On Tue, 23 Aug 2022 at 12:40, Stefan Monnier <monnier@iro.umontreal.ca> wrote:

>
>> The Python shell already allows a shell to be "dedicated" to a buffer.
>> This patch adds the option to create a shell dedicated to a project, as
>> well as the option to make all Python shells dedicated by default.
>>
>> Stefan: you mentioned python.el could use project.el without a hard
>> dependency, so it remains compatible with old Emacsen.  Is this a good
>> approach?  (Also: the added seq dependency is kinda superfluous now, but
>> it's nice to have it available for future developments as well.)
>
> I must admit that I don't really know how important is the ability to
> install python.el in older Emacsen.  I know the maintainers of python.el
> want it to be possible, but that doesn't preclude depending on `seq.el`
> and `project.el` since those are also available on GNU ELPA.  But it
> does make it less convenient for the end user, so whether that matters
> depends on its importance.

I see the point of remaining compatible going back one or two versions,
not so much with even older versions; it's not like a Python major mode
is unavailable in Emacs 24 and 25.

> I suggested a "soft" dependency as a possible choice, without implying
> it's necessarily better or worse, sorry :-(

In any case I don't see any other practical way to proceed...

> But, FWIW the patch looks good to me.
>
>> -;; Package-Requires: ((emacs "24.4") (cl-lib "1.0"))
>
> BTW, Emacs-24.3 already provides cl-lib-1.0 so we can drop `cl-lib` from
> this line.
>
>
>         Stefan

I've attached a new patch with a requirement on compat, so we can use
read-multiple-choice unconditionally (I also removed the unnecessary
cl-lib from the Package-Requires header).