Simple chat with socket

import socket
from getpass import getuser

def receive():
    HOST = '127.0.0.1'
    PORT = 1337
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.bind((HOST, PORT))
    s.listen(1)
    while 1:
        conn, addr = s.accept()
        while 1:
            msg = conn.recv(1024)
            if msg:
                print("%s" % (str(msg)))
            break
        print("Ending connection with client: ", addr)

def send(msg='Nothing'):
    msg = bytes("%s: %s" % (getuser(), msg), 'utf-8')
    HOST = '127.0.0.1'
    PORT = 1337
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.connect((HOST, PORT))
    s.send(msg)

def main():
    choose = int(input('[1] - Receiver\n[2] - Sender\nChoose a option: '))
    if choose == 1:
        receive()
    elif choose == 2:
        while 1:
            msg = input("Write a message: ")
            send(msg)
    else:
        print('Failed to get response from your choose.\n')
        quit(0)

main()