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Commit3492098

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miss-islingtonsobolevnpicnixz
authored
[3.13]gh-131670: Fix crash inanext() when__anext__ is sync and raises (GH-131682) (#131686)
gh-131670: Fix crash in `anext()` when `__anext__` is sync and raises (GH-131682)(cherry picked from commit929afd1)Co-authored-by: sobolevn <mail@sobolevn.me>Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
1 parent9f36dff commit3492098

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3 files changed

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‎Lib/test/test_asyncgen.py‎

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@@ -1169,6 +1169,26 @@ async def run():
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self.loop.run_until_complete(run())
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deftest_sync_anext_raises_exception(self):
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# See: https://github.com/python/cpython/issues/131670
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msg='custom'
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forexc_typein [
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StopAsyncIteration,
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StopIteration,
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ValueError,
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Exception,
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]:
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exc=exc_type(msg)
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withself.subTest(exc=exc):
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classA:
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def__anext__(self):
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raiseexc
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withself.assertRaisesRegex(exc_type,msg):
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anext(A())
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withself.assertRaisesRegex(exc_type,msg):
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anext(A(),1)
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deftest_async_gen_asyncio_anext_stopiteration(self):
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asyncdeffoo():
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try:
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@@ -0,0 +1 @@
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Fix:func:`anext` failing on sync:meth:`~object.__anext__` raising an exception.

‎Python/bltinmodule.c‎

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@@ -1737,6 +1737,9 @@ builtin_anext_impl(PyObject *module, PyObject *aiterator,
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}
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awaitable= (*t->tp_as_async->am_anext)(aiterator);
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if (awaitable==NULL) {
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returnNULL;
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}
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if (default_value==NULL) {
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returnawaitable;
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}

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