python - 克服python telnet lib中对等错误导致连接重置的更好解决方案？

Question

> retry = range(3) 
> for attempt in retry:
         try:
>            try:
>                tn = telnetlib.Telnet(HOST)
>            except exception  as e:
>                 log error
> 
>             firing cmd
>             break    
          except Exception as e: 
>               log error    
>         finally:
>               telnet close

是最好的方式还是我可以在 telnet lib.best 方式中重试多少次需要。