Added parentheses for print statements
Added parentheses for print statements

I added parentheses for the `print(kv_type)` statements to fix a failing test case when running the tests under Python 3.
dmlc/mxnet,wangyum/mxnet,lxn2/mxnet,jermainewang/mxnet,Northrend/mxnet,solin319/incubator-mxnet,yuruofeifei/mxnet,wangyum/mxnet,hpi-xnor/BMXNet,zhreshold/mxnet,crazy-cat/incubator-mxnet,EvanzzzZ/mxnet,piiswrong/mxnet,madjam/mxnet,jermainewang/mxnet,luoyetx/mxnet,reminisce/mxnet,coder-james/mxnet,EvanzzzZ/mxnet,arikpoz/mxnet,indhub/mxnet,Guneet-Dhillon/mxnet,luoyetx/mxnet,navrasio/mxnet,tornadomeet/mxnet,kevinthesun/mxnet,xcgoner/dist-mxnet,eric-haibin-lin/mxnet,hesseltuinhof/mxnet,kkk669/mxnet,kkk669/mxnet,fullfanta/mxnet,ForkedReposBak/mxnet,Mega-DatA-Lab/mxnet,crazy-cat/incubator-mxnet,indhub/mxnet,weleen/mxnet,szha/mxnet,pluskid/mxnet,tlby/mxnet,smolix/incubator-mxnet,mbaijal/incubator-mxnet,apaleyes/mxnet,Guneet-Dhillon/mxnet,ShownX/incubator-mxnet,nicklhy/mxnet,eric-haibin-lin/mxnet,DickJC123/mxnet,xcgoner/dist-mxnet,ZihengJiang/mxnet,ykim362/mxnet,yajiedesign/mxnet,EvanzzzZ/mxnet,ptrendx/mxnet,hpi-xnor/BMXNet,ykim362/mxnet,kkk669/mxnet,Guneet-Dhillon/mxnet,LinkHS/incubator-mxnet,szha/mxnet,nicklhy/mxnet,madjam/mxnet,leezu/mxnet,tlby/mxnet,szha/mxnet,thirdwing/mxnet,coder-james/mxnet,pluskid/mxnet,szha/mxnet,navrasio/mxnet,vikingMei/mxnet,Mega-DatA-Lab/mxnet,yuruofeifei/mxnet,rishita/mxnet,gautamkmr/incubator-mxnet,rahul003/mxnet,tlby/mxnet,stefanhenneking/mxnet,Northrend/mxnet,ZihengJiang/mxnet,szha/mxnet,LinkHS/incubator-mxnet,luoyetx/mxnet,sxjscience/mxnet,Guneet-Dhillon/mxnet,leezu/mxnet,yuruofeifei/mxnet,leezu/mxnet,sxjscience/mxnet,jennyzhang0215/incubator-mxnet,rahul003/mxnet,DR08/mxnet,jiajiechen/mxnet,yuruofeifei/mxnet,reminisce/mxnet,danithaca/mxnet,lxn2/mxnet,rahul003/mxnet,stefanhenneking/mxnet,fullfanta/mxnet,piiswrong/mxnet,Prasad9/incubator-mxnet,eric-haibin-lin/mxnet,jamesliu/mxnet,sergeykolychev/mxnet,navrasio/mxnet,mbaijal/incubator-mxnet,nicklhy/mxnet,sxjscience/mxnet,jamesliu/mxnet,crazy-cat/incubator-mxnet,leezu/mxnet,antoan2/incubator-mxnet,antoan2/incubator-mxnet,solin319/incubator-mxnet,szha/mxnet,stefanhenneking/mxnet,tlby/mxnet,ptrendx/mxnet,thirdwing/mxnet,danithaca/mxnet,hpi-xnor/BMXNet,kkk669/mxnet,luoyetx/mxnet,ptrendx/mxnet,yajiedesign/mxnet,piiswrong/mxnet,precedenceguo/mxnet,reminisce/mxnet,tlby/mxnet,arank/mxnet,rahul003/mxnet,arank/mxnet,reminisce/mxnet,LinkHS/incubator-mxnet,jennyzhang0215/incubator-mxnet,eric-haibin-lin/mxnet,saurabh3949/mxnet,coder-james/mxnet,rishita/mxnet,piiswrong/mxnet,Northrend/mxnet,LinkHS/incubator-mxnet,hesseltuinhof/mxnet,hpi-xnor/BMXNet,kevinthesun/mxnet,sergeykolychev/mxnet,TuSimple/mxnet,yajiedesign/mxnet,leezu/mxnet,jiajiechen/mxnet,jermainewang/mxnet,CodingCat/mxnet,xcgoner/dist-mxnet,rahul003/mxnet,Ldpe2G/mxnet,reminisce/mxnet,smolix/incubator-mxnet,saurabh3949/mxnet,jiajiechen/mxnet,TuSimple/mxnet,lxn2/mxnet,Northrend/mxnet,likelyzhao/mxnet,nicklhy/mxnet,wangyum/mxnet,kevinthesun/mxnet,formath/mxnet,vikingMei/mxnet,lxn2/mxnet,precedenceguo/mxnet,piiswrong/mxnet,arikpoz/mxnet,xcgoner/dist-mxnet,ShownX/incubator-mxnet,sxjscience/mxnet,Prasad9/incubator-mxnet,reminisce/mxnet,saurabh3949/mxnet,hotpxl/mxnet,jennyzhang0215/incubator-mxnet,rishita/mxnet,DR08/mxnet,saurabh3949/mxnet,luoyetx/mxnet,ykim362/mxnet,stefanhenneking/mxnet,hotpxl/mxnet,DR08/mxnet,Mega-DatA-Lab/mxnet,Ldpe2G/mxnet,larroy/mxnet,navrasio/mxnet,piiswrong/mxnet,Prasad9/incubator-mxnet,formath/mxnet,Mega-DatA-Lab/mxnet,ZihengJiang/mxnet,ShownX/incubator-mxnet,gautamkmr/incubator-mxnet,solin319/incubator-mxnet,arank/mxnet,rahul003/mxnet,ShownX/incubator-mxnet,gautamkmr/incubator-mxnet,nicklhy/mxnet,larroy/mxnet,luoyetx/mxnet,indhub/mxnet,CodingCat/mxnet,Mega-DatA-Lab/mxnet,madjam/mxnet,Prasad9/incubator-mxnet,xcgoner/dist-mxnet,TuSimple/mxnet,wangyum/mxnet,likelyzhao/mxnet,ykim362/mxnet,lxn2/mxnet,solin319/incubator-mxnet,mbaijal/incubator-mxnet,antoan2/incubator-mxnet,crazy-cat/incubator-mxnet,indhub/mxnet,saurabh3949/mxnet,rahul003/mxnet,piiswrong/mxnet,antoan2/incubator-mxnet,pluskid/mxnet,arikpoz/mxnet,zhreshold/mxnet,navrasio/mxnet,madjam/mxnet,ForkedReposBak/mxnet,ZihengJiang/mxnet,sxjscience/mxnet,tornadomeet/mxnet,sxjscience/mxnet,ptrendx/mxnet,jamesliu/mxnet,Northrend/mxnet,stefanhenneking/mxnet,likelyzhao/mxnet,ptrendx/mxnet,LinkHS/incubator-mxnet,arikpoz/mxnet,ptrendx/mxnet,ptrendx/mxnet,ForkedReposBak/mxnet,rishita/mxnet,likelyzhao/mxnet,apaleyes/mxnet,gautamkmr/incubator-mxnet,ShownX/incubator-mxnet,tlby/mxnet,larroy/mxnet,ykim362/mxnet,rishita/mxnet,yajiedesign/mxnet,likelyzhao/mxnet,arikpoz/mxnet,thirdwing/mxnet,antoan2/incubator-mxnet,szha/mxnet,gautamkmr/incubator-mxnet,arank/mxnet,LinkHS/incubator-mxnet,sxjscience/mxnet,Prasad9/incubator-mxnet,antoan2/incubator-mxnet,Guneet-Dhillon/mxnet,pluskid/mxnet,formath/mxnet,Mega-DatA-Lab/mxnet,likelyzhao/mxnet,crazy-cat/incubator-mxnet,hotpxl/mxnet,formath/mxnet,precedenceguo/mxnet,hesseltuinhof/mxnet,jamesliu/mxnet,solin319/incubator-mxnet,apaleyes/mxnet,danithaca/mxnet,thirdwing/mxnet,yajiedesign/mxnet,jiajiechen/mxnet,xcgoner/dist-mxnet,yuruofeifei/mxnet,dmlc/mxnet,madjam/mxnet,jamesliu/mxnet,weleen/mxnet,mbaijal/incubator-mxnet,jiajiechen/mxnet,coder-james/mxnet,antoan2/incubator-mxnet,stefanhenneking/mxnet,sxjscience/mxnet,LinkHS/incubator-mxnet,Guneet-Dhillon/mxnet,DickJC123/mxnet,madjam/mxnet,ZihengJiang/mxnet,kkk669/mxnet,TuSimple/mxnet,antoan2/incubator-mxnet,sergeykolychev/mxnet,coder-james/mxnet,dmlc/mxnet,tornadomeet/mxnet,precedenceguo/mxnet,jermainewang/mxnet,reminisce/mxnet,rahul003/mxnet,ForkedReposBak/mxnet,tornadomeet/mxnet,yajiedesign/mxnet,ForkedReposBak/mxnet,kevinthesun/mxnet,likelyzhao/mxnet,tornadomeet/mxnet,jamesliu/mxnet,DR08/mxnet,Northrend/mxnet,Mega-DatA-Lab/mxnet,danithaca/mxnet,kevinthesun/mxnet,TuSimple/mxnet,hotpxl/mxnet,arank/mxnet,CodingCat/mxnet,ShownX/incubator-mxnet,apache/incubator-mxnet,lxn2/mxnet,eric-haibin-lin/mxnet,larroy/mxnet,DR08/mxnet,solin319/incubator-mxnet,reminisce/mxnet,coder-james/mxnet,Mega-DatA-Lab/mxnet,formath/mxnet,jermainewang/mxnet,rishita/mxnet,lxn2/mxnet,jamesliu/mxnet,arank/mxnet,indhub/mxnet,Prasad9/incubator-mxnet,jennyzhang0215/incubator-mxnet,vikingMei/mxnet,weleen/mxnet,formath/mxnet,kevinthesun/mxnet,jermainewang/mxnet,dmlc/mxnet,szha/mxnet,mbaijal/incubator-mxnet,fullfanta/mxnet,kkk669/mxnet,hpi-xnor/BMXNet,ptrendx/mxnet,ForkedReposBak/mxnet,tlby/mxnet,ykim362/mxnet,reminisce/mxnet,Ldpe2G/mxnet,CodingCat/mxnet,crazy-cat/incubator-mxnet,kkk669/mxnet,luoyetx/mxnet,fullfanta/mxnet,EvanzzzZ/mxnet,yajiedesign/mxnet,arank/mxnet,reminisce/mxnet,dmlc/mxnet,smolix/incubator-mxnet,smolix/incubator-mxnet,fullfanta/mxnet,likelyzhao/mxnet,solin319/incubator-mxnet,arikpoz/mxnet,ptrendx/mxnet,fullfanta/mxnet,EvanzzzZ/mxnet,danithaca/mxnet,zhreshold/mxnet,larroy/mxnet,LinkHS/incubator-mxnet,hotpxl/mxnet,gautamkmr/incubator-mxnet,tlby/mxnet,jiajiechen/mxnet,arikpoz/mxnet,ptrendx/mxnet,CodingCat/mxnet,eric-haibin-lin/mxnet,larroy/mxnet,Prasad9/incubator-mxnet,jiajiechen/mxnet,CodingCat/mxnet,antoan2/incubator-mxnet,mbaijal/incubator-mxnet,danithaca/mxnet,solin319/incubator-mxnet,jermainewang/mxnet,lxn2/mxnet,Prasad9/incubator-mxnet,piiswrong/mxnet,danithaca/mxnet,coder-james/mxnet,jamesliu/mxnet,mbaijal/incubator-mxnet,saurabh3949/mxnet,thirdwing/mxnet,smolix/incubator-mxnet,precedenceguo/mxnet,ShownX/incubator-mxnet,vikingMei/mxnet,apaleyes/mxnet,saurabh3949/mxnet,eric-haibin-lin/mxnet,rishita/mxnet,Ldpe2G/mxnet,vikingMei/mxnet,hesseltuinhof/mxnet,formath/mxnet,jennyzhang0215/incubator-mxnet,smolix/incubator-mxnet,ShownX/incubator-mxnet,nicklhy/mxnet,Northrend/mxnet,jennyzhang0215/incubator-mxnet,weleen/mxnet,TuSimple/mxnet,smolix/incubator-mxnet,eric-haibin-lin/mxnet,wangyum/mxnet,arikpoz/mxnet,ZihengJiang/mxnet,EvanzzzZ/mxnet,zhreshold/mxnet,EvanzzzZ/mxnet,piiswrong/mxnet,indhub/mxnet,sergeykolychev/mxnet,sergeykolychev/mxnet,hpi-xnor/BMXNet,hesseltuinhof/mxnet,smolix/incubator-mxnet,larroy/mxnet,DR08/mxnet,DickJC123/mxnet,apache/incubator-mxnet,thirdwing/mxnet,kevinthesun/mxnet,weleen/mxnet,jiajiechen/mxnet,pluskid/mxnet,wangyum/mxnet,ForkedReposBak/mxnet,rishita/mxnet,hotpxl/mxnet,stefanhenneking/mxnet,pluskid/mxnet,precedenceguo/mxnet,sergeykolychev/mxnet,larroy/mxnet,fullfanta/mxnet,DR08/mxnet,dmlc/mxnet,Northrend/mxnet,CodingCat/mxnet,DR08/mxnet,precedenceguo/mxnet,gautamkmr/incubator-mxnet,rahul003/mxnet,yuruofeifei/mxnet,TuSimple/mxnet,apaleyes/mxnet,yuruofeifei/mxnet,arank/mxnet,apaleyes/mxnet,thirdwing/mxnet,saurabh3949/mxnet,larroy/mxnet,apaleyes/mxnet,jermainewang/mxnet,indhub/mxnet,Ldpe2G/mxnet,nicklhy/mxnet,tornadomeet/mxnet,weleen/mxnet,arank/mxnet,stefanhenneking/mxnet,madjam/mxnet,nicklhy/mxnet,Ldpe2G/mxnet,EvanzzzZ/mxnet,wangyum/mxnet,Prasad9/incubator-mxnet,formath/mxnet,hpi-xnor/BMXNet,CodingCat/mxnet,lxn2/mxnet,tornadomeet/mxnet,hpi-xnor/BMXNet,Guneet-Dhillon/mxnet,CodingCat/mxnet,kevinthesun/mxnet,formath/mxnet,wangyum/mxnet,hotpxl/mxnet,leezu/mxnet,ZihengJiang/mxnet,tlby/mxnet,sergeykolychev/mxnet,fullfanta/mxnet,szha/mxnet,ZihengJiang/mxnet,pluskid/mxnet,crazy-cat/incubator-mxnet,gautamkmr/incubator-mxnet,yuruofeifei/mxnet,mbaijal/incubator-mxnet,tornadomeet/mxnet,tornadomeet/mxnet,eric-haibin-lin/mxnet,mbaijal/incubator-mxnet,weleen/mxnet,rishita/mxnet,likelyzhao/mxnet,ZihengJiang/mxnet,TuSimple/mxnet,Mega-DatA-Lab/mxnet,luoyetx/mxnet,weleen/mxnet,nicklhy/mxnet,precedenceguo/mxnet,jamesliu/mxnet,Ldpe2G/mxnet,zhreshold/mxnet,vikingMei/mxnet,jermainewang/mxnet,hesseltuinhof/mxnet,solin319/incubator-mxnet,stefanhenneking/mxnet,leezu/mxnet,xcgoner/dist-mxnet,Guneet-Dhillon/mxnet,xcgoner/dist-mxnet,saurabh3949/mxnet,thirdwing/mxnet,dmlc/mxnet,hesseltuinhof/mxnet,jennyzhang0215/incubator-mxnet,smolix/incubator-mxnet,navrasio/mxnet,DickJC123/mxnet,dmlc/mxnet,apaleyes/mxnet,Ldpe2G/mxnet,indhub/mxnet,hesseltuinhof/mxnet,navrasio/mxnet,apaleyes/mxnet,apache/incubator-mxnet,zhreshold/mxnet,indhub/mxnet,wangyum/mxnet,crazy-cat/incubator-mxnet,apache/incubator-mxnet,tlby/mxnet,sxjscience/mxnet,danithaca/mxnet,danithaca/mxnet,ForkedReposBak/mxnet,sergeykolychev/mxnet,gautamkmr/incubator-mxnet,arikpoz/mxnet,ShownX/incubator-mxnet,fullfanta/mxnet,yuruofeifei/mxnet,coder-james/mxnet,kkk669/mxnet,yajiedesign/mxnet,hotpxl/mxnet,jiajiechen/mxnet,LinkHS/incubator-mxnet,zhreshold/mxnet,jennyzhang0215/incubator-mxnet,EvanzzzZ/mxnet,xcgoner/dist-mxnet,zhreshold/mxnet,thirdwing/mxnet,hotpxl/mxnet,kkk669/mxnet,dmlc/mxnet,navrasio/mxnet,ykim362/mxnet,vikingMei/mxnet,yajiedesign/mxnet,hpi-xnor/BMXNet,pluskid/mxnet,ForkedReposBak/mxnet,Ldpe2G/mxnet,kevinthesun/mxnet,zhreshold/mxnet,vikingMei/mxnet,leezu/mxnet,weleen/mxnet,luoyetx/mxnet,Northrend/mxnet,TuSimple/mxnet,madjam/mxnet,vikingMei/mxnet,TuSimple/mxnet,hesseltuinhof/mxnet,leezu/mxnet,coder-james/mxnet,madjam/mxnet,crazy-cat/incubator-mxnet,navrasio/mxnet,sergeykolychev/mxnet,Guneet-Dhillon/mxnet,ykim362/mxnet,ykim362/mxnet,pluskid/mxnet,jennyzhang0215/incubator-mxnet,DR08/mxnet,precedenceguo/mxnet