Fix py3-incompatible code
Fix py3-incompatible code

kevalds51/sympy,Designist/sympy,Titan-C/sympy,Arafatk/sympy,garvitr/sympy,pbrady/sympy,diofant/diofant,sahilshekhawat/sympy,AunShiLord/sympy,madan96/sympy,bukzor/sympy,Vishluck/sympy,Arafatk/sympy,oliverlee/sympy,beni55/sympy,MridulS/sympy,Mitchkoens/sympy,lindsayad/sympy,Designist/sympy,ChristinaZografou/sympy,chaffra/sympy,shipci/sympy,skidzo/sympy,sunny94/temp,shikil/sympy,cswiercz/sympy,abloomston/sympy,mcdaniel67/sympy,saurabhjn76/sympy,wyom/sympy,ChristinaZografou/sympy,yashsharan/sympy,emon10005/sympy,shikil/sympy,Curious72/sympy,cccfran/sympy,wanglongqi/sympy,kaushik94/sympy,cccfran/sympy,moble/sympy,mafiya69/sympy,Sumith1896/sympy,kevalds51/sympy,Gadal/sympy,Curious72/sympy,jamesblunt/sympy,cswiercz/sympy,abloomston/sympy,liangjiaxing/sympy,VaibhavAgarwalVA/sympy,jbbskinny/sympy,cccfran/sympy,ChristinaZografou/sympy,jaimahajan1997/sympy,Designist/sympy,cswiercz/sympy,sahilshekhawat/sympy,bukzor/sympy,grevutiu-gabriel/sympy,VaibhavAgarwalVA/sympy,jaimahajan1997/sympy,skidzo/sympy,drufat/sympy,jerli/sympy,Vishluck/sympy,drufat/sympy,Gadal/sympy,moble/sympy,farhaanbukhsh/sympy,ahhda/sympy,garvitr/sympy,iamutkarshtiwari/sympy,toolforger/sympy,beni55/sympy,vipulroxx/sympy,MridulS/sympy,Shaswat27/sympy,mafiya69/sympy,pbrady/sympy,atreyv/sympy,Titan-C/sympy,mcdaniel67/sympy,ahhda/sympy,souravsingh/sympy,hargup/sympy,MechCoder/sympy,Titan-C/sympy,kaushik94/sympy,atsao72/sympy,vipulroxx/sympy,emon10005/sympy,maniteja123/sympy,abhiii5459/sympy,wanglongqi/sympy,saurabhjn76/sympy,yukoba/sympy,AkademieOlympia/sympy,abhiii5459/sympy,Arafatk/sympy,jamesblunt/sympy,MechCoder/sympy,wanglongqi/sympy,grevutiu-gabriel/sympy,kaushik94/sympy,yukoba/sympy,aktech/sympy,Gadal/sympy,asm666/sympy,kumarkrishna/sympy,pbrady/sympy,lindsayad/sympy,MechCoder/sympy,liangjiaxing/sympy,madan96/sympy,farhaanbukhsh/sympy,jaimahajan1997/sympy,toolforger/sympy,emon10005/sympy,yashsharan/sympy,MridulS/sympy,sampadsaha5/sympy,kevalds51/sympy,Vishluck/sympy,oliverlee/sympy,maniteja123/sympy,rahuldan/sympy,Davidjohnwilson/sympy,ga7g08/sympy,postvakje/sympy,ga7g08/sympy,iamutkarshtiwari/sympy,kaichogami/sympy,drufat/sympy,wyom/sympy,atreyv/sympy,chaffra/sympy,AkademieOlympia/sympy,sahilshekhawat/sympy,postvakje/sympy,shipci/sympy,VaibhavAgarwalVA/sympy,Davidjohnwilson/sympy,meghana1995/sympy,sunny94/temp,kaichogami/sympy,liangjiaxing/sympy,mcdaniel67/sympy,iamutkarshtiwari/sympy,meghana1995/sympy,mafiya69/sympy,Shaswat27/sympy,hargup/sympy,abhiii5459/sympy,sunny94/temp,debugger22/sympy,jbbskinny/sympy,rahuldan/sympy,souravsingh/sympy,vipulroxx/sympy,pandeyadarsh/sympy,Curious72/sympy,shikil/sympy,yukoba/sympy,chaffra/sympy,Davidjohnwilson/sympy,grevutiu-gabriel/sympy,postvakje/sympy,aktech/sympy,meghana1995/sympy,wyom/sympy,beni55/sympy,abloomston/sympy,jbbskinny/sympy,hargup/sympy,garvitr/sympy,Shaswat27/sympy,Mitchkoens/sympy,sampadsaha5/sympy,atsao72/sympy,jerli/sympy,skidzo/sympy,sahmed95/sympy,skirpichev/omg,maniteja123/sympy,AunShiLord/sympy,pandeyadarsh/sympy,ga7g08/sympy,kaichogami/sympy,sampadsaha5/sympy,Sumith1896/sympy,shipci/sympy,kumarkrishna/sympy,AkademieOlympia/sympy,pandeyadarsh/sympy,ahhda/sympy,farhaanbukhsh/sympy,Mitchkoens/sympy,sahmed95/sympy,kumarkrishna/sympy,jamesblunt/sympy,asm666/sympy,debugger22/sympy,toolforger/sympy,Sumith1896/sympy,moble/sympy,madan96/sympy,AunShiLord/sympy,yashsharan/sympy,souravsingh/sympy,rahuldan/sympy,aktech/sympy,atsao72/sympy,oliverlee/sympy,saurabhjn76/sympy,asm666/sympy,bukzor/sympy,atreyv/sympy,debugger22/sympy,jerli/sympy,sahmed95/sympy,lindsayad/sympy