python相关

复制文件或文件夹

https://www.cnblogs.com/keeptg/p/10944109.html

删除文件或文件夹

https://www.cnblogs.com/aaronthon/p/9509538.html

上下文管理器；__exit__--__enter__

https://www.cnblogs.com/flashBoxer/p/9664813.html

paramiko

https://www.cnblogs.com/xiao987334176/p/11110557.html

threading  event

https://blog.csdn.net/weixin_42205776/article/details/89740015

 url编码解码

https://www.cnblogs.com/caicaihong/p/5687522.html

虚拟环境env

https://www.cnblogs.com/freely/p/8022923.html

pip不能安装升级

https://blog.csdn.net/jiangjiang_jian/article/details/80286220

requests sslError

https://www.cnblogs.com/ajianbeyourself/p/11156271.html