python - Python：服务器-客户端连接 - 错误：服务器崩溃

Question

1. 我打开服务器
2. 我打开客户端
3. 客户端向服务器发送“连接请求”
4. 服务器接收“连接请求”
5. 服务器向客户端发送“已连接”
6. 客户端recvs从服务器“连接”
7. 客户端打印“已连接”！
8. 服务器崩溃，我找不到原因（我也看不到错误）。

服务器：

from socket import *;

iSocket = socket( AF_INET, SOCK_DGRAM );
iSocket.bind( ( "", 4325 ) );

while True:

    recv_data, addr = iSocket.recvfrom( 2048 );

    if addr[ 0 ] == "127.0.0.1":

        #stuff

    elif recv_data == "on":
        print "New connection:", addr[ 0 ];

    elif recv_data == "connectrequest":
        iSocket.sendto( "connected", addr );

客户：

import time;
import select;
from socket import *;

address = ( '192.168.0.101', 4325 );

iSocket = socket( AF_INET, SOCK_DGRAM );
iSocket.connect( address );

reconnect = 10;
last_reconnect = 0;
connected = False;

while connected == False:

    if last_reconnect <= int( time.time( ) ) + reconnect:
        print "Connecting...";
        iSocket.sendto( "connectrequest", address );

    data_available = select.select( [ iSocket ], [ ], [ ], 11 )

    if data_available[ 0 ]:
        recv_data, addr = iSocket.recvfrom( 2048 );

        if recv_data == "connected":
            connected = True;
            print "Connected!";

iSocket.sendto( "on", address );

while True:

    recv_data, addr = iSocket.recvfrom( 2048 );
    print recv_data, addr;