to use APscheduler with scrapy

由 徘徊边缘 提交于 2020-08-24 16:19:05
问题 have this code who run scrapy crawler from script(http://doc.scrapy.org/en/latest/topics/practices.html#run-scrapy-from-a-script). But it doesn't work. from twisted.internet import reactor from scrapy.crawler import Crawler from scrapy import log,signals from spiders.egov import EgovSpider from scrapy.utils.project import get_project_settings def run(): spider =EgovSpider() settings = get_project_settings() crawler = Crawler(settings) crawler.signals.connect(reactor.stop, signal=signals
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