add client and server implementation for socket communication

.gitignore

@@ -2,4 +2,7 @@
 .idea/*
 
 .venv
-.venv/*
+.venv/*
+
+.winvenv
+.winvenv/*

TP7/7.3/client.py

@@ -0,0 +1,36 @@
+import socket
+import threading
+
+def receive_messages(client_socket):
+    try:
+        while True:
+            msg = client_socket.recv(1024)
+            if msg.decode() == 'stop':
+                print('Received stop signal. Closing connection.')
+                break
+            else:
+                print(f'Message received: {msg.decode()}')
+    except Exception as e:
+        print(f'Error: {e}')
+    finally:
+        client_socket.close()
+
+client_socket = socket.socket()
+client_socket.connect(('localhost', 12345))
+client_socket.send('Coucou'.encode())
+
+# Ask the user for messages to send
+try:
+    while True:
+        msg = input('Message: ')
+        client_socket.send(msg.encode())
+        if msg == 'stop':
+            break
+except KeyboardInterrupt:
+    print('Connection closed')
+finally:
+    client_socket.close()
+
+receive_thread = threading.Thread(target=receive_messages, args=(client_socket,))
+receive_thread.start()
+receive_thread.join()

TP7/7.3/server.py

@@ -0,0 +1,52 @@
+import socket
+import threading
+
+clients = []
+
+def send_to_all(clients, message):
+    for client in clients:
+        try:
+            client.send(message)
+        except Exception as e:
+            print(f'Error sending message to a client: {e}')
+            clients.remove(client)
+
+def client_thread(client_socket, clients):
+    try:
+        while True:
+            msg = client_socket.recv(1024)
+            if msg:
+                print(f'Message received: {msg.decode()}')
+                send_to_all(clients, msg)
+            else:
+                break
+    except Exception as e:
+        print(f'Error: {e}')
+    finally:
+        client_socket.close()
+        clients.remove(client_socket)
+
+server_socket = socket.socket()
+server_socket.bind(('', 12345))
+server_socket.listen()
+
+print('Server is listening for connections...')
+
+try:
+    while True:
+        client_socket, addr = server_socket.accept()
+        print(f'Connection from {addr}')
+        clients.append(client_socket)
+        thread = threading.Thread(target=client_thread, args=(client_socket, clients))
+        thread.start()
+except KeyboardInterrupt:
+    print('Server stopped')
+finally:
+    for client in clients:
+        try:
+            client.shutdown(socket.SHUT_RDWR)
+        except Exception as e:
+            print(f'Error shutting down client socket: {e}')
+        client.close()
+    server_socket.close()
+    print('Server closed')

main.py

@@ -1,7 +0,0 @@
-if __name__ == '__main__':
-    a='1'
-    b=int(a)
-    print(type(a))
-    print(type(b))
-    print(ord('a'))
-    print(chr(97))