【非常重要】flask 运行 Pyppeteer signal only works in main thread

爱被打了一巴掌 2021-09-02 09:35 561阅读 0赞

参考：[https://blog.csdn.net/DerekTheron/article/details/105332315][https_blog.csdn.net_DerekTheron_article_details_105332315]

参考：[https://stackoverflow.com/questions/53522052/flask-app-valueerror-signal-only-works-in-main-thread][https_stackoverflow.com_questions_53522052_flask-app-valueerror-signal-only-works-in-main-thread]

【完美解决】使用flask的run启动debug来运行puppeteer,报错【signal only works in main thread 】的解决方案：[https://blog.csdn.net/weixin\_43343144/article/details/110203479][https_blog.csdn.net_weixin_43343144_article_details_110203479]

解决办法：

centos：使用**gunicorn来运行flask，解决异步的问题**

**window：使用Tornado来运行即可**

**其他工具比如****socketio .... 来跑flask，都可以解决异步的问题**

**如果你直接使用flask内置调试的run方法跑Pyppeteer或其他异步的程序socketio都会报错：signal only works in main thread**

**解决方案：使用【生产环境】linux-gunicorn+gevent或 window-Tornado 或其他 程序来调用flask，就正常了**

[https_blog.csdn.net_DerekTheron_article_details_105332315]: https://blog.csdn.net/DerekTheron/article/details/105332315
[https_stackoverflow.com_questions_53522052_flask-app-valueerror-signal-only-works-in-main-thread]: https://stackoverflow.com/questions/53522052/flask-app-valueerror-signal-only-works-in-main-thread
[https_blog.csdn.net_weixin_43343144_article_details_110203479]: https://blog.csdn.net/weixin_43343144/article/details/110203479