Further improvements to the simple iteration
Further improvements to the simple iteration

jarrahwu/peewee,softside/peewee,zhang625272514/peewee,mackjoner/peewee,Sunzhifeng/peewee,jarrahwu/peewee,stas/peewee,d1hotpep/peewee,new-xiaji/peewee,wenxer/peewee,wenxer/peewee,jnovinger/peewee,coleifer/peewee,ronyb29/peewee,d1hotpep/peewee,Sunzhifeng/peewee,fuzeman/peewee,new-xiaji/peewee,Dipsomaniac/peewee,zhang625272514/peewee,Dipsomaniac/peewee,coreos/peewee,coreos/peewee,new-xiaji/peewee,jarrahwu/peewee,jnovinger/peewee,ghukill/peewee,teserak/peewee,Sunzhifeng/peewee,bopo/peewee,coleifer/peewee,Dipsomaniac/peewee,coreos/peewee,zhang625272514/peewee,fuzeman/peewee,lez/peewee,bopo/peewee,coleifer/peewee,bopo/peewee,py4a/peewee