jupyter 安装出现错误

jupyter pip出现错误：

Retrying (Retry(total=4, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages
.urllib3.connection.VerifiedHTTPSConnection object at 0x7fa7607e5978>: Failed to establish a new connection: [Errno -3] Temporary failure in nam
e resolution',)': /simple/pip/

/etc/resolv.conf是DNS客户机配置文件，用于设置DNS服务器的IP地址及DNS域名，还包含了主机的域名搜索顺序。

修改为这个即可，重启jupyter

# Generated by NetworkManager
nameserver 8.8.8.8      //google服务器
nameserver 8.8.4.4      //google备用服务器