[issue33878] Doc: Assignment statement to tuple or list: case missing.

Change by Julien Palard : -- resolution: -> fixed stage: patch review -> resolved status: open -> closed ___ Python tracker ___

[issue33878] Doc: Assignment statement to tuple or list: case missing.

Julien Palard added the comment: New changeset d0ebbf4895439233c8398dbdd0456d07132b2a6f by Julien Palard (Miss Islington (bot)) in branch '3.6': bpo-33878: Doc: Fix missing case by simplifying. (GH-7762) https://github.com/python/cpython/commit/d0ebbf4895439233c8398dbdd0456d07132b2a6f

[issue33878] Doc: Assignment statement to tuple or list: case missing.

Julien Palard added the comment: New changeset aa493b5c18463ab45c087564e287643606f004ca by Julien Palard (Miss Islington (bot)) in branch '3.7': bpo-33878: Doc: Fix missing case by simplifying. (GH-7762) https://github.com/python/cpython/commit/aa493b5c18463ab45c087564e287643606f004ca

[issue33878] Doc: Assignment statement to tuple or list: case missing.

Change by miss-islington : -- pull_requests: +9744 ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue33878] Doc: Assignment statement to tuple or list: case missing.

Change by miss-islington : -- pull_requests: +9743 ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue33878] Doc: Assignment statement to tuple or list: case missing.

Julien Palard added the comment: New changeset 082875dcd6d482558e5f1da97a1c801d60b3ed5b by Julien Palard in branch 'master': bpo-33878: Doc: Fix missing case by simplifying. (GH-7762) https://github.com/python/cpython/commit/082875dcd6d482558e5f1da97a1c801d60b3ed5b --

[issue33878] Doc: Assignment statement to tuple or list: case missing.

Change by Emily Morehouse : -- nosy: +emilyemorehouse ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue33878] Doc: Assignment statement to tuple or list: case missing.

Change by Pablo Galindo Salgado : -- pull_requests: +9719 ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue33878] Doc: Assignment statement to tuple or list: case missing.

Guido van Rossum added the comment: I would like to see this fixed. On Fri, Nov 9, 2018 at 4:27 AM Serhiy Storchaka wrote: > > Serhiy Storchaka added the comment: > > I think that the fact that `(a) = 42` is accepted is rather an > implementation detail, and the consequence of limitations

[issue33878] Doc: Assignment statement to tuple or list: case missing.

Serhiy Storchaka added the comment: I think that the fact that `(a) = 42` is accepted is rather an implementation detail, and the consequence of limitations of the grammar parser. It accepts arbitrary expression at the left hand side of assignment. After transforming CST to AST unsuitable

[issue33878] Doc: Assignment statement to tuple or list: case missing.

Change by Julien Palard : -- keywords: +patch pull_requests: +7370 stage: -> patch review ___ Python tracker ___ ___

[issue33878] Doc: Assignment statement to tuple or list: case missing.

Martin Panter added the comment: I think it is okay to leave out the options for the unpacking case. But I think it is worth clarifying that the single-target case also applies without parentheses, but that it doesn’t apply if there is a trailing comma. So: ‘‘‘ If the target list is a single

[issue33878] Doc: Assignment statement to tuple or list: case missing.

Julien Palard added the comment: Agree, the empty list could be merged, the only special-case is the "single item in parenthesis", as always. I'm still exploring the path to simplicity over explicitly listing everything (but in the reference, explicitly listing could be what we need):

[issue33878] Doc: Assignment statement to tuple or list: case missing.

Martin Panter added the comment: I think I intended the third option to include all comma-separated lists, including: a, b, c = x # No brackets (a, b, c) = x # Round brackets [a, b, c] = x # Square brackets a, = x # Single target with comma Perhaps something like this would be clearer:

[issue33878] Doc: Assignment statement to tuple or list: case missing.

New submission from Julien Palard : In [1] I read: > If the target list is a comma-separated list of targets, or a single target > in square brackets This come from https://bugs.python.org/issue23275 (patch is [2]). I suspect there's a missing case "list of targets in square brackets" (and