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Title: [3.14] gh-151626: Fix tests that fail when PYTHONPYCACHEPREFIX is set (GH-151952) by gpshead · Pull Request #152744 · python/cpython · GitHub

Open Graph Title: [3.14] gh-151626: Fix tests that fail when PYTHONPYCACHEPREFIX is set (GH-151952) by gpshead · Pull Request #152744 · python/cpython

X Title: [3.14] gh-151626: Fix tests that fail when PYTHONPYCACHEPREFIX is set (GH-151952) by gpshead · Pull Request #152744 · python/cpython

Description: Fix tests in test_compileall, test_import, test_importlib, test_py_compile, and test_inspect to neutralize PYTHONPYCACHEPREFIX (cherry picked from commit 564c58c) Co-authored-by: Jiucheng(Oliver) git.jiucheng@gmail.com Issue: gh-151626 Manual backport notes (3.14) miss-islington could not cleanly backport this to 3.14 due to a conflict in Lib/test/test_inspect/test_inspect.py. The 3.14 branch predates the python -m inspect --details CLI test refactor that exists on main/3.15 (it still has the simpler TestMain.test_details rather than TestModuleCLI with the test_details_option_with_*/test_get_cli_details_for_* suite). The fix was translated to 3.14's dialect: The _expected_cached() helper was added verbatim from the original PR, in TestMain. It was applied to the single TestMain.test_details, replacing the environment-dependent module.__spec__.cached check. The redundant self.assertIn(module.__cached__, output) line (same pyc path, and itself failing under PYTHONPYCACHEPREFIX) was dropped. None of the main-only test machinery was pulled in. The other four files and the NEWS entry cherry-picked cleanly (identical hunks to the original). Verified: test_inspect, test_compileall, test_import, test_importlib, and test_py_compile all pass both normally and with PYTHONPYCACHEPREFIX set; make patchcheck is clean.

Open Graph Description: Fix tests in test_compileall, test_import, test_importlib, test_py_compile, and test_inspect to neutralize PYTHONPYCACHEPREFIX (cherry picked from commit 564c58c) Co-authored-by: Jiucheng(Oliver) g...

X Description: Fix tests in test_compileall, test_import, test_importlib, test_py_compile, and test_inspect to neutralize PYTHONPYCACHEPREFIX (cherry picked from commit 564c58c) Co-authored-by: Jiucheng(Oliver) g...

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ce33758 [3.14] gh-151626: Fix tests that fail when PYTHONPYCACHEPREFIX is set… zangjiucheng Jul 1, 2026 https://github.com/python/cpython/pull/152744/commits/ce3375851a06901ac642be157286173ececa463a
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