Revise the examples not to use the "from socket import *", and adjust
one comment in the example for clarity.
diff --git a/Doc/lib/libsocket.tex b/Doc/lib/libsocket.tex
index f0b7f8b..b6024ef 100644
--- a/Doc/lib/libsocket.tex
+++ b/Doc/lib/libsocket.tex
@@ -426,10 +426,11 @@
\begin{verbatim}
# Echo server program
-from socket import *
+import socket
+
HOST = '' # Symbolic name meaning the local host
-PORT = 50007 # Arbitrary non-privileged server
-s = socket(AF_INET, SOCK_STREAM)
+PORT = 50007 # Arbitrary non-privileged port
+s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((HOST, PORT))
s.listen(1)
conn, addr = s.accept()
@@ -443,10 +444,11 @@
\begin{verbatim}
# Echo client program
-from socket import *
+import socket
+
HOST = 'daring.cwi.nl' # The remote host
PORT = 50007 # The same port as used by the server
-s = socket(AF_INET, SOCK_STREAM)
+s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((HOST, PORT))
s.send('Hello, world')
data = s.recv(1024)