terry reedy twhvuyludeledu greg ewing wrote message news47ed70d26030509canterburyacnz marcin qrczak kowalczyk wrote lists guess havent checked made like tuples always thought built one item time wrong see doesnt seem much logic consistency would possible consistently build builtin collections bunches say 256 items 128 pairs compromise efficient allatonce safer oneatatime methods would effectively allatonce perhaps 99 literals without imposing arbitrary limits extreme cases tjr wed 06 aug 2008 224914 0400 python3000 dict literal bytecode