Fixed doc_version check to compy with PEP 440.
Fixed doc_version check to compy with PEP 440.

jerli/sympy,jaimahajan1997/sympy,lindsayad/sympy,oliverlee/sympy,aktech/sympy,wanglongqi/sympy,toolforger/sympy,jerli/sympy,oliverlee/sympy,jbbskinny/sympy,ChristinaZografou/sympy,abloomston/sympy,MechCoder/sympy,AkademieOlympia/sympy,farhaanbukhsh/sympy,yukoba/sympy,bukzor/sympy,Shaswat27/sympy,kaichogami/sympy,Vishluck/sympy,VaibhavAgarwalVA/sympy,grevutiu-gabriel/sympy,Gadal/sympy,kevalds51/sympy,mafiya69/sympy,cswiercz/sympy,kaushik94/sympy,ChristinaZografou/sympy,sahilshekhawat/sympy,skidzo/sympy,Shaswat27/sympy,jaimahajan1997/sympy,ga7g08/sympy,sampadsaha5/sympy,bukzor/sympy,Arafatk/sympy,farhaanbukhsh/sympy,MechCoder/sympy,abloomston/sympy,shikil/sympy,saurabhjn76/sympy,AkademieOlympia/sympy,ahhda/sympy,emon10005/sympy,Titan-C/sympy,skidzo/sympy,madan96/sympy,garvitr/sympy,iamutkarshtiwari/sympy,wyom/sympy,farhaanbukhsh/sympy,atreyv/sympy,wanglongqi/sympy,yashsharan/sympy,mcdaniel67/sympy,saurabhjn76/sympy,Curious72/sympy,ga7g08/sympy,atreyv/sympy,moble/sympy,aktech/sympy,drufat/sympy,mcdaniel67/sympy,Gadal/sympy,postvakje/sympy,VaibhavAgarwalVA/sympy,Vishluck/sympy,maniteja123/sympy,cswiercz/sympy,Vishluck/sympy,kumarkrishna/sympy,maniteja123/sympy,rahuldan/sympy,AkademieOlympia/sympy,mafiya69/sympy,asm666/sympy,asm666/sympy,atsao72/sympy,atreyv/sympy,postvakje/sympy,shikil/sympy,MechCoder/sympy,maniteja123/sympy,toolforger/sympy,yashsharan/sympy,Designist/sympy,lindsayad/sympy,kumarkrishna/sympy,kevalds51/sympy,hargup/sympy,madan96/sympy,sampadsaha5/sympy,grevutiu-gabriel/sympy,sahilshekhawat/sympy,oliverlee/sympy,Arafatk/sympy,toolforger/sympy,Curious72/sympy,kaichogami/sympy,rahuldan/sympy,sahmed95/sympy,kaushik94/sympy,grevutiu-gabriel/sympy,kaichogami/sympy,Arafatk/sympy,madan96/sympy,rahuldan/sympy,garvitr/sympy,sampadsaha5/sympy,sahmed95/sympy,atsao72/sympy,sahmed95/sympy,Davidjohnwilson/sympy,abhiii5459/sympy,sahilshekhawat/sympy,yukoba/sympy,pandeyadarsh/sympy,iamutkarshtiwari/sympy,souravsingh/sympy,shikil/sympy,moble/sympy,VaibhavAgarwalVA/sympy,lindsayad/sympy,mcdaniel67/sympy,kaushik94/sympy,chaffra/sympy,postvakje/sympy,Titan-C/sympy,chaffra/sympy,bukzor/sympy,saurabhjn76/sympy,atsao72/sympy,pandeyadarsh/sympy,cswiercz/sympy,Curious72/sympy,Gadal/sympy,yukoba/sympy,abhiii5459/sympy,souravsingh/sympy,abloomston/sympy,Designist/sympy,kevalds51/sympy,Titan-C/sympy,hargup/sympy,drufat/sympy,garvitr/sympy,pandeyadarsh/sympy,Designist/sympy,wyom/sympy,debugger22/sympy,ahhda/sympy,Davidjohnwilson/sympy,moble/sympy,emon10005/sympy,jaimahajan1997/sympy,jbbskinny/sympy,yashsharan/sympy,ga7g08/sympy,iamutkarshtiwari/sympy,kumarkrishna/sympy,debugger22/sympy,mafiya69/sympy,Shaswat27/sympy,wanglongqi/sympy,aktech/sympy,souravsingh/sympy,abhiii5459/sympy,asm666/sympy,Davidjohnwilson/sympy,wyom/sympy,chaffra/sympy,jerli/sympy,hargup/sympy,jbbskinny/sympy,ahhda/sympy,emon10005/sympy,skidzo/sympy,debugger22/sympy,drufat/sympy,ChristinaZografou/sympy