Paul Eggert <eggert@cs.ucla.edu> schrieb am Mo., 2. Mai 2016 um 18:05 Uhr:

> Thanks for the bug report and patch, but I ran into a problem with the
> patch. Suppose I do this:
>
> emacs -Q
> M-x electric-quote-mode
> M-x customize-variable RET electric-quote-string, set it to t, save
> M-x python-mode
> 'abc'
>
> That is, I type apostrophe-a-b-c-apostrophe in Python mode. With the
> patch, the buffer will contain:
>
> 'abc’
>
> The opening apostrophe is OK, but the closing apostrophe is considered
> to be inside a string so it is transmogrified into a right single
> quotation mark. A Python programmer would want both to be apostrophes.
>

I'm not sure, I think if a user has electric-quote-string enabled, that's
the behavior they want, because it's inside a string. However, I can see
that both approaches are valid. There is probably no good way that would
work in all circumstances.