add example using select/asyncore from http://etutorials.org/Programming/Python+tutorial/Part+IV+Network+and+Web+Programming/Chapter+19.+Sockets+and+Server-Side+Network+Protocol+Modules/19.3+Event-Driven+Socket+Programs/

TcpClient.py

@@ -0,0 +1,13 @@
+import socket
+sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+sock.connect(('localhost', 8881))
+print "Connected to server"
+data = """A few lines of data
+to test the operation
+of both server and client."""
+for line in data.splitlines(  ):
+    sock.sendall(line+'\n')
+    print "Sent:", line
+    response = sock.recv(8192)
+    print "Received:", response
+sock.close(  )