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-rw-r--r--Lib/test/test_pep380.py19
-rw-r--r--Misc/NEWS3
-rw-r--r--Python/ceval.c2
3 files changed, 23 insertions, 1 deletions
diff --git a/Lib/test/test_pep380.py b/Lib/test/test_pep380.py
index 4a43b7d..69194df 100644
--- a/Lib/test/test_pep380.py
+++ b/Lib/test/test_pep380.py
@@ -993,6 +993,25 @@ class TestPEP380Operation(unittest.TestCase):
del inner_gen
gc_collect()
+ def test_send_tuple_with_custom_generator(self):
+ # See issue #21209.
+ class MyGen:
+ def __iter__(self):
+ return self
+ def __next__(self):
+ return 42
+ def send(self, what):
+ nonlocal v
+ v = what
+ return None
+ def outer():
+ v = yield from MyGen()
+ g = outer()
+ next(g)
+ v = None
+ g.send((1, 2, 3, 4))
+ self.assertEqual(v, (1, 2, 3, 4))
+
def test_main():
from test import support
diff --git a/Misc/NEWS b/Misc/NEWS
index 6fc6e2f..6e14968 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,9 @@ Release date: TBA
Core and Builtins
-----------------
+- Issue #21209: Fix sending tuples to custom generator objects with the yield
+ from syntax.
+
- Issue #21134: Fix segfault when str is called on an uninitialized
UnicodeEncodeError, UnicodeDecodeError, or UnicodeTranslateError object.
diff --git a/Python/ceval.c b/Python/ceval.c
index 5db88be..1cc3c94 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -1902,7 +1902,7 @@ PyEval_EvalFrameEx(PyFrameObject *f, int throwflag)
if (v == Py_None)
retval = Py_TYPE(reciever)->tp_iternext(reciever);
else
- retval = _PyObject_CallMethodId(reciever, &PyId_send, "O", v);
+ retval = _PyObject_CallMethodIdObjArgs(reciever, &PyId_send, v, NULL);
}
Py_DECREF(v);
if (retval == NULL) {