basic client-server implementation

simple-client-server/README.md

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+# simple client server
+
+#### Note:
+- Run **`server.py`** first.
+- Now, run **`client.py`**.
+- verify the output.

simple-client-server/client.py

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+# client.py
+
+import socket
+
+HOST, PORT = '127.0.0.1', 1400
+
+s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+s.connect((HOST, PORT))
+
+s.send(b'Hello World')
+data = s.recv(1024)
+
+s.close()
+print(repr(data.decode('ascii')))

simple-client-server/server.py

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+# server.py
+
+import socket
+
+HOST, PORT = '127.0.0.1', 1400
+
+s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+s.bind((HOST, PORT))
+s.listen(1)
+
+conn, addr = s.accept()
+
+print('connected to:', addr)
+
+while 1:
+    data = conn.recv(1024)
+    if not data:
+        break
+    conn.send(data + b' [ addition by server ]')
+        
+conn.close()