On Thursday, January 30, 2014 2:08:58 PM UTC, Roy Smith wrote: > In article <3dcdc95d-5e30-46d3-b558-afedf9723...@googlegroups.com>, > > Thibault Langlois <thibault.langl...@gmail.com> wrote: > > > > > You are right. I should have given some context. > > > I am looking at this from the perspective of the teacher that has to > > explain > > > idiosyncrasies of the language to inexperienced students. > > > There are two aspects in this example. > > > 1. the equivalence of True/False with integers 1/0 which have pro and cons. > > > 2. the chaining rules of operators. I agree that it may make sense in some > > > cases like x > y > z but when operators are mixed it leads to counter > > > intuitive cases as the one I pointed out. > > > > > > The recommendations to student are 1) do not assume True == 1 and do not > > use > > > operator chaining. > > > > Better than that, do what I do. > > > > 1) Assume that you don't have the full operator precedence table > > memorized and just parenthesize everything. > > > > 2) In cases where the expression is so simple, you couldn't possibly be > > wrong, see rule #1.
Agreed ! -- https://mail.python.org/mailman/listinfo/python-list