- fix py3k bug re: dictionary values(), fixes #3005
- fix py3k bug re: dictionary values(), fixes #3005

dstufft/sqlalchemy,inspirehep/sqlalchemy,WinterNis/sqlalchemy,inspirehep/sqlalchemy,graingert/sqlalchemy,Akrog/sqlalchemy,hsum/sqlalchemy,bootandy/sqlalchemy,sandan/sqlalchemy,zzzeek/sqlalchemy,olemis/sqlalchemy,brianv0/sqlalchemy,elelianghh/sqlalchemy,epa/sqlalchemy,276361270/sqlalchemy,wujuguang/sqlalchemy,halfcrazy/sqlalchemy,pdufour/sqlalchemy,dstufft/sqlalchemy,monetate/sqlalchemy,j5int/sqlalchemy,brianv0/sqlalchemy,bootandy/sqlalchemy,j5int/sqlalchemy,sandan/sqlalchemy,EvaSDK/sqlalchemy,epa/sqlalchemy,ThiefMaster/sqlalchemy,robin900/sqlalchemy,wujuguang/sqlalchemy,ThiefMaster/sqlalchemy,graingert/sqlalchemy,itkovian/sqlalchemy,EvaSDK/sqlalchemy,davidjb/sqlalchemy,wfxiang08/sqlalchemy,davidjb/sqlalchemy,davidfraser/sqlalchemy,hsum/sqlalchemy,WinterNis/sqlalchemy,davidfraser/sqlalchemy,Akrog/sqlalchemy,bdupharm/sqlalchemy,sqlalchemy/sqlalchemy,halfcrazy/sqlalchemy,wfxiang08/sqlalchemy,itkovian/sqlalchemy,robin900/sqlalchemy,elelianghh/sqlalchemy,bdupharm/sqlalchemy,276361270/sqlalchemy,pdufour/sqlalchemy,monetate/sqlalchemy,olemis/sqlalchemy