gh-139551: add support for BaseExceptionGroup in IDLE (GH-139563)

Meaningfully render ExceptionGroup tracebacks in the IDLE GUI REPL.

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Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Gregory P. Smith <greg@krypto.org>

Locked-chess-official committed 4mo ago

1e79bf6c05d057c033c396e58d20618d80d392f2

Parent: 3ab94d6

Committed by GitHub <noreply@github.com> on 4/12/2026, 5:06:41 PM