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From: "Martin A. Brown" <martin@linux-ip.net>
Newsgroups: comp.lang.python
Subject: Re: tcp networking question (CLOSE_WAIT)
Date: Thu, 25 Feb 2016 10:17:27 -0800
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>I'm new to python networking. I am waiting TCP server/client app by 
>using python built-in SocketServer. My problem is if client get 
>killed, then the tcp port will never get released, in CLOSE_WAIT

I did not thoroughly review your code (other than to see that you 
are not using SO_REUSEADDR).  This is the most likely problem.

Suggestion:

  man 7 socket

Look for SO_REUSEADDR.  Then, apply what you have learned to your 
code.

-Martin

-- 
Martin A. Brown
http://linux-ip.net/