python socketソケットプログラミング

#   
import socket
phone=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
phone.bind(('127.0.0.1',8000))
phone.listen(5)
conn,addr=phone.accept()
msg=conn.recv(1024)
print('          ',msg)
conn.send(msg.upper)
conn.close()
phone.close()

#   
import socket
phone=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
conn=phone.connect(('127.0.0.1',8000))
phone.send('hello'.encode('utf-8'))
data=phone.recv(1024)
print('           ',data)