bug#37726:

[Lars Ingebrigtsen]

Carlos Pita <carlosjosepita@gmail.com> writes:

> * progmodes/python.el (python-indent--calculate-indentation): Add an
> additional indentation point to match indentation of previous line in
> a multiline string. Then Tab iterates between 0, the start indentation
> level and the previous line level.

This sounds reasonable to me, so I've applied it to Emacs 28.  I'm no
Python expert, though, so if there are any objections, feel free to
revert.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no