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copied!<p><em>According to the docs</em>, neither TCPServer nor BaseRequestHandler close the socket unless prompted to do so. The default implementations of both <code>handle()</code> and <code>finish()</code> do nothing. </p> <p>A couple of things might be happening:</p> <ul> <li>You are closing the socket itself or the request which wraps it, or calling <code>server_close</code> somewhere.</li> <li>The socket timeout could have been hit and you have implemented a timeout handler which closes the socket.</li> <li>The client could be actually closing the socket. Code would really help figuring this out.</li> </ul> <p><em>However</em>, my testing confirms your results. Once you return from <code>handle</code> on the server, whether connecting through telnet or Python's <code>socket</code> module, your connection shows up as being closed by the remote host. Handling socket activity in a loop inside handle seems to work:</p> <pre><code>def handle(self): while 1: try: data = self.request.recv(1024) print self.client_address, "sent", data except: pass </code></pre> <p>A brief Google Code Search confirms that this is a typical way of handling a request: <a href="http://www.google.com/codesearch/p?hl=en#kidGrKEZwi0/trunk/bin/stats.py&q=lang:py%20(BaseRequestHandler)&sa=N&cd=52&ct=rc" rel="noreferrer">1</a> <a href="http://www.google.com/codesearch/p?hl=en#EKZaOgYQHwo/unstable/sources/linda-0.6.tar.gz%7Cg33OoHGt0is/linda-0.6/server.py&q=lang:py%20(BaseRequestHandler)&l=118" rel="noreferrer">2</a> <a href="http://www.google.com/codesearch/p?hl=en#93sG5NkuQsA/SoHo/1826/srpsocket.zip%7CH78xpN-0ydY/SRPSocket/SRPSocket.py&q=lang:py%20(BaseRequestHandler)&l=77" rel="noreferrer">3</a> <a href="http://www.google.com/codesearch/p?hl=en#S67yNHIE_f4/authors/id/P/PE/PERRAD/CORBA-Python-0.36.tar.gz%7C1DH3SMWaXOo/CORBA-Python-0.36/rpc1/server.py&q=lang:py%20(BaseRequestHandler)&l=10" rel="noreferrer">4</a>. Honestly, there are plenty of other networking libraries available for Python that I might look to if I were facing a disconnect between the abstraction <code>SocketServer</code> provides and my expectations.</p> <p>Code sample that I used to test:</p> <pre><code>from SocketServer import BaseRequestHandler, TCPServer class TestRequestHandler(BaseRequestHandler): def handle(self): data = self.request.recv(1024) print self.client_address, "sent", data self.request.send(data) class TestServer(TCPServer): def __init__(self, server_address, handler_class=TestRequestHandler): TCPServer.__init__(self, server_address, handler_class) if __name__ == "__main__": import socket address = ('localhost', 7734) server = TestServer(address) server.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) </code></pre>

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