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From: Chris Angelico <rosuav@gmail.com>
Newsgroups: comp.lang.python
Subject: Re: Parens do create a tuple
Date: Mon, 11 Apr 2016 11:04:17 +1000
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On Mon, Apr 11, 2016 at 10:57 AM, Ben Finney <ben+python@benfinney.id.au> w=
rote:
> Chris Angelico <rosuav@gmail.com> writes:
>
>> On Mon, Apr 11, 2016 at 10:45 AM, Ben Finney <ben+python@benfinney.id.au=
> wrote:
>> > So the expanation that remains true when you examine it is: People
>> > wanted a literal syntax to create a zero-length tuple. A pair of paren=
s
>> > is that literal syntax, and it's the parens that create the (empty)
>> > tuple.
>>
>> But parens do NOT create a one-element tuple, and that's usually where
>> people trip up.
>
> So let's stop saying =E2=80=9Cparens do not create a tuple=E2=80=9D, beca=
use that's just
> wantonly creating *another* stubling block.

Fair enough. Let's instead say "commas create tuples", which is true
in all cases except the singleton empty tuple. Is that near enough
that we can avoid the detail?

I'd rather be correct on the one-element case and wrong on the empty
than the other way around.

ChrisA