python socket.error：[Errno 98]地址已在使用中[关闭]

当我设置application.py时，它显示socket.error：[Errno 98]地址已在使用中。

Traceback (most recent call last):
File "application.py", line 121, in <module>
main()
File "application.py", line 117, in main
http_server.listen(options.port)
File "/usr/local/lib/python2.7/site-packages/tornado-3.1-py2.7.egg/tornado/tcpserver.py", line 117, in listen
sockets = bind_sockets(port, address=address)
File "/usr/local/lib/python2.7/site-packages/tornado-3.1-py2.7.egg/tornado/netutil.py", line 90, in bind_sockets
sock.bind(sockaddr)
File "/usr/local/lib/python2.7/socket.py", line 224, in meth
return getattr(self._sock,name)(*args)
socket.error: [Errno 98] Address already in use

显然，有另一个进程正在监听端口。您可以使用以下命令找出该过程：

$ lsof -i :8000

或更改龙卷风应用程序的端口。龙卷风的错误信息不明确对此。