python socket上传文件的服务端和客户端实现

代码均已测试：希望高人能指点一二

服务端： 

#coding=gbk'''等待连接等待发送文件读取数据写入文件并且保存等待连接'''import socketimport threadingimport timeimport structdef function(newsock, address):    FILEINFO_SIZE = struct.calcsize('128sI')    '''定义文件信息（包含文件名和文件大小）大小。128s代表128个char[]（文件名），I代表一个integer or long（文件大小）'''    while 1:             try:            fhead = newsock.recv(FILEINFO_SIZE)            filename, filesize = struct.unpack('128sI', fhead)            '''把接收到的数据库进行解包，按照打包规则128sI'''            print "address is: ",address            print filename, len(filename),type(filename)            print filesize            filename = 'new_'+filename.strip('\00')#命名新文件new_传送的文件            fp = open(filename,'wb')#新建文件，并且准备写入            restsize = filesize            print "recving..."            while 1:                if restsize > 1024:#如果剩余数据包大于1024，就去1024的数据包                    filedata = newsock.recv(1024)                else:                    filedata = newsock.recv(restsize)                    fp.write(filedata)                    break                if not filedata:                    break                fp.write(filedata)                restsize = testsize - len(filedata)#计算剩余数据包大小                if restsize <= 0:                    break            fp.close()            print "recv succeeded !!File named:",filename        except:            print "he socket partner maybe closed"            newsock.close()            breaksock=socket.socket(socket.AF_INET, socket.SOCK_STREAM)#创建tcp连接sock.bind(('127.0.0.1',8887))#定于端口和ipsock.listen(5)#监听while True:    newsock, address = sock.accept()    print "accept another connection"    tmpThread = threading.Thread(target=function,args=(newsock,address)) #如果接收到文件，创建线程    tmpThread.start()#执行线程print 'end'

客户端： 

#coding=gbk'''输入文件名，并且上传'''import socketimport timeimport structimport ossock = socket.socket(socket.AF_INET,socket.SOCK_STREAM)sock.settimeout(1)e=0try:    sock.connect(('127.0.0.1',8887))    print 'connect...'except socket.timeout,e:    print 'timeout',eexcept socket.error,e:    print 'error',eexcept e:    print 'any',eif not e:    while (1):        filename = raw_input('input your filename------->')#输入文件名        FILEINFO_SIZE = struct.calcsize('128sI')#编码格式大小        fhead = struct.pack('128sI',filename,os.stat(filename).st_size)#按照规则进行打包        sock.send(fhead)#发送文件基本信息数据        fp = open(filename,'rb')        while 1:        #发送文件            filedata = fp.read(1024)            if not filedata:                break            sock.send(filedata)        print "sending over..."        fp.close()