On 06/14/2013 10:49 AM, Steven D'Aprano wrote: > Correct. In Python, all boolean expressions are duck-typed: they aren't > restricted to True and False, but to any "true-ish" and "false-ish" > value, or as the Javascript people call them, truthy and falsey values. > <snip> > There are a couple of anomalies -- the timestamp representing midnight is > falsey, because it is implemented as a zero number of seconds; also > exhausted iterators and generators ought to be considered falsey, since > they are empty, but because they don't know they are empty until called, > they are actually treated as truthy. But otherwise, the model is very > clean.
Good explanation! Definitely enlightened me. Thank you. -- http://mail.python.org/mailman/listinfo/python-list
