first commit

client.py

@@ -0,0 +1,19 @@
+#!/usr/bin/python
+import time
+import socket
+import re
+
+s = socket.socket()
+host = socket.gethostname()
+port = 12345
+
+s.connect((host, port))
+s.send('PING\r')
+recv_line = s.recv(1024)
+print recv_line
+matchObj = re.match(r'.* (\d+\.?\d*)', recv_line)
+if matchObj:
+  print matchObj.group(1)
+else:
+  print 'not matched'
+s.close

server.py

@@ -0,0 +1,22 @@
+#!/usr/bin/python
+import time
+import socket
+
+s = socket.socket()
+host = socket.gethostname()
+port = 12345
+s.bind((host, port))
+
+s.listen(5)
+while True:
+  c, addr = s.accept()
+  print 'Got connection from', addr
+  while True:
+    recv_line = c.recv(1024)
+    print recv_line
+    if recv_line == 'PING\r':
+      time_s = str(time.time())
+      c.send('PONG ' + time_s)
+    break
+  c.close()
+  break