Add the test prototype of programm on python

Test/client.py

@@ -0,0 +1,52 @@
+import os
+import socket
+import threading
+import time
+
+os.system("cls")
+print("   ...Welcome to the CryptoMessanger...   ")
+
+shutdown = False
+join = False
+
+def receving(name, sock):
+    while not shutdown:
+        try:
+            while True:
+                data, addr = sock.recvfrom(1024)
+                print(data.decode("utf-8"))
+                time.sleep(0.2)
+        except:
+            pass
+
+host = socket.gethostbyname(socket.gethostname())
+port = 0
+
+server = ("192.168.0.103", 9090)
+
+sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)  #socket difinition; protocol TCP/IP
+sock.bind((host, port))
+sock.setblocking(0)
+
+alias = input("Name: ")
+
+rT = threading.Thread(target = receving, args = ("RecvThread", sock))
+rT.start()
+
+while not shutdown:
+    if not join:
+        sock.sendto(("[" + alias + "] >> join chat ").encode("utf-8"), server)
+        join = True
+    else:
+        try:
+            message = input()
+            if message != "":
+                sock.sendto(("[" + alias + "] :: " + message).encode("utf-8"), server)
+            time.sleep(0.2)
+        except:
+            sock.sendto(("[" + alias + "] << left chat ").encode("utf-8"), server)
+            shutdown = True
+
+
+rT.join()
+sock.close()

Test/server.py

@@ -0,0 +1,35 @@
+import os
+import socket
+import sys
+
+os.system("cls")
+host = socket.gethostbyname(socket.gethostname())   #ip of the server host machine
+port = 9090
+
+users = []
+
+sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)  #socket difinition; protocol TCP/IP
+sock.bind((host, port))
+
+quit = False
+print("   ...Server started...    ")
+
+while not quit:
+    try:
+        data, addr = sock.recvfrom(1024)
+        if addr not in users:       #add new user
+            users.append(addr)
+
+        print(data.decode("utf-8"))
+
+        #send the message for all users in chat except the sender
+        for user in users:
+            if addr != user:
+                sock.sendto(data, user)
+
+    except:
+        print(sys.exc_info())
+        print("[ Server stopped ]")
+        quit = True;
+
+sock.close()