Alan Gauld wrote: > Which language(s) do you know that has such a feature? > And why do you consider it so useful that you expect to find > it in Python?
I'm not the original poster, but being a perlhead before, I can say it exists in Perl. It is very often used too. I used to miss it at first, but normally I now do the right thing semantically. Counting on the variable being defined or not is simply another bit of information. Assigning a value for that case is much cleaner. It is not used for black magic in Perl, AFAIK. Just normal testing. Hugo _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
