guido van rossum hoaufpythonorg went years ago first reviewed design every pov decided keys ingrained collective mind python users long time would mistake change wed apr 2 2008 1157 ivan krstić wrote apr 2 2008 1136 guido van rossum wrote predict listxkeys remain rarity except code converted 2to3 however sortedxkeys become wellknown idiom much better one old idiom keys xkeys keyssort doesnt led easily use expression particular rationale describing use function calls vs object properties core python see function call required something could conveniently expressed property generally tells im computing something might expensive call ill recompute made sense keys 2x true 30 good reason besides compatibility keep parentheses sortedxkeys nice ring cheers ivan krstić httpradianorg guido van rossum home page httpwwwpythonorgguido _______________________________________________ python3000 mailing list smsbmo9552pythonorg httpmailpythonorgmailmanlistinfopython3000 unsubscribe httpmailpythonorgmailmanoptionspython3000python300040tangomucom wed 06 aug 2008 225101 0700 python3000 spooky behavior dictitems friends