https://github.com/python/cpython/commit/04c837d9d8a474777ef9c1412fbba14f0682366c commit: 04c837d9d8a474777ef9c1412fbba14f0682366c branch: main author: Kira <[email protected]> committer: JelleZijlstra <[email protected]> date: 2024-09-28T15:15:43-07:00 summary:
gh-124442: make `__static_attributes__` deterministic by sorting (#124492) Signed-off-by: kp2pml30 <[email protected]> Co-authored-by: Jelle Zijlstra <[email protected]> Co-authored-by: Adam Turner <[email protected]> files: A Misc/NEWS.d/next/Core_and_Builtins/2024-09-25-11-53-22.gh-issue-124442.EXC1Ve.rst M Lib/test/test_compile.py M Python/compile.c diff --git a/Lib/test/test_compile.py b/Lib/test/test_compile.py index b81d847c824273..f7ef7a1c26f7bd 100644 --- a/Lib/test/test_compile.py +++ b/Lib/test/test_compile.py @@ -1,6 +1,7 @@ import contextlib import dis import io +import itertools import math import opcode import os @@ -2687,6 +2688,22 @@ def test_nested(self): self.compare_instructions(seq, [('LOAD_CONST', 1, 1, 0, 0, 0)]) self.compare_instructions(seq.get_nested()[0], [('LOAD_CONST', 2, 2, 0, 0, 0)]) + def test_static_attributes_are_sorted(self): + code = ( + 'class T:\n' + ' def __init__(self):\n' + ' self.{V1} = 10\n' + ' self.{V2} = 10\n' + ' def foo(self):\n' + ' self.{V3} = 10\n' + ) + attributes = ("a", "b", "c") + for perm in itertools.permutations(attributes): + var_names = {f'V{i + 1}': name for i, name in enumerate(perm)} + ns = run_code(code.format(**var_names)) + t = ns['T'] + self.assertEqual(t.__static_attributes__, attributes) + if __name__ == "__main__": unittest.main() diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2024-09-25-11-53-22.gh-issue-124442.EXC1Ve.rst b/Misc/NEWS.d/next/Core_and_Builtins/2024-09-25-11-53-22.gh-issue-124442.EXC1Ve.rst new file mode 100644 index 00000000000000..58e79f22ac0f90 --- /dev/null +++ b/Misc/NEWS.d/next/Core_and_Builtins/2024-09-25-11-53-22.gh-issue-124442.EXC1Ve.rst @@ -0,0 +1,2 @@ +Fix nondeterminism in compilation by sorting the value of +:attr:`~type.__static_attributes__`. Patch by kp2pml30. diff --git a/Python/compile.c b/Python/compile.c index 7b3e6f336e44b1..9826d3fbbde976 100644 --- a/Python/compile.c +++ b/Python/compile.c @@ -911,7 +911,17 @@ PyObject * _PyCompile_StaticAttributesAsTuple(compiler *c) { assert(c->u->u_static_attributes); - return PySequence_Tuple(c->u->u_static_attributes); + PyObject *static_attributes_unsorted = PySequence_List(c->u->u_static_attributes); + if (static_attributes_unsorted == NULL) { + return NULL; + } + if (PyList_Sort(static_attributes_unsorted) != 0) { + Py_DECREF(static_attributes_unsorted); + return NULL; + } + PyObject *static_attributes = PySequence_Tuple(static_attributes_unsorted); + Py_DECREF(static_attributes_unsorted); + return static_attributes; } int _______________________________________________ Python-checkins mailing list -- [email protected] To unsubscribe send an email to [email protected] https://mail.python.org/mailman3/lists/python-checkins.python.org/ Member address: [email protected]
