Why does python socket server always send "None" while printing a value at the same time?

im setting up a local network game however when i attempt to send a packet size for unpicking a dictionary i keep getting None returned

heres my server (stripped down to the not working portion)

player1 = { # players 2-4 are the exact name but renamed
    "id":1,
    "x": 50,
    "y": 50,
    "alive": True,
    "joined": False
}
def client(con, player_data):
    global player1, player2, player3, player4
    player = player_data
    print(player)

    all_players = (player1, player2, player3, player4)
    msgsize = str(sys.getsizeof(all_players))
    print(msgsize.encode())
    con.send(msgsize.encode())

ootput of the prints

{'id': 1, 'x': 50, 'y': 50, 'alive': True, 'joined': False}
72

my client

class Network:
    def __init__(self, port):
        self.client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        self.server = "100.115.92.197"
        self.port = port
        self.addr = (self.server, self.port)
        
    def connect(self):
        self.client.connect(self.addr)

    def recv(self):
        message_size = self.client.recv(1000).decode()
        print(message_size)

clients output

None

ive tried struct and sys now

i was doing con.send instead of con.sendall, i solved my issue.