python socket recv hanging

Question

我试图连接我的代码，这些代码是用python和processing（java）编写的。 python挂起，直到它获得一些数据。这给我带来了一些问题！我使用select.select但它再次挂起，直到它获得一些数据。如果你帮助我，我很高兴。

这是我的python套接字类：

import socket
import select
import time

class client():
    def __init__(self,HOST,PORT):
        self.HOST = HOST              # Symbolic name meaning all available interfaces
        self.PORT = PORT              # Arbitrary non-privileged port
        self.connect()
    def connect(self):
        self.s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        self.s.bind((self.HOST, self.PORT))
        self.s.listen(1)
        self.conn, self.addr = self.s.accept()
        print('Connected by', self.addr)
        return
    def readData(self):
        do_read = False
        try:
            r, _, _ = select.select([self.conn], [], [])
            do_read = bool(r)
        except socket.error:
            pass
        if do_read:
            # ready to receive
            data = self.conn.recv(1024)
            return data
        return 0

print('hello')
x=client('localhost',5204);
#print('Connected by', addr)
while True:
    data=x.readData();
    if data:
        print(data)