playwright: local variable ‘page‘ referenced before assignment

1. 安装好playwright后，运行相关程序出现此错误，按照下述链接中的方法安装相关组件和浏览器驱动后，问题得以解决。

https://www.cnblogs.com/fengyangsheng/p/17531254.html
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2. 安装playwright

pip install -i https://mirrors.aliyun.com/pypi/simple/ playwright
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安装组件和浏览器驱动

playwright install
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