[Python-ideas] Re: allow initial comma

On Sat, Mar 13, 2021 at 3:28 AM <2QdxY4RzWzUUiLuE@potatochowder.com> wrote:

For exmaple, if I have a multiline list like this:

x = [ 1, 2 ]

and add a new element to the end, then I end up with the diff including the 2 even though I didn't change the 2. But if I had had a trailing comma, then the diff only shows the new entry.

I see a lot of SQL with the commas at the beginnings of the lines (mostly, I think, due to SQL's syntax), but it solves the same problem.

Also in JSON, and for the same reason: the syntax disallows the trailing comma. There is no reason to create the awkwardness if trailing commas are accepted. ChrisA