minor ode cleanup
minor ode cleanup

the global declaration of y was moved to the top of the function
and update the inline comments in _handle_Integral which no longer
apply

retlist processing was handled as a list comprehension

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