1 files changed, 41 insertions, 41 deletions
diff --git a/Demo/sockets/udpecho.py b/Demo/sockets/udpecho.py
index 720cfe1..5181c82 100755
--- a/Demo/sockets/udpecho.py
+++ b/Demo/sockets/udpecho.py
@@ -12,52 +12,52 @@ ECHO_PORT = 50000 + 7
 BUFSIZE = 1024
 
 def main():
-	if len(sys.argv) < 2:
-		usage()
-	if sys.argv[1] == '-s':
-		server()
-	elif sys.argv[1] == '-c':
-		client()
-	else:
-		usage()
+    if len(sys.argv) < 2:
+        usage()
+    if sys.argv[1] == '-s':
+        server()
+    elif sys.argv[1] == '-c':
+        client()
+    else:
+        usage()
 
 def usage():
-	sys.stdout = sys.stderr
-	print 'Usage: udpecho -s [port]            (server)'
-	print 'or:    udpecho -c host [port] <file (client)'
-	sys.exit(2)
+    sys.stdout = sys.stderr
+    print 'Usage: udpecho -s [port]            (server)'
+    print 'or:    udpecho -c host [port] <file (client)'
+    sys.exit(2)
 
 def server():
-	if len(sys.argv) > 2:
-		port = eval(sys.argv[2])
-	else:
-		port = ECHO_PORT
-	s = socket(AF_INET, SOCK_DGRAM)
-	s.bind(('', port))
-	print 'udp echo server ready'
-	while 1:
-		data, addr = s.recvfrom(BUFSIZE)
-		print 'server received %r from %r' % (data, addr)
-		s.sendto(data, addr)
+    if len(sys.argv) > 2:
+        port = eval(sys.argv[2])
+    else:
+        port = ECHO_PORT
+    s = socket(AF_INET, SOCK_DGRAM)
+    s.bind(('', port))
+    print 'udp echo server ready'
+    while 1:
+        data, addr = s.recvfrom(BUFSIZE)
+        print 'server received %r from %r' % (data, addr)
+        s.sendto(data, addr)
 
 def client():
-	if len(sys.argv) < 3:
-		usage()
-	host = sys.argv[2]
-	if len(sys.argv) > 3:
-		port = eval(sys.argv[3])
-	else:
-		port = ECHO_PORT
-	addr = host, port
-	s = socket(AF_INET, SOCK_DGRAM)
-	s.bind(('', 0))
-	print 'udp echo client ready, reading stdin'
-	while 1:
-		line = sys.stdin.readline()
-		if not line:
-			break
-		s.sendto(line, addr)
-		data, fromaddr = s.recvfrom(BUFSIZE)
-		print 'client received %r from %r' % (data, fromaddr)
+    if len(sys.argv) < 3:
+        usage()
+    host = sys.argv[2]
+    if len(sys.argv) > 3:
+        port = eval(sys.argv[3])
+    else:
+        port = ECHO_PORT
+    addr = host, port
+    s = socket(AF_INET, SOCK_DGRAM)
+    s.bind(('', 0))
+    print 'udp echo client ready, reading stdin'
+    while 1:
+        line = sys.stdin.readline()
+        if not line:
+            break
+        s.sendto(line, addr)
+        data, fromaddr = s.recvfrom(BUFSIZE)
+        print 'client received %r from %r' % (data, fromaddr)
 
 main()