gh-129573: Fix possible abort from non-string suggestions in calculate_suggestions/_Py_CalculateSuggestions
#130997
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test_traceback is failing on the CI. |
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All commit authors signed the Contributor License Agreement. |
vstinner
reviewed
Apr 18, 2025
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@devdanzin: Tests are failing on your PR, and you didn't sign the CLA. What's the status of this PR? |
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I'm sorry, I've left this one fall behind. Would you like to take it over? I have signed the CLA and even contributed some trivial code, I'll wait to see if it's a CLA bot issue or my CLA status changed to unverified somehow. |
vstinner
reviewed
May 3, 2025
Lib/test/test_traceback.py
Outdated
| def test_suggestions_do_not_trigger_with_non_string_candidates(self): | ||
| def run_module_code(): | ||
| import runpy | ||
| runpy._run_module_code("blech", {0: "", "bluch": ""}, "") |
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Suggested change
| runpy._run_module_code("blech", {0: "", "bluch": ""}, "") | |
| # non-string global variable | |
| runpy._run_module_code("blech", {0: "", "bluch": ""}, "") |
vstinner
reviewed
Jun 4, 2025
| @@ -4740,6 +4740,13 @@ def test_suggestions_extension(self): | |||
| None | |||
| ) | |||
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| self.assertRaises( | |||
| TypeError, | |||
| _suggestions._generate_suggestions, | |||
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_suggestions._generate_suggestions() checks if all elements are strings before calling _Py_CalculateSuggestions(). So this test doesn't check changed code.
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This PR adds a simple check that suggestion candidates are strings in
calculate_suggestions(3.12)/_Py_CalculateSuggestions(main), avoiding an abort in debug builds from code like below:The abort only happens in 3.12, because the code in main checks for non-string candidates in
_suggestions__generate_suggestions_impl. However, since the affected code is still present in main, this PR is against that branch.In main, the code above exits the new REPL, which will be reported as a new issue with associated PR.
Found using fusil by @vstinner.
_PyUnicode_Equalfromcalculate_suggestionswith non-string candidate #129573