[3.13] gh-155207: Add --dry-run and --diff options to Argument Clinic (GH-155208) - #155215
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serhiy-storchaka merged 2 commits intoAug 5, 2026
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…ythonGH-155208) --dry-run lists the files which would be changed, and --diff writes a unified diff of the changes to the standard output. No file and no directory is created or modified in these modes. (cherry picked from commit 3874ad1a527745fe17f074b2b090faafb50d6556) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com> Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
unittest.TestCase.assertStartsWith() and assertEndsWith() were added in 3.14. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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--dry-run lists the files which would be changed, and --diff writes
a unified diff of the changes to the standard output. No file and no
directory is created or modified in these modes.
(cherry picked from commit 3874ad1)
Co-authored-by: Serhiy Storchaka storchaka@gmail.com
Co-Authored-By: Claude Opus 5 (1M context) noreply@anthropic.com