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我需要帮助来安排每隔N分钟运行一次蜘蛛。早期我看到大多数人使用reactor.callLater
和reactor.run
来达到这个目的,但似乎现在没有可能使用这些功能。我怎样才能安排它programmaticaly?安排scrapy蜘蛛每隔N分钟运行一次
def run_crawl():
"""
Run a spider within Twisted. Once it completes,
wait 5 seconds and run another spider.
"""
runner = CrawlerRunner(get_project_settings())
runner.crawl(SpiderA)
runner.crawl(SpiderB)
deferred = runner.join()
deferred.addCallback(reactor.callLater, 5, run_crawl)
return deferred
run_crawl()
reactor.run()
这时我的爬虫程序由Windows任务调度程序调度,但我想以编程方式安排它。