python ftp上傳文件代碼

from ftplib import FTP

if __name__=='__main__':
    ftp=FTP()
    ftp.connect('192.168.4.152','21')
    ftp.login('ftpuser','ftpuser')
    print ftp.getwelcome()
    print ftp.dir()
    buffersize=1024
    filename='1.txt'
    file_handler=open(filename,'rb')
    ftp.storbinary('STOR 1.txt',file_handler,buffersize)
    print 'upload completely'
    file_handler.close()
    ftp.quit()