[python] fix lint
[python] fix lint

LinkHS/incubator-mxnet,leezu/mxnet,ykim362/mxnet,mbaijal/incubator-mxnet,rahul003/mxnet,likelyzhao/mxnet,kkk669/mxnet,antoan2/incubator-mxnet,larroy/mxnet,yuruofeifei/mxnet,ykim362/mxnet,hesseltuinhof/mxnet,luoyetx/mxnet,vikingMei/mxnet,formath/mxnet,nicklhy/mxnet,navrasio/mxnet,luoyetx/mxnet,ZihengJiang/mxnet,tlby/mxnet,TuSimple/mxnet,crazy-cat/incubator-mxnet,apaleyes/mxnet,hotpxl/mxnet,ShownX/incubator-mxnet,yajiedesign/mxnet,apaleyes/mxnet,reminisce/mxnet,coder-james/mxnet,jamesliu/mxnet,formath/mxnet,pluskid/mxnet,zhreshold/mxnet,TuSimple/mxnet,precedenceguo/mxnet,arikpoz/mxnet,smolix/incubator-mxnet,indhub/mxnet,sergeykolychev/mxnet,Guneet-Dhillon/mxnet,lxn2/mxnet,jamesliu/mxnet,ykim362/mxnet,eric-haibin-lin/mxnet,smolix/incubator-mxnet,ForkedReposBak/mxnet,piiswrong/mxnet,DR08/mxnet,yajiedesign/mxnet,jermainewang/mxnet,jermainewang/mxnet,solin319/incubator-mxnet,hpi-xnor/BMXNet,leezu/mxnet,eric-haibin-lin/mxnet,yajiedesign/mxnet,yuruofeifei/mxnet,mbaijal/incubator-mxnet,gautamkmr/incubator-mxnet,jermainewang/mxnet,szha/mxnet,ForkedReposBak/mxnet,yuruofeifei/mxnet,CodingCat/mxnet,eric-haibin-lin/mxnet,apaleyes/mxnet,Prasad9/incubator-mxnet,gautamkmr/incubator-mxnet,danithaca/mxnet,ptrendx/mxnet,ptrendx/mxnet,yuruofeifei/mxnet,arikpoz/mxnet,wangyum/mxnet,rishita/mxnet,tlby/mxnet,yuruofeifei/mxnet,saurabh3949/mxnet,vikingMei/mxnet,saurabh3949/mxnet,arank/mxnet,tornadomeet/mxnet,kevinthesun/mxnet,formath/mxnet,xcgoner/dist-mxnet,Mega-DatA-Lab/mxnet,fullfanta/mxnet,jermainewang/mxnet,ForkedReposBak/mxnet,madjam/mxnet,kkk669/mxnet,xcgoner/dist-mxnet,larroy/mxnet,coder-james/mxnet,Mega-DatA-Lab/mxnet,kkk669/mxnet,likelyzhao/mxnet,ShownX/incubator-mxnet,Guneet-Dhillon/mxnet,crazy-cat/incubator-mxnet,sxjscience/mxnet,lxn2/mxnet,Ldpe2G/mxnet,danithaca/mxnet,ykim362/mxnet,reminisce/mxnet,crazy-cat/incubator-mxnet,arank/mxnet,DR08/mxnet,nicklhy/mxnet,xcgoner/dist-mxnet,mbaijal/incubator-mxnet,DickJC123/mxnet,dmlc/mxnet,smolix/incubator-mxnet,wangyum/mxnet,xcgoner/dist-mxnet,Ldpe2G/mxnet,rahul003/mxnet,indhub/mxnet,formath/mxnet,jamesliu/mxnet,fullfanta/mxnet,ptrendx/mxnet,szha/mxnet,ykim362/mxnet,gautamkmr/incubator-mxnet,TuSimple/mxnet,antoan2/incubator-mxnet,DickJC123/mxnet,Guneet-Dhillon/mxnet,kkk669/mxnet,navrasio/mxnet,sergeykolychev/mxnet,vikingMei/mxnet,stefanhenneking/mxnet,ptrendx/mxnet,dmlc/mxnet,crazy-cat/incubator-mxnet,antoan2/incubator-mxnet,vikingMei/mxnet,wangyum/mxnet,arank/mxnet,coder-james/mxnet,yuruofeifei/mxnet,stefanhenneking/mxnet,rishita/mxnet,arikpoz/mxnet,leezu/mxnet,lxn2/mxnet,CodingCat/mxnet,DR08/mxnet,Prasad9/incubator-mxnet,navrasio/mxnet,sergeykolychev/mxnet,hpi-xnor/BMXNet,antoan2/incubator-mxnet,kevinthesun/mxnet,nicklhy/mxnet,danithaca/mxnet,mbaijal/incubator-mxnet,mbaijal/incubator-mxnet,piiswrong/mxnet,ykim362/mxnet,ZihengJiang/mxnet,zhreshold/mxnet,wangyum/mxnet,apaleyes/mxnet,ShownX/incubator-mxnet,reminisce/mxnet,sxjscience/mxnet,xcgoner/dist-mxnet,dmlc/mxnet,thirdwing/mxnet,larroy/mxnet,crazy-cat/incubator-mxnet,Prasad9/incubator-mxnet,tlby/mxnet,formath/mxnet,leezu/mxnet,precedenceguo/mxnet,jermainewang/mxnet,CodingCat/mxnet,arikpoz/mxnet,likelyzhao/mxnet,wangyum/mxnet,rahul003/mxnet,CodingCat/mxnet,likelyzhao/mxnet,larroy/mxnet,smolix/incubator-mxnet,smolix/incubator-mxnet,tlby/mxnet,luoyetx/mxnet,piiswrong/mxnet,rahul003/mxnet,Prasad9/incubator-mxnet,lxn2/mxnet,solin319/incubator-mxnet,madjam/mxnet,jennyzhang0215/incubator-mxnet,piiswrong/mxnet,Guneet-Dhillon/mxnet,thirdwing/mxnet,navrasio/mxnet,Ldpe2G/mxnet,Northrend/mxnet,madjam/mxnet,madjam/mxnet,hotpxl/mxnet,reminisce/mxnet,Ldpe2G/mxnet,tornadomeet/mxnet,danithaca/mxnet,rishita/mxnet,solin319/incubator-mxnet,madjam/mxnet,jamesliu/mxnet,lxn2/mxnet,dmlc/mxnet,xcgoner/dist-mxnet,navrasio/mxnet,ykim362/mxnet,eric-haibin-lin/mxnet,thirdwing/mxnet,danithaca/mxnet,jiajiechen/mxnet,rishita/mxnet,yajiedesign/mxnet,apache/incubator-mxnet,vikingMei/mxnet,apaleyes/mxnet,danithaca/mxnet,indhub/mxnet,LinkHS/incubator-mxnet,yajiedesign/mxnet,ptrendx/mxnet,saurabh3949/mxnet,gautamkmr/incubator-mxnet,DR08/mxnet,danithaca/mxnet,tornadomeet/mxnet,smolix/incubator-mxnet,LinkHS/incubator-mxnet,pluskid/mxnet,dmlc/mxnet,Northrend/mxnet,formath/mxnet,crazy-cat/incubator-mxnet,jiajiechen/mxnet,jennyzhang0215/incubator-mxnet,arikpoz/mxnet,saurabh3949/mxnet,reminisce/mxnet,hesseltuinhof/mxnet,coder-james/mxnet,CodingCat/mxnet,ForkedReposBak/mxnet,apache/incubator-mxnet,navrasio/mxnet,pluskid/mxnet,apaleyes/mxnet,yajiedesign/mxnet,coder-james/mxnet,Guneet-Dhillon/mxnet,sergeykolychev/mxnet,jiajiechen/mxnet,hpi-xnor/BMXNet,hesseltuinhof/mxnet,ZihengJiang/mxnet,fullfanta/mxnet,TuSimple/mxnet,jennyzhang0215/incubator-mxnet,stefanhenneking/mxnet,precedenceguo/mxnet,kkk669/mxnet,likelyzhao/mxnet,rahul003/mxnet,rishita/mxnet,precedenceguo/mxnet,pluskid/mxnet,Guneet-Dhillon/mxnet,Ldpe2G/mxnet,dmlc/mxnet,Prasad9/incubator-mxnet,CodingCat/mxnet,jamesliu/mxnet,saurabh3949/mxnet,arikpoz/mxnet,kevinthesun/mxnet,xcgoner/dist-mxnet,fullfanta/mxnet,hesseltuinhof/mxnet,ForkedReposBak/mxnet,gautamkmr/incubator-mxnet,weleen/mxnet,reminisce/mxnet,ptrendx/mxnet,thirdwing/mxnet,leezu/mxnet,arank/mxnet,gautamkmr/incubator-mxnet,solin319/incubator-mxnet,sxjscience/mxnet,LinkHS/incubator-mxnet,Prasad9/incubator-mxnet,hesseltuinhof/mxnet,saurabh3949/mxnet,apaleyes/mxnet,crazy-cat/incubator-mxnet,larroy/mxnet,LinkHS/incubator-mxnet,coder-james/mxnet,rishita/mxnet,thirdwing/mxnet,yajiedesign/mxnet,zhreshold/mxnet,reminisce/mxnet,fullfanta/mxnet,kevinthesun/mxnet,hotpxl/mxnet,weleen/mxnet,antoan2/incubator-mxnet,zhreshold/mxnet,indhub/mxnet,reminisce/mxnet,ZihengJiang/mxnet,hotpxl/mxnet,DR08/mxnet,DR08/mxnet,wangyum/mxnet,Northrend/mxnet,rahul003/mxnet,precedenceguo/mxnet,precedenceguo/mxnet,xcgoner/dist-mxnet,stefanhenneking/mxnet,CodingCat/mxnet,Ldpe2G/mxnet,vikingMei/mxnet,kkk669/mxnet,saurabh3949/mxnet,kevinthesun/mxnet,arank/mxnet,LinkHS/incubator-mxnet,ForkedReposBak/mxnet,madjam/mxnet,stefanhenneking/mxnet,szha/mxnet,stefanhenneking/mxnet,yuruofeifei/mxnet,LinkHS/incubator-mxnet,indhub/mxnet,vikingMei/mxnet,weleen/mxnet,kevinthesun/mxnet,TuSimple/mxnet,navrasio/mxnet,luoyetx/mxnet,kevinthesun/mxnet,tornadomeet/mxnet,nicklhy/mxnet,ptrendx/mxnet,dmlc/mxnet,sergeykolychev/mxnet,leezu/mxnet,jennyzhang0215/incubator-mxnet,crazy-cat/incubator-mxnet,jiajiechen/mxnet,sergeykolychev/mxnet,luoyetx/mxnet,likelyzhao/mxnet,indhub/mxnet,wangyum/mxnet,lxn2/mxnet,coder-james/mxnet,piiswrong/mxnet,rishita/mxnet,madjam/mxnet,zhreshold/mxnet,kevinthesun/mxnet,jermainewang/mxnet,nicklhy/mxnet,sxjscience/mxnet,thirdwing/mxnet,ZihengJiang/mxnet,EvanzzzZ/mxnet,apaleyes/mxnet,yajiedesign/mxnet,eric-haibin-lin/mxnet,rishita/mxnet,tornadomeet/mxnet,coder-james/mxnet,EvanzzzZ/mxnet,mbaijal/incubator-mxnet,gautamkmr/incubator-mxnet,Guneet-Dhillon/mxnet,wangyum/mxnet,sergeykolychev/mxnet,hpi-xnor/BMXNet,kkk669/mxnet,Guneet-Dhillon/mxnet,DR08/mxnet,larroy/mxnet,yuruofeifei/mxnet,arikpoz/mxnet,hotpxl/mxnet,madjam/mxnet,stefanhenneking/mxnet,Mega-DatA-Lab/mxnet,larroy/mxnet,dmlc/mxnet,formath/mxnet,TuSimple/mxnet,indhub/mxnet,rishita/mxnet,arank/mxnet,Northrend/mxnet,ptrendx/mxnet,EvanzzzZ/mxnet,piiswrong/mxnet,antoan2/incubator-mxnet,hpi-xnor/BMXNet,eric-haibin-lin/mxnet,hpi-xnor/BMXNet,Mega-DatA-Lab/mxnet,Mega-DatA-Lab/mxnet,hotpxl/mxnet,precedenceguo/mxnet,Northrend/mxnet,antoan2/incubator-mxnet,LinkHS/incubator-mxnet,tlby/mxnet,hesseltuinhof/mxnet,lxn2/mxnet,weleen/mxnet,ykim362/mxnet,jamesliu/mxnet,fullfanta/mxnet,ZihengJiang/mxnet,zhreshold/mxnet,danithaca/mxnet,ZihengJiang/mxnet,tornadomeet/mxnet,jiajiechen/mxnet,arank/mxnet,kkk669/mxnet,lxn2/mxnet,solin319/incubator-mxnet,crazy-cat/incubator-mxnet,likelyzhao/mxnet,jennyzhang0215/incubator-mxnet,DR08/mxnet,ShownX/incubator-mxnet,nicklhy/mxnet,Prasad9/incubator-mxnet,zhreshold/mxnet,Mega-DatA-Lab/mxnet,DickJC123/mxnet,Northrend/mxnet,hesseltuinhof/mxnet,EvanzzzZ/mxnet,pluskid/mxnet,sxjscience/mxnet,ShownX/incubator-mxnet,jennyzhang0215/incubator-mxnet,Northrend/mxnet,tornadomeet/mxnet,apache/incubator-mxnet,DR08/mxnet,tlby/mxnet,solin319/incubator-mxnet,antoan2/incubator-mxnet,eric-haibin-lin/mxnet,likelyzhao/mxnet,dmlc/mxnet,szha/mxnet,luoyetx/mxnet,arank/mxnet,jermainewang/mxnet,yajiedesign/mxnet,fullfanta/mxnet,stefanhenneking/mxnet,eric-haibin-lin/mxnet,luoyetx/mxnet,nicklhy/mxnet,szha/mxnet,hotpxl/mxnet,Ldpe2G/mxnet,thirdwing/mxnet,rahul003/mxnet,Prasad9/incubator-mxnet,pluskid/mxnet,jennyzhang0215/incubator-mxnet,leezu/mxnet,kkk669/mxnet,weleen/mxnet,mbaijal/incubator-mxnet,hpi-xnor/BMXNet,apaleyes/mxnet,danithaca/mxnet,EvanzzzZ/mxnet,TuSimple/mxnet,rahul003/mxnet,arikpoz/mxnet,smolix/incubator-mxnet,eric-haibin-lin/mxnet,tornadomeet/mxnet,tlby/mxnet,jiajiechen/mxnet,Mega-DatA-Lab/mxnet,lxn2/mxnet,thirdwing/mxnet,sxjscience/mxnet,vikingMei/mxnet,weleen/mxnet,szha/mxnet,hpi-xnor/BMXNet,jiajiechen/mxnet,pluskid/mxnet,xcgoner/dist-mxnet,EvanzzzZ/mxnet,fullfanta/mxnet,CodingCat/mxnet,sxjscience/mxnet,precedenceguo/mxnet,madjam/mxnet,mbaijal/incubator-mxnet,navrasio/mxnet,thirdwing/mxnet,leezu/mxnet,weleen/mxnet,Guneet-Dhillon/mxnet,wangyum/mxnet,solin319/incubator-mxnet,weleen/mxnet,reminisce/mxnet,DickJC123/mxnet,hesseltuinhof/mxnet,hpi-xnor/BMXNet,sxjscience/mxnet,likelyzhao/mxnet,formath/mxnet,sergeykolychev/mxnet,EvanzzzZ/mxnet,ShownX/incubator-mxnet,smolix/incubator-mxnet,tornadomeet/mxnet,ykim362/mxnet,tlby/mxnet,Ldpe2G/mxnet,EvanzzzZ/mxnet,ForkedReposBak/mxnet,jennyzhang0215/incubator-mxnet,solin319/incubator-mxnet,szha/mxnet,larroy/mxnet,tlby/mxnet,jamesliu/mxnet,nicklhy/mxnet,pluskid/mxnet,szha/mxnet,Prasad9/incubator-mxnet,larroy/mxnet,arank/mxnet,arikpoz/mxnet,jiajiechen/mxnet,indhub/mxnet,apache/incubator-mxnet,stefanhenneking/mxnet,jamesliu/mxnet,mbaijal/incubator-mxnet,Ldpe2G/mxnet,ForkedReposBak/mxnet,luoyetx/mxnet,indhub/mxnet,TuSimple/mxnet,rahul003/mxnet,antoan2/incubator-mxnet,gautamkmr/incubator-mxnet,pluskid/mxnet,ShownX/incubator-mxnet,weleen/mxnet,vikingMei/mxnet,jermainewang/mxnet,saurabh3949/mxnet,zhreshold/mxnet,fullfanta/mxnet,Northrend/mxnet,coder-james/mxnet,hesseltuinhof/mxnet,formath/mxnet,luoyetx/mxnet,TuSimple/mxnet,leezu/mxnet,piiswrong/mxnet,solin319/incubator-mxnet,hotpxl/mxnet,ZihengJiang/mxnet,ptrendx/mxnet,hotpxl/mxnet,zhreshold/mxnet,gautamkmr/incubator-mxnet,Northrend/mxnet,jermainewang/mxnet,precedenceguo/mxnet,nicklhy/mxnet,jiajiechen/mxnet,piiswrong/mxnet,navrasio/mxnet,sxjscience/mxnet,TuSimple/mxnet,saurabh3949/mxnet,EvanzzzZ/mxnet,tlby/mxnet,piiswrong/mxnet,ZihengJiang/mxnet,LinkHS/incubator-mxnet,ShownX/incubator-mxnet,ptrendx/mxnet,jennyzhang0215/incubator-mxnet,kevinthesun/mxnet,Mega-DatA-Lab/mxnet,yuruofeifei/mxnet,reminisce/mxnet,Mega-DatA-Lab/mxnet,smolix/incubator-mxnet,sergeykolychev/mxnet,szha/mxnet,ShownX/incubator-mxnet,jamesliu/mxnet,CodingCat/mxnet,ForkedReposBak/mxnet