following adjustment

mswp.py

@@ -41,3 +41,6 @@ class Datapack:
             print("Error: length is larger than the body")
             raise IOError
 
+    def is_complete(self):
+        pass  # here needs to add more function
+

test_file.py

@@ -0,0 +1,15 @@
+import socket
+
+data = '''post log msw/1.0
+from: network
+
+hello, network!'''
+
+data = data.encode()
+
+s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+s.connect(('127.0.0.1', 3900))
+
+s.sendall(data)
+print(data)
+s.close()