diff --git a/Lib/test/test_asyncio/test_futures.py b/Lib/test/test_asyncio/test_futures.py index 56b0b864de2ddf..2184b2091f84ee 100644 --- a/Lib/test/test_asyncio/test_futures.py +++ b/Lib/test/test_asyncio/test_futures.py @@ -612,6 +612,8 @@ def test_future_iter_throw(self): Exception, Exception("elephant"), 32) self.assertRaises(TypeError, fi.throw, Exception("elephant"), Exception("elephant")) + # https://github.com/python/cpython/issues/101326 + self.assertRaises(ValueError, fi.throw, ValueError, None, None) self.assertRaises(TypeError, fi.throw, list) def test_future_del_collect(self): diff --git a/Misc/NEWS.d/next/Library/2023-01-25-18-07-20.gh-issue-101326.KL4SFv.rst b/Misc/NEWS.d/next/Library/2023-01-25-18-07-20.gh-issue-101326.KL4SFv.rst new file mode 100644 index 00000000000000..54b69b9430910d --- /dev/null +++ b/Misc/NEWS.d/next/Library/2023-01-25-18-07-20.gh-issue-101326.KL4SFv.rst @@ -0,0 +1 @@ +Fix regression when passing ``None`` as second or third argument to ``FutureIter.throw``. diff --git a/Modules/_asynciomodule.c b/Modules/_asynciomodule.c index 6fe4ca46947526..055dded05431df 100644 --- a/Modules/_asynciomodule.c +++ b/Modules/_asynciomodule.c @@ -1694,7 +1694,12 @@ FutureIter_throw(futureiterobject *self, PyObject *const *args, Py_ssize_t nargs val = args[1]; } - if (tb != NULL && !PyTraceBack_Check(tb)) { + if (val == Py_None) { + val = NULL; + } + if (tb == Py_None ) { + tb = NULL; + } else if (tb != NULL && !PyTraceBack_Check(tb)) { PyErr_SetString(PyExc_TypeError, "throw() third argument must be a traceback"); return NULL; }