[skip ci] Amended whitespace to PEP8 compliant form for perm_groups.py
[skip ci] Amended whitespace to PEP8 compliant form for perm_groups.py

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