python 处理xml 遇到特殊符号解析错误的情况

global:[2017-06-05 10:27:48.662313] [DEBUG] 输出fmsg_content <msg fromusername="li2571" encryptusername="v1_d6685823c361fcaabb8f8bdde7b1c69831047cc4012ca73af16a452688fcb1ec@stranger" fromnickname="돌아갈 수 있는 지난จุ๊บðŸ’" content="我是" fullpy="?????????????" shortpy="?????????????" imagestatus="3" scene="3" country="CN" province="Hubei" city="Jingzhou" sign="〢铷裹爱,请深爱．、．|‖|‖▍．＊" percard="1" sex="2" alias="LiLizouli713" weibo="" weibonickname="" albumflag="0" albumstyle="0" albumbgimgid="" snsflag="17" snsbgimgid="https://szmmsns.qpic.cn/mmsns/aicQlel8roa2oJPnj8q8Gf1ibVnDX1x5HD23xde644eAP8x0E5qtm69hGQ5e6GOquAkiaku39cAte8/0" snsbgobjectid="12548372440867024976" mhash="3247e9c6ea7921d63e672c5ede4e206e" mfullhash="3247e9c6ea7921d63e672c5ede4e206e" bigheadimgurl="https://wx.qlogo.cn/mmhead/ver_1/kjW4HogEYibLpboXT4mUDTUV9BhRnXAt0C4DW7JvQUY3Tia8yF8ibBBGF7wRv9vaaFdFcLne8GybjLlsVaTrrKNrP2Zjjlxtp9vGKEdcgCiaB44/0" smallheadimgurl="https://wx.qlogo.cn/mmhead/ver_1/kjW4HogEYibLpboXT4mUDTUV9BhRnXAt0C4DW7JvQUY3Tia8yF8ibBBGF7wRv9vaaFdFcLne8GybjLlsVaTrrKNrP2Zjjlxtp9vGKEdcgCiaB44/96" ticket="v2_8655444fac8ef7e3a277aeee973c6038a97e83593c53559e1d362e7488fda8c65724aa1310015415fd681faa284b5b18@stranger" opcode="2" googlecontact="" qrticket="" chatroomusername="" sourceusername="" sourcenickname=""><brandlist count="0" ver="652744432"></brandlist></msg>global:[2017-06-05 10:27:48.662313] [DEBUG] 输出f