dont use collections on 2.4
dont use collections on 2.4

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