Puzzling difference between lists and tuples

Chris Angelico rosuav at gmail.com
Thu Sep 17 20:55:13 EDT 2020


On Fri, Sep 18, 2020 at 10:53 AM Grant Edwards
<grant.b.edwards at gmail.com> wrote:
>
> On 2020-09-17, MRAB <python at mrabarnett.plus.com> wrote:
> >> The only time the parentheses are required for tuple building is when
> >> they would otherwise not be interpreted that way:
> >>
> > They're needed for the empty tuple, which doesn't have a comma.
> >
> >> some_func('first', 'second')   # some_func called with two str args
> >>
> >> some_func(('first', 'second')) # some_func called with one tuple arg
>
> Yea, the syntax for tuple literals has always been a bit of an ugly
> spot in Python.  If ASCII had only had one more set of open/close
> brackets...

... then I'd prefer them to be used for sets, actually. I think the
set/dict collision is more weird than the tuple/grouping one.

Now, if only ASCII had *two* more sets of open/close brackets...

ChrisA


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