On Wed, Mar 01, 2017 at 09:29:04AM +0000, Alan Gauld via Tutor wrote: > You need to be explicit: > > if hours_worked > 40 and hours_worked < 60: > > You can also write what you intend in a slightly > different form: > > if (40 < hours_worked < 60): > > Note: > The second form an unusual style that I've only > ever seen in Python, most languages insist you > use the first version.
That sort of chained comparison is standard mathematics notation which is hopefully familiar to anyone who has done maths in secondary school. I consider it a serious weakness of other languages that they don't support chained comparisons. Perl6, Coffeescript and Julia are three modern languages which support chained comparisons: https://en.wikipedia.org/wiki/Perl_6#Chained_comparisons http://coffeescript.org/#comparisons http://docs.julialang.org/en/latest/manual/mathematical-operations.html#Chaining-comparisons-1 -- Steve _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor