Add socket

Author: rjLelis

README.md

@@ -24,6 +24,13 @@ The [file operations](/file-operations) encrypts a text using the caesar cipher(
 
 The [object serializer](/object-serializer) takes an object as a argument and serializes into `json`.
 
+### Socket
+
+[client]: /socket/client.py
+[server]: /socket/server.py
+
+[socket](/socket) has a [`client`][client] and a [`server`][server]. The [`client`][client] sends to the [`server`][server] a "`Hello, World`", which in return sends back to the [`client`][client] the same message.
+
 ## Learning source
 
 * [A byte of python(PDF)](https://edisciplinas.usp.br/pluginfile.php/3252353/mod_resource/content/1/b_Swaroop_Byte_of_python.pdf)
@@ -42,6 +49,8 @@ The [object serializer](/object-serializer) takes an object as a argument and se
 
 * [Code Nation Challenge](https://github.com/rjLelis/code-nation-challenge)
 
+* [Aceleração python codenation](https://github.com/rjLelis/aceleracao-python)
+
 ## Some of my Django projects
 
 * [blog_django](https://github.com/rjLelis/blog_django)

socket/client.py

@@ -0,0 +1,12 @@
+import socket
+
+HOST = '127.0.0.1'
+PORT = 8000
+
+if __name__ == "__main__":
+    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
+        s.connect((HOST, PORT))
+        s.sendall(b'Hello, World')
+        data = s.recv(1024)
+
+    print('Recebido', data)

socket/server.py

@@ -0,0 +1,18 @@
+import socket
+
+HOST = '127.0.0.1'
+PORT = 8000
+
+if __name__ == "__main__":
+    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
+        s.bind((HOST, PORT))
+        s.listen()
+        print(f'Esperando conexão em {HOST}:{PORT}')
+        conn, addr = s.accept()
+        with conn:
+            print('Conectado por', addr)
+            while True:
+                data = conn.recv(1024)
+                if not data:
+                    break
+                conn.sendall(b'Server ' + data)