Backport mpmath's fix for py.test from https://github.com/fredrik-johansson/mpmath/pull/17
Backport mpmath's fix for py.test from https://github.com/fredrik-johansson/mpmath/pull/17

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