Christian Heimes <[email protected]> added the comment:
I got more debug symbols:
python.js:235 Uncaught RuntimeError: null function or function signature
mismatch
at _PyEval_EvalFrameDefault (ceval.c:4247)
at _PyEval_EvalFrame (pycore_ceval.h:48)
at gen_send_ex2 (genobject.c:219)
at gen_iternext (genobject.c:583)
at builtin_any (bltinmodule.c:384)
at cfunction_vectorcall_O (methodobject.c:516)
at _PyObject_VectorcallTstate.11 (pycore_call.h:89)
at PyObject_Vectorcall (call.c:298)
at _PyEval_EvalFrameDefault (ceval.c:4625)
at _PyEval_EvalFrame.1 (pycore_ceval.h:48)
The culprit is
PyObject *next = (*Py_TYPE(iter)->tp_iternext)(iter);
in the TARGET(FOR_ITER) target. An additional NULL check resolves the problem.
index 953876f6226..390400b3246 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -4244,7 +4244,12 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate,
InterpreterFrame *frame, int thr
PREDICTED(FOR_ITER);
/* before: [iter]; after: [iter, iter()] *or* [] */
PyObject *iter = TOP();
- PyObject *next = (*Py_TYPE(iter)->tp_iternext)(iter);
+ PyObject *(*iternext)(PyObject *) = *Py_TYPE(iter)->tp_iternext;
+ if (iternext == NULL) {
+ PyErr_BadInternalCall();
+ goto error;
+ }
+ PyObject *next = iternext(iter);
if (next != NULL) {
PUSH(next);
PREDICT(STORE_FAST);
----------
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Python tracker <[email protected]>
<https://bugs.python.org/issue46009>
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