On Wed, Mar 2, 2022 at 5:00 PM Cameron Simpson <c...@cskk.id.au> wrote: > > On 02Mar2022 08:29, Larry Martell <larry.mart...@gmail.com> wrote: > >On Tue, Mar 1, 2022 at 7:32 PM Rob Cliffe <rob.cli...@btinternet.com> wrote: > >> I think itertools.product is what you need. > >> Example program: > >> > >> import itertools > >> opsys = ["Linux","Windows"] > >> region = ["us-east-1", "us-east-2"] > >> print(list(itertools.product(opsys, region))) > > > >This does not work if region = []. I wrote in question that either > >list could be empty. > > What do you want to get if a list is empty? You haven't said. My > personal expectation would be an empty result. > > Alternatively, if you expect an empty list to imply some single default > the the experession: > > the_list or (the_default,) > > might be of use.
I've solved the issue. -- https://mail.python.org/mailman/listinfo/python-list
