On Sat, Aug 1, 2020 at 4:31 AM Jon Ribbens via Python-list <python-list@python.org> wrote: > > On 2020-07-31, Bart <b...@freeuk.com> wrote: > > Not sure about the trailing commas on each. It seems Python ignores > > trailing commas on tuple constructors, so that the A,B, would be a > > 2-tuple, and A+B, would have been a 1-tuple if A+B had been legal. > > It's not just tuples, it's lists, sets, dictionaries, etc.
And function parameters and basically anything that permits a comma-separated sequence. Or any other sort of sequence. You can have multiple simple statements on one line, separated by semicolons - and it's legal to have a spare semi at the end. It's REALLY annoying to run into those few cases where that doesn't work (JSON, and the SQL "create table" statement, and a handful of others). ChrisA -- https://mail.python.org/mailman/listinfo/python-list
