import socket

backlog = 1

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind(("0.0.0.0", 4711))
s.listen(backlog)
print("accept...")
c, a = s.accept()
print("recv...")
while True:
    data = c.recv(10)
    if data: break
print("got", data)
print("done")
s.close()