Python 3:Socket服务器使用send to（）函数发送到多个客户端

Question

我有一个设置了套接字和线程的服务器，当我将多个客户机连接到它时，如果一个客户机发送了一条消息，服务器会将同一条消息重复返回给它，而不是所有其他连接的客户机。例如：

#server terminal
Server is connected on 8000
('127.0.0.1', 50328) is Connected
('127.0.0.1', 50329) is Connected
Received Message b'hi\n'

#Client 1 terminal
#input
[user1]hi
#returns:
[user1] b'hi\nhi\n'[user1]

#Client 2 terminal
#doesn't return anything, just sits at the prompt
[user2]

服务器的相关代码是：

def clientHandler():
    c, addr = s.accept() 
    print(addr, "is Connected")
    if addr not in clients:
        clients.append(addr)
    try:
        while True:
            data = c.recv(1024)
            if not data: 
                break 
            print("Received Message ", repr(data))
            for client in clients:
                c.sendto(data, client)
    except:
        print("Error. Data not sent.")

我读过以下资料，但没有用：

python tcp server sending data to multiple clients

https://docs.python.org/3/library/socket.html

我必须做什么才能使它通过服务器向所有其他用户发送user1的消息？

编辑1： 所有server.py代码：

from socket import *
from threading import Thread

clients = []

def clientHandler():
    c, addr = s.accept() 
    print(addr, "is Connected")
    if addr not in clients:
        clients.append(addr)
    try:
        while True:
            data = c.recv(1024)
            if not data: 
                break 
            for client in clients:
                c.sendto(data, client)
    except:
        print("Error. Data not sent to all clients.")

HOST = '' #localhost
PORT = 8000

s = socket(AF_INET, SOCK_STREAM)
s.bind((HOST, PORT))
s.listen(5)

print("Server is running on "+ str(PORT))

#Thread(target=clientHandler).start()
#Thread(target=clientHandler).start()
#Thread(target=clientHandler).start()

for i in range(5): 
    Thread(target=clientHandler).start()

s.close()