3K: core: use BytesIO instead of StringIO in test_regressions on Py3
3K: core: use BytesIO instead of StringIO in test_regressions on Py3

ChanderG/numpy,AustereCuriosity/numpy,pbrod/numpy,empeeu/numpy,MSeifert04/numpy,skwbc/numpy,pdebuyl/numpy,gfyoung/numpy,Anwesh43/numpy,GrimDerp/numpy,dwf/numpy,mindw/numpy,rhythmsosad/numpy,brandon-rhodes/numpy,rherault-insa/numpy,bringingheavendown/numpy,skymanaditya1/numpy,astrofrog/numpy,skymanaditya1/numpy,CMartelLML/numpy,WarrenWeckesser/numpy,CMartelLML/numpy,numpy/numpy-refactor,CMartelLML/numpy,dato-code/numpy,kirillzhuravlev/numpy,trankmichael/numpy,numpy/numpy-refactor,madphysicist/numpy,mattip/numpy,ddasilva/numpy,chatcannon/numpy,Srisai85/numpy,charris/numpy,jonathanunderwood/numpy,cjermain/numpy,embray/numpy,ewmoore/numpy,madphysicist/numpy,rajathkumarmp/numpy,felipebetancur/numpy,dwillmer/numpy,trankmichael/numpy,groutr/numpy,numpy/numpy,anntzer/numpy,abalkin/numpy,stefanv/numpy,andsor/numpy,naritta/numpy,andsor/numpy,skwbc/numpy,stuarteberg/numpy,embray/numpy,musically-ut/numpy,rajathkumarmp/numpy,ewmoore/numpy,moreati/numpy,MichaelAquilina/numpy,dimasad/numpy,dch312/numpy,sonnyhu/numpy,shoyer/numpy,solarjoe/numpy,pelson/numpy,endolith/numpy,dato-code/numpy,embray/numpy,numpy/numpy,nguyentu1602/numpy,MaPePeR/numpy,nbeaver/numpy,tdsmith/numpy,kirillzhuravlev/numpy,has2k1/numpy,sigma-random/numpy,mhvk/numpy,Anwesh43/numpy,BMJHayward/numpy,drasmuss/numpy,Linkid/numpy,rajathkumarmp/numpy,Srisai85/numpy,stuarteberg/numpy,tacaswell/numpy,jschueller/numpy,stefanv/numpy,mortada/numpy,brandon-rhodes/numpy,KaelChen/numpy,dimasad/numpy,solarjoe/numpy,Srisai85/numpy,ssanderson/numpy,gfyoung/numpy,hainm/numpy,pbrod/numpy,GaZ3ll3/numpy,NextThought/pypy-numpy,pyparallel/numpy,joferkington/numpy,jakirkham/numpy,mattip/numpy,jschueller/numpy,utke1/numpy,leifdenby/numpy,astrofrog/numpy,Eric89GXL/numpy,matthew-brett/numpy,Dapid/numpy,Anwesh43/numpy,WillieMaddox/numpy,numpy/numpy,numpy/numpy-refactor,ajdawson/numpy,rgommers/numpy,ahaldane/numpy,pizzathief/numpy,SunghanKim/numpy,ChristopherHogan/numpy,anntzer/numpy,NextThought/pypy-numpy,ddasilva/numpy,mhvk/numpy,argriffing/numpy,dwf/numpy,jakirkham/numpy,musically-ut/numpy,b-carter/numpy,CMartelLML/numpy,kirillzhuravlev/numpy,MaPePeR/numpy,ChristopherHogan/numpy,BabeNovelty/numpy,grlee77/numpy,behzadnouri/numpy,ogrisel/numpy,ogrisel/numpy,bringingheavendown/numpy,ajdawson/numpy,utke1/numpy,Yusa95/numpy,larsmans/numpy,pelson/numpy,MSeifert04/numpy,behzadnouri/numpy,chiffa/numpy,anntzer/numpy,BMJHayward/numpy,madphysicist/numpy,mattip/numpy,yiakwy/numpy,tynn/numpy,maniteja123/numpy,WarrenWeckesser/numpy,cjermain/numpy,rmcgibbo/numpy,mwiebe/numpy,naritta/numpy,ekalosak/numpy,tdsmith/numpy,ahaldane/numpy,rmcgibbo/numpy,grlee77/numpy,nbeaver/numpy,cjermain/numpy,argriffing/numpy,musically-ut/numpy,njase/numpy,SiccarPoint/numpy,has2k1/numpy,MichaelAquilina/numpy,sinhrks/numpy,BabeNovelty/numpy,tynn/numpy,ChristopherHogan/numpy,joferkington/numpy,dwf/numpy,maniteja123/numpy,bertrand-l/numpy,MSeifert04/numpy,mathdd/numpy,matthew-brett/numpy,dwillmer/numpy,Yusa95/numpy,gmcastil/numpy,rajathkumarmp/numpy,charris/numpy,drasmuss/numpy,bmorris3/numpy,mwiebe/numpy,stefanv/numpy,anntzer/numpy,bmorris3/numpy,grlee77/numpy,nguyentu1602/numpy,pelson/numpy,dwf/numpy,pbrod/numpy,Dapid/numpy,pelson/numpy,nbeaver/numpy,endolith/numpy,GaZ3ll3/numpy,dimasad/numpy,seberg/numpy,chatcannon/numpy,stefanv/numpy,cowlicks/numpy,utke1/numpy,empeeu/numpy,dwillmer/numpy,Eric89GXL/numpy,Anwesh43/numpy,pizzathief/numpy,leifdenby/numpy,mhvk/numpy,grlee77/numpy,astrofrog/numpy,stuarteberg/numpy,dwf/numpy,Linkid/numpy,ahaldane/numpy,seberg/numpy,dch312/numpy,SunghanKim/numpy,pdebuyl/numpy,shoyer/numpy,ajdawson/numpy,mindw/numpy,jankoslavic/numpy,BMJHayward/numpy,ViralLeadership/numpy,numpy/numpy,mwiebe/numpy,kirillzhuravlev/numpy,ssanderson/numpy,felipebetancur/numpy,numpy/numpy-refactor,KaelChen/numpy,bmorris3/numpy,behzadnouri/numpy,jakirkham/numpy,dato-code/numpy,Eric89GXL/numpy,mingwpy/numpy,bringingheavendown/numpy,pizzathief/numpy,githubmlai/numpy,mattip/numpy,chatcannon/numpy,MaPePeR/numpy,astrofrog/numpy,dwillmer/numpy,BMJHayward/numpy,ViralLeadership/numpy,skwbc/numpy,AustereCuriosity/numpy,rudimeier/numpy,cowlicks/numpy,ESSS/numpy,naritta/numpy,sonnyhu/numpy,skymanaditya1/numpy,numpy/numpy-refactor,rudimeier/numpy,moreati/numpy,Srisai85/numpy,mortada/numpy,andsor/numpy,jankoslavic/numpy,mindw/numpy,ewmoore/numpy,githubmlai/numpy,NextThought/pypy-numpy,felipebetancur/numpy,rgommers/numpy,andsor/numpy,shoyer/numpy,seberg/numpy,tdsmith/numpy,rhythmsosad/numpy,immerrr/numpy,gmcastil/numpy,immerrr/numpy,musically-ut/numpy,mingwpy/numpy,rgommers/numpy,dch312/numpy,charris/numpy,b-carter/numpy,embray/numpy,ContinuumIO/numpy,GrimDerp/numpy,ContinuumIO/numpy,mathdd/numpy,leifdenby/numpy,pdebuyl/numpy,astrofrog/numpy,jakirkham/numpy,njase/numpy,rhythmsosad/numpy,Yusa95/numpy,rudimeier/numpy,naritta/numpy,jonathanunderwood/numpy,endolith/numpy,pbrod/numpy,SunghanKim/numpy,rherault-insa/numpy,dato-code/numpy,gmcastil/numpy,Eric89GXL/numpy,ChanderG/numpy,sinhrks/numpy,tynn/numpy,rherault-insa/numpy,yiakwy/numpy,ChristopherHogan/numpy,ssanderson/numpy,empeeu/numpy,argriffing/numpy,nguyentu1602/numpy,ahaldane/numpy,larsmans/numpy,grlee77/numpy,moreati/numpy,shoyer/numpy,brandon-rhodes/numpy,SiccarPoint/numpy,kiwifb/numpy,hainm/numpy,mingwpy/numpy,yiakwy/numpy,WarrenWeckesser/numpy,chiffa/numpy,mingwpy/numpy,ESSS/numpy,matthew-brett/numpy,pizzathief/numpy,jankoslavic/numpy,ajdawson/numpy,jschueller/numpy,ewmoore/numpy,BabeNovelty/numpy,simongibbons/numpy,BabeNovelty/numpy,sigma-random/numpy,bmorris3/numpy,brandon-rhodes/numpy,drasmuss/numpy,rgommers/numpy,jorisvandenbossche/numpy,jschueller/numpy,WillieMaddox/numpy,ChanderG/numpy,SiccarPoint/numpy,ogrisel/numpy,simongibbons/numpy,KaelChen/numpy,charris/numpy,skymanaditya1/numpy,ViralLeadership/numpy,chiffa/numpy,sonnyhu/numpy,madphysicist/numpy,has2k1/numpy,tacaswell/numpy,hainm/numpy,rmcgibbo/numpy,WillieMaddox/numpy,simongibbons/numpy,Linkid/numpy,sonnyhu/numpy,hainm/numpy,WarrenWeckesser/numpy,njase/numpy,ChanderG/numpy,abalkin/numpy,ContinuumIO/numpy,ESSS/numpy,b-carter/numpy,madphysicist/numpy,jankoslavic/numpy,mhvk/numpy,SiccarPoint/numpy,felipebetancur/numpy,rhythmsosad/numpy,AustereCuriosity/numpy,maniteja123/numpy,groutr/numpy,GrimDerp/numpy,Yusa95/numpy,cowlicks/numpy,SunghanKim/numpy,jorisvandenbossche/numpy,immerrr/numpy,sinhrks/numpy,Linkid/numpy,simongibbons/numpy,immerrr/numpy,tacaswell/numpy,jakirkham/numpy,GaZ3ll3/numpy,matthew-brett/numpy,trankmichael/numpy,larsmans/numpy,bertrand-l/numpy,ahaldane/numpy,dimasad/numpy,groutr/numpy,matthew-brett/numpy,WarrenWeckesser/numpy,stuarteberg/numpy,mathdd/numpy,GaZ3ll3/numpy,pyparallel/numpy,ogrisel/numpy,pizzathief/numpy,kiwifb/numpy,MaPePeR/numpy,empeeu/numpy,joferkington/numpy,ekalosak/numpy,mathdd/numpy,seberg/numpy,has2k1/numpy,ekalosak/numpy,pyparallel/numpy,MSeifert04/numpy,trankmichael/numpy,sigma-random/numpy,sinhrks/numpy,kiwifb/numpy,NextThought/pypy-numpy,mortada/numpy,simongibbons/numpy,rmcgibbo/numpy,MichaelAquilina/numpy,MSeifert04/numpy,sigma-random/numpy,KaelChen/numpy,dch312/numpy,rudimeier/numpy,larsmans/numpy,Dapid/numpy,ekalosak/numpy,mortada/numpy,mhvk/numpy,cjermain/numpy,jorisvandenbossche/numpy,ewmoore/numpy,MichaelAquilina/numpy,githubmlai/numpy,pbrod/numpy,nguyentu1602/numpy,yiakwy/numpy,jorisvandenbossche/numpy,pelson/numpy,jorisvandenbossche/numpy,endolith/numpy,abalkin/numpy,jonathanunderwood/numpy,ogrisel/numpy,ddasilva/numpy,cowlicks/numpy,pdebuyl/numpy,joferkington/numpy,bertrand-l/numpy,stefanv/numpy,tdsmith/numpy,shoyer/numpy,solarjoe/numpy,GrimDerp/numpy,embray/numpy,mindw/numpy,githubmlai/numpy,gfyoung/numpy