python xml解析中文乱码怎么办

xml.parsers.expat.ExpatError: not well-formed (invalid token): line 13, column 31

cmd = "iconv " + filename + " -t \"utf-8\" >utf.tmp"

os.system(cmd)

utf_filename = "utf.tmp"

f = open(utf_filename)

data = f.read()

f.close()

os.system("rm -f utf.tmp")

#----delete the encode type in  xml file-----

#result = re.sub(regex, newstring, subject)

data = data.replace('encoding="GB2312"', '')

data = data.replace('encoding="gb2312"', '')

#self.dom.unlink

self.dom = xml.dom.minidom.parseString( data )