classification
Title: [doc] add more examples and additional explanation to re.sub
Type: enhancement Stage:
Components: Documentation Versions: Python 3.9
process
Status: open Resolution:
Dependencies: Superseder:
Assigned To: docs@python Nosy List: docs@python, harvastum
Priority: normal Keywords:

Created on 2020-12-08 13:48 by harvastum, last changed 2020-12-08 13:48 by harvastum.

Messages (1)
msg382736 - (view) Author: Harvastum (harvastum) Date: 2020-12-08 13:48
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!
History
Date User Action Args
2020-12-08 13:48:29harvastumcreate