On 29/08/2021 22.24, Chris Angelico wrote: > On Sun, Aug 29, 2021 at 8:14 PM dn via Python-list > <python-list@python.org> wrote: >> Efficiency: >> - wonder how max( d ) == min( d ) compares for speed with the set() type >> constructor? > > That may or may not be an improvement. > >> - alternately len( d ) < 2? >> - or len( d ) - 1 coerced to a boolean by the if? > > Neither of these will make any notable improvement. The work is done > in constructing the set, and then you're taking the length. How you do > the comparison afterwards is irrelevant.
It was far too late for either of us (certainly this little boy) to be out-and-coding - plus an excellent illustration of why short-names are a false-economy which can quickly (and easily) lead to "technical debt"! The "d" is a tuple (the 'next' returned from the zip-output object) consisting of a number of die-throw results). Thus, can toss that into len() without (any overhead of) conversion to a set. -- Regards, =dn -- https://mail.python.org/mailman/listinfo/python-list
