Pit in django (1): gaierror Errno -3 Temporary failure in name resolution

The reason for the error is that localhost.localdomain cannot be resolved. At this time, modify /etc/hosts and modify it as follows

127.0.0.1       localhost.localdomain localhost

Modify the resolvconf file: DNS server resolution configuration

vim /etc/resolv.conf

nameserver 202.96.209.133

nameserver 61.129.88.123

nameserver 114.114.114.114