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diff --git a/Demo/threads/telnet.py b/Demo/threads/telnet.py
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+# Minimal interface to the Internet telnet protocol.
+#
+# *** modified to use threads ***
+#
+# It refuses all telnet options and does not recognize any of the other
+# telnet commands, but can still be used to connect in line-by-line mode.
+# It's also useful to play with a number of other services,
+# like time, finger, smtp and even ftp.
+#
+# Usage: telnet host [port]
+#
+# The port may be a service name or a decimal port number;
+# it defaults to 'telnet'.
+
+
+import sys, os, time
+from socket import *
+import thread
+
+BUFSIZE = 8*1024
+
+# Telnet protocol characters
+
+IAC  = chr(255)	# Interpret as command
+DONT = chr(254)
+DO   = chr(253)
+WONT = chr(252)
+WILL = chr(251)
+
+def main():
+	host = sys.argv[1]
+	try:
+		hostaddr = gethostbyname(host)
+	except error:
+		sys.stderr.write(sys.argv[1] + ': bad host name\n')
+		sys.exit(2)
+	#
+	if len(sys.argv) > 2:
+		servname = sys.argv[2]
+	else:
+		servname = 'telnet'
+	#
+	if '0' <= servname[:1] <= '9':
+		port = eval(servname)
+	else:
+		try:
+			port = getservbyname(servname, 'tcp')
+		except error:
+			sys.stderr.write(servname + ': bad tcp service name\n')
+			sys.exit(2)
+	#
+	s = socket(AF_INET, SOCK_STREAM)
+	#
+	try:
+		s.connect(host, port)
+	except error, msg:
+		sys.stderr.write('connect failed: ' + `msg` + '\n')
+		sys.exit(1)
+	#
+	thread.start_new(child, (s,))
+	parent(s)
+
+def parent(s):
+	# read socket, write stdout
+	iac = 0		# Interpret next char as command
+	opt = ''	# Interpret next char as option
+	while 1:
+		data, dummy = s.recvfrom(BUFSIZE)
+		if not data:
+			# EOF -- exit
+			sys.stderr.write( '(Closed by remote host)\n')
+			thread.exit_prog(1)
+		cleandata = ''
+		for c in data:
+			if opt:
+				print ord(c)
+				print '(replying: ' + `opt+c` + ')'
+				s.send(opt + c)
+				opt = ''
+			elif iac:
+				iac = 0
+				if c == IAC:
+					cleandata = cleandata + c
+				elif c in (DO, DONT):
+					if c == DO: print '(DO)',
+					else: print '(DONT)',
+					opt = IAC + WONT
+				elif c in (WILL, WONT):
+					if c == WILL: print '(WILL)',
+					else: print '(WONT)',
+					opt = IAC + DONT
+				else:
+					print '(command)', ord(c)
+			elif c == IAC:
+				iac = 1
+				print '(IAC)',
+			else:
+				cleandata = cleandata + c
+		sys.stdout.write(cleandata)
+		sys.stdout.flush()
+##		print 'Out:', `cleandata`
+
+def child(s):
+	# read stdin, write socket
+	while 1:
+		line = sys.stdin.readline()
+##		print 'Got:', `line`
+		s.send(line)
+
+main()