ConnectionRefusedError: [Errno 111] Connection refused

报错1：ConnectionRefusedError: [Errno 111] Connection refused

我出现这个问题应该是代理问题。ip

pip list查看是否已安装visdom

没安装的话，输入：

pip install visdom -i https://pypi.tuna.tsinghua.edu.cn/simple/

但是清华源不行，出现报错：

报错2：Could not fetch URL https://pypi.tuna.tsinghua.edu.cn/simple/visdom/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.tuna.tsinghua.edu.cn', port=443): Max retries exceeded with url: /simple/visdom/ (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.")) - skipping

换阿里云的源：

pip install visdom -i http://mirrors.aliyun.com/pypi/simple --trusted-host mirrors.aliyun.com

就不出现拒绝连接的报错了。

仅个人纪录。