test nested context managers
test nested context managers

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