François Pinard <pinard at iro.umontreal.ca> wrote: > By the way, is there common wisdom (or rather, maybe, usage-standards-to-be) > about using `is' instead of `=='? according to the eff-bot: foo is None type(foo) is type(bar) # same type foo is bar # same instance use '==' for everything else (unless you know what you're doing, of course). </F>