Mercurial > cpython-lru_cache-weakref
diff Python/errors.c @ 52711:7e86fa255fc2 legacy-trunk
In PyErr_GivenExceptionMatches, temporarily bump the recursion
limit, so that in the most common case PyObject_IsSubclass will
not raise a recursion error we have to ignore anyway.
| author | Georg Brandl <georg@python.org> |
|---|---|
| date | Thu, 02 Apr 2009 02:47:44 +0000 |
| parents | d01c1d768841 |
| children | 54b2cd21ab46 |
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--- a/Python/errors.c Thu Apr 02 02:44:54 2009 +0000 +++ b/Python/errors.c Thu Apr 02 02:47:44 2009 +0000 @@ -106,10 +106,16 @@ err = PyExceptionInstance_Class(err); if (PyExceptionClass_Check(err) && PyExceptionClass_Check(exc)) { - int res = 0; + int res = 0, reclimit; PyObject *exception, *value, *tb; PyErr_Fetch(&exception, &value, &tb); + /* Temporarily bump the recursion limit, so that in the most + common case PyObject_IsSubclass will not raise a recursion + error we have to ignore anyway. */ + reclimit = Py_GetRecursionLimit(); + Py_SetRecursionLimit(reclimit + 5); res = PyObject_IsSubclass(err, exc); + Py_SetRecursionLimit(reclimit); /* This function must not fail, so print the error here */ if (res == -1) { PyErr_WriteUnraisable(err);