I think it works!

server.py

@@ -79,10 +79,14 @@ def room_description(self, room_number):
         :return: str
         """
 
-        # TODO: YOUR CODE HERE
-
-        pass
+        return [
+            "You are in the room with the red wallpaper.",
+            "You are in the room with the white wallpaper.",
+            "You are in the room with the blue wallpaper.",
+            "You are in the room with the star wallpaper.",
+        ][room_number]
 
+
     def greet(self):
         """
         Welcome a client to the game.
@@ -108,9 +112,12 @@ def get_input(self):
         :return: None 
         """
 
-        # TODO: YOUR CODE HERE
+        received = b''
+        while b'\n' not in received:
+            received += self.client_connection.recv(16)
+
+        self.input_buffer = received.decode().strip()
 
-        pass
 
     def move(self, argument):
         """
@@ -133,9 +140,27 @@ def move(self, argument):
         :return: None
         """
 
-        # TODO: YOUR CODE HERE
+        if self.room == 0 and argument == "north":
+                self.room = 3
+
+        if self.room == 0 and argument == "west":
+            self.room = 1
+
+        if self.room == 0 and argument == "east":
+            self.room = 2
 
-        pass
+        if self.room == 1 and argument == "east":
+            self.room = 0
+
+        if self.room == 2 and argument == "west":
+            self.room = 0
+
+        if self.room == 3 and argument == "south":
+            self.room = 0
+
+        self.output_buffer = self.room_description(self.room)
+
+
 
     def say(self, argument):
         """
@@ -151,9 +176,7 @@ def say(self, argument):
         :return: None
         """
 
-        # TODO: YOUR CODE HERE
-
-        pass
+        self.output_buffer = 'You say, "{}"'.format(argument)
 
     def quit(self, argument):
         """
@@ -167,10 +190,9 @@ def quit(self, argument):
         :return: None
         """
 
-        # TODO: YOUR CODE HERE
-
-        pass
-
+        self.done = True
+        self.output_buffer = "Goodbye!"
+
     def route(self):
         """
         Examines `self.input_buffer` to perform the correct action (move, quit, or
@@ -183,9 +205,19 @@ def route(self):
         :return: None
         """
 
-        # TODO: YOUR CODE HERE
+
+        received = self.input_buffer.split(" ")
+
+        command = received.pop(0)
+        arguments = " ".join(received)
 
-        pass
+        {
+            'quit': self.quit,
+            'move': self.move,
+            'say': self.say,
+        }[command](arguments)
+
+
 
     def push_output(self):
         """
@@ -197,10 +229,8 @@ def push_output(self):
         :return: None 
         """
 
-        # TODO: YOUR CODE HERE
-
-        pass
-
+        self.client_connection.sendall(b"OK! " + self.output_buffer.encode() + b"\n")
+
     def serve(self):
         self.connect()
         self.greet()