gh-102832: IDLE - remove use of deprecated sys.last_xyzs for stackviewer

[iritkatriel]

Pass the exception as an argument instead of as a sys attribute.

• Issue: IDLE - Remove use of deprecated sys.last_xyzs in stackviewer #102832

[iritkatriel]

I see - the tests are skipped on Mac so I didn’t see them fail. I’ll try later on windows and fix this.

[terryjreedy]

Order of PRs: (edited)

1. Set sys.last_exc in run print_exception. #103314 (Done)
2. Patch pyshell open_stack_viewer (comment on StackBrowser/stackbrowser)
3. Apply this with changes and additional changes to open_stack_viewer and run-stackviewer and maybe new unittests.

Now working on 2 and 3.

The comments make a bit more sense when read in order on the diff page.

[bedevere-bot]

When you're done making the requested changes, leave the comment: I have made the requested changes; please review again.

[terryjreedy]

I am reversing 2. patch open_stack_viewer and 3. everything else by including changing open_stack_viewer to pass sys.last_value, which is valid in 3.11 and 3.12.

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After merging this, I will patch main and 3.12 only to pass last_exc instead of last_value, thus removing, I believe, the last use of a deprecated value.

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[iritkatriel]

Sorry, this seems to have dropped off my radar somehow. I'll update it now.

[iritkatriel]

Actually, are you working on this? (You seem to indicate so in #103339 (review)).

[terryjreedy]

I have a partly done branch. Will make this a priority tomorrow.

[terryjreedy]

Assuming CI passes, I believe ready now. Will recheck tomorrow.

[miss-islington]

Thanks @iritkatriel for the PR 🌮🎉.. I'm working now to backport this PR to: 3.11, 3.12.
🐍🍒⛏🤖

[bedevere-bot]

GH-105526 is a backport of this pull request to the 3.12 branch.

[bedevere-bot]

GH-105527 is a backport of this pull request to the 3.11 branch.