Subject: Re: bug#63622: lisp/progmodes/python.el: performance regression introduced by multiline font-lock

From: Stefan Monnier <[email-masked]>
Date: Tue, 23 May 2023 13:08:25 -0400

> Thanks.  I also revised python-font-lock-extend-region.  The attached
> 0001-Use-font-lock-extend-region-functions-in-python-mode.patch is the
> revised patch.

LGTM, thank you.

I'm not sufficiently familiar with Python to have an opinion on the
rest, tho your analysis sounds convincing.

        Stefan