>>>>> "MvL" == Martin v Loewis <martin at v.loewis.de> writes:
MvL> While Gustavo suggests to let pass 'a is True', I recommend
MvL> to give a warning for this - people who want to see whether
MvL> something is True should write 'True is a'.
"True is a"... what? hippopotamus? <wink>.
-Barry