New submission from Brad Warren <bradmwarren@gmail.com>: argparse internally sets dest=SUPPRESS in action classes like _HelpAction and _VersionAction to prevent an attribute from being created for that option on the resulting namespace. Can users creating custom Action classes also use this functionality without worrying about it suddenly breaking in a new version of Python? If so, can we document this functionality? I'd be happy to submit a PR. ---------- assignee: docs@python components: Documentation messages: 383089 nosy: bmw, docs@python priority: normal severity: normal status: open title: Can people use dest=argparse.SUPPRESS in custom Action classes? versions: Python 3.10, Python 3.6, Python 3.7, Python 3.8, Python 3.9 _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue42650> _______________________________________