Real handling of network errors.

Fix for correctly ignoring net errors: It seems that (at least in
my installed Debian version of python2.4) socket.error does not have an
errno attribute but is simply a tuple of (errno, strerror). So we now
try to get errno first and if this fails we try to use err [0]. This
works for a simple test-script to which I can connect with telnet on
port 4711 -- it will correctly detect errno.EPIPE if I terminate the
telnet session:
#!/usr/bin/python2.4

import socket
import errno
from SocketServer import TCPServer, BaseRequestHandler

class Server (BaseRequestHandler) :
    def handle (self) :
        self.file = self.request.makefile ()
        try :
            while True :
                print >> self.file, "Testing..."
        except socket.error, err :
            print getattr (err, 'errno', "Has no errno")
            print err [0]
            print err [0] == errno.EPIPE
            raise
    # end def handle
# end class Server

server_address = ('', 4711)
s = TCPServer (server_address, Server)
s.serve_forever ()

Sorry for the verbose log-message but I hope to document my debugging
activities

Author: Ralf Schlatterbeck

roundup/cgi/client.py

@@ -1,4 +1,4 @@
-# $Id: client.py,v 1.232 2007-01-15 21:10:26 schlatterbeck Exp $
+# $Id: client.py,v 1.233 2007-01-16 10:16:08 schlatterbeck Exp $
 
 """WWW request handler (also used in the stand-alone server).
 """
@@ -848,6 +848,11 @@ def _socket_op(self, call, *args, **kwargs):
             call(*args, **kwargs)
         except socket.error, err:
             err_errno = getattr (err, 'errno', None)
+            if err_errno is None:
+                try:
+                    err_errno = err[0]
+                except TypeError:
+                    pass
             if err_errno not in self.IGNORE_NET_ERRORS:
                 raise