Pablo Galindo Salgado <pablog...@gmail.com> added the comment:
There are several ways to implement this: In PR24292 I implemented this idea by adding a new element to the grammar: '&&'. This allows to hard-expect a token: if the token is not there the parsing hard-fails immediately without trying anything else and displays an appropriate error message The other possibility if we think that PR24292 is overkill is manually adding an "invalid_wathever" for every possible compound statement option that parses the statement with a !':' and then raises appropriately. This option is more verbose in the grammar but requires no new machinery. ---------- stage: patch review -> _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue42997> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
