exec_command.py: remove a version check for > Python 2.1
exec_command.py: remove a version check for > Python 2.1

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