Lambda returning tuple question, multi-expression

[Cameron Simpson]

On 09Mar2023 09:06, Alan Gauld <learn2program at gmail.com> wrote:
>Also layout is all important here. It could get very messy to read if
>indentation isn't clear. You only have to look at some Javascript code
>with function definitions as arguments to functions to see how clunky
>that can be.

Just a note that some code formatters use a trailing comma on the last 
element to make the commas fold points. Both yapf (my preference) and 
black let you write a line like (and, indeed, flatten if short enough):

     ( a, b, c )

but if you write:

     ( a, b, c, )

they'll fold the lines like:

     ( a,
       b,
       c,
     )

in varying flavours of indentation depending on tuning. The point being 
that if, like me, you often have a code formatter active-on-save it can 
be hinted to nicely present complex tuples (or parameter lists and 
imports).

It isn't magic, but can be quite effective.

Cheers,
Cameron Simpson <cs at cskk.id.au>