"Clayton Kirkwood" <c...@godblessthe.us> writes: > So, there is a difference between None and False, is that the issue?
Yes. Those two values are different and not equal; but both evaluate false in a boolean context. > I don’t necessarily see the difference as stated in the subject line. The difference is: there is exactly one ‘True’ value, but many values which *evaluate* true in a boolean context. That is, many values (any non-empty string, any non-zero number, any non-empty collection, most values of most types) are not equal to ‘True’; but will evaluate true when used in an ‘if’ or ‘while’ or other boolean context. So, the documentation stating “X has a value of True” leads to the incorrect inference you drew, of expecting it to *compare equal to* True (and, indeed, to be *identical to* True). Whereas what the documentation needs to say is that the objects it is referring to have values which *evaluate true* in a boolean context such as ‘if’ or ‘while’. No implications about values being equal to other values. -- \ “I went to the cinema, it said ‘Adults: $5.00, Children $2.50’. | `\ So I said ‘Give me two boys and a girl.’” —Steven Wright | _o__) | Ben Finney _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
