[3.9] gh-92417: doctest docs: remove references to Python <3.6 (GH-92420)

[miss-islington]

(cherry picked from commit 5639ea1)

Co-authored-by: Alex Waygood [email protected]

[miss-islington]

@AlexWaygood and @serhiy-storchaka: Status check is done, and it's a success ✅ .

[miss-islington]

@AlexWaygood and @serhiy-storchaka: Status check is done, and it's a success ✅ .

[miss-islington]

@AlexWaygood and @serhiy-storchaka: Status check is done, and it's a success ✅ .

[miss-islington]

@AlexWaygood and @serhiy-storchaka: Status check is done, and it's a success ✅ .

[CAM-Gerlach]

(Apparently I can't delete this comment, but I immediately realized I'd been on the wrong tab and accidentally submitted a review on a backport PR right after submitting it instead of the main one. My fault, sorry.)

[AlexWaygood]

It looks like there's a chunk of text referring to compatibility with Python <3.2, and workarounds to support Python <2.4, in the description of doctest.EXCEPTION_DETAIL; should that be elided as well? It substantially complicates the description of doctest.IGNORE_EXCEPTION_DETAIL and doesn't seem to be of any use for modern Python, beyond what is already noted in the versionchanged notice.

Let's discuss that over at the issue (#92417) rather than in the comment thread for a backport PR :-)

[CAM-Gerlach]

Yes, I'd realized immediately after submitting it but couldn't delete my review, so I ended up just editing it instead. Really sorry about that, I'm a doofus.

[AlexWaygood]

Yes, I'd realized immediately after submitting it but couldn't delete my review, so I ended up just editing it instead. Really sorry about that, I'm a doofus.

No reason to be sorry! I'm sure miss-islington appreciates the review :-)

[rhettinger]

Please don't backport these. That is only appropriate for a bug fix.