Python线程：为什么thread.start（）被阻止？

我正在尝试在线程中运行线程。当我执行时monitor.startMonitoring()，它卡在该函数中，特别是on threading.Thread(target=self._startMonitoring(), daemon=True).start()。

我该怎么办才能转到代码的最后一行（打印语句）？

谢谢

host = '127.0.0.1'
port = 9000

def _receiveHealthMsg(clientsock, clientaddr):
    try:
        while True:
            print(f'{clientaddr} : {clientsock.recv(1024).decode("utf-8")}: {datetime.datetime.now().isoformat()}')
    except ConnectionResetError:
        print("Connection has been severed")


class Monitor:
    def __init__(self, host, port):
        self._sock = socket.socket()
        self._sock.bind((host, port))
        self._sock.listen(5)
        self._threads = []
        self._clients = []

    def startMonitoring(self):
        threading.Thread(target=self._startMonitoring(), daemon=True).start()

    def _startMonitoring(self):
        while True:
            c, addr = self._sock.accept()
            thread = threading.Thread(target=_receiveHealthMsg, args=(c, addr))
            thread.start()
            self._threads.append(thread)
            self._clients.append((c, addr))

monitor = Monitor(host, port)
monitor.startMonitoring()

print('do some stuff here while threads are running')