Improve complete with last exercice.

scripts/02_sockets/src/sockets/sockets_complete.py

@@ -30,14 +30,15 @@ def _parse_args():
     return args
 
 
-def answer():
+def answer(addr):
     """
     Returns an answer to the connection.
 
     :return: A string.
     """
-
-    return "Gotcha.\n"
+    out = f"Hello {addr[0]}! You are using port {addr[1]}. Have a nice day!\n"
+    
+    return out
 
 
 def server(port: int=4444):
@@ -54,7 +55,7 @@ def server(port: int=4444):
     while True:
         c, addr = s.accept()
         print('Got connection from', addr)
-        c.send(answer().encode('utf-8'))
+        c.send(answer(addr).encode('utf-8'))
         c.close()
 
 if __name__ == '__main__':

scripts/02_sockets/src/sockets/sockets_step_1.py

@@ -33,6 +33,8 @@ def _parse_args():
         print("Please provide a port for the connection.")
         print(parser.print_help())
         sys.exit(1)
+    else:
+        print("Got port option set to:", args.port)        
         
     return args
 
@@ -47,7 +49,7 @@ def answer():
     return "Gotcha.\n"
 
 
-def server(port: int=4444):
+def server(port: int):
     """
     Opens a socket on a given port and listens to incoming
     requests. When a request comes in, accepts the connection,

scripts/02_sockets/src/sockets/sockets_student.py

@@ -11,7 +11,7 @@
 """
 This module plays with sockets.
 
-More info.
+Fill in more info, explaining what this module does and how to use it.
 
 """
 
@@ -23,10 +23,8 @@ def _parse_args():
     """
     Parses arguments from command line.
     """
-    parser = argparse.ArgumentParser(description="Utilities to use network sockets.")
-    parser.add_argument('-p', '--port', 
-                        help='Port number to open')
-    args = parser.parse_args()
+    #parser = ...
+
     return args
 
 
@@ -40,7 +38,7 @@ def answer():
     return "Gotcha.\n"
 
 
-def server(port: int=4444):
+def server(port: int):
     """
     Opens a socket on a given port and listens to incoming
     requests. When a request comes in, accepts the connection,
@@ -48,14 +46,15 @@ def server(port: int=4444):
 
     :param port: Port number to listen on.
     """
+    print("Starting server..")
 
+    
 if __name__ == '__main__':
 
     # Parse command-line arguments
     args = _parse_args()
-    
 
     # Start our server
-    server(int(args.port))
+    #server(...)