New submission from Harvastum <harvastum@gmail.com>: This entire page: https://docs.python.org/3.10/library/re.html does not have a single occurrence of the word "lambda". In my humble opinion it's a pretty important trick to utilize capture groups in lambdas to e.g. use them to access value in a dictionary. Examples are available here: https://stackoverflow.com/a/18737927/6380791 and here: https://www.oreilly.com/library/view/python-cookbook/0596001673/ch03s15.html but somehow not in the documentation. There is a mention about referencing groups from different contexts, but the lambda is quite unique and although I think it does fall under "when processing match object m", I think it still is worth its own entry. Btw. it's my first contribution here, sorry for any faux pas I may have commited, please point it out if I did! ---------- assignee: docs@python components: Documentation messages: 382736 nosy: docs@python, harvastum priority: normal severity: normal status: open title: [doc] add more examples and additional explanation to re.sub type: enhancement versions: Python 3.9 _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue42601> _______________________________________