twisted.internet.error.ReactorAlreadyInstalledError：反应器已安装

Question

当我多次运行爬网过程时出现此错误。我正在使用 scrapy 2.6 这是我的代码：

from scrapy.crawler import CrawlerProcess
from football.spiders.laliga import LaligaSpider
from scrapy.utils.project import get_project_settings

process = CrawlerProcess(settings=get_project_settings())
for i in range(1, 29):
    process.crawl(LaligaSpider, **{'week': i})
process.start()

Answer 1

对我来说这有效，我把它放在 CrawlerProcess 之前

import sys    
if "twisted.internet.reactor" in sys.modules:
    del sys.modules["twisted.internet.reactor"]