socket.error: [Errno 32] 管道损坏

I wrote a client-server python program where the client sends a list to the server, the server receives the array, deletes the first two elements of the list and sends it back to the client. There is no problem with the server receiving the list. But when the server wants to send back the edited list, it is showing error: socket.error: [Errno 32] Broken pipe. The client.py and the server.py are running from different machines with different ip. I'm posting the code for the client.py and server.py below:

客户端.py

import socket, pickle
HOST = '192.168.30.218'
PORT = 50010
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((HOST, PORT))
arr = ['CS','UserMgmt','AddUser','Arnab','Password']
data_string = pickle.dumps(arr)
s.send(data_string)
data = s.recv(4096)
data_arr1 = pickle.loads(data)
s.close()
print 'Received', repr(data_arr1)
print data_arr1;

服务器.py:

import socket, pickle;
HOST = '127.0.0.1';
PORT = 50010;
s= socket.socket(socket.AF_INET, socket.SOCK_STREAM);
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1);
s.bind(('',PORT));
s.listen(1);
conn, addr = s.accept();
print 'Connected by' , addr;
data_addr = list();
while 1:
        data = conn.recv(4096);
        if not data: break;
        data_addr = pickle.loads(data);
        print 'Received Data',  repr(data_addr);
        print data_addr;
        data_addr.pop(0);
        data_addr.pop(0);
        print data_addr;
        data_string1 = pickle.dumps(data_addr);
        s.send(data_string1);
        break;
conn.close();
socket.shutdown();
socket.close();

整个错误信息是:

Traceback (most recent call last):
File "server.py", line 22, in <module>
s.send(data_string1);
socket.error: [Errno 32] Broken pipe

我该如何解决这个问题，以便客户端可以从服务器接收编辑后的列表而不会出现任何错误?提前谢谢你.

s.send(data_string1);

conn.send(data_string1);