python socket error Errno 98 Address already in use

Question

when i setup application py  it shows that socket error   Errno 98  Address already in use   Traceback  most recent call last   File  application py   line 121  in  lt module gt  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

User · Answer

There is obviously another process listening on the port. You might find out that process by using the following command:

$ lsof -i :8000

or change your tornado app's port. tornado's error info not Explicitly on this.

[python] python socket.error: [Errno 98] Address already in use

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