some plotting methods don't work in py3k without this. objects are making their way into sympy's cache.
some plotting methods don't work in py3k without this. objects are making
their way into sympy's cache.

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