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Remove unnecessary traceback save/restore pair.

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This commit is contained in:
Raymond Hettinger 2008-03-19 22:47:48 +00:00
parent 27f60a65e8
commit c71d2a9afd
1 changed files with 2 additions and 4 deletions
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6
Objects/abstract.c
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@ -2907,22 +2907,20 @@ int
PyObject_IsInstance(PyObject *inst, PyObject *cls) PyObject_IsInstance(PyObject *inst, PyObject *cls)
{ {
static PyObject *name = NULL; static PyObject *name = NULL;
PyObject *t, *v, *tb;
PyObject *checker; PyObject *checker;
/* Quick test for an exact match */ /* Quick test for an exact match */
if (Py_TYPE(inst) == (PyTypeObject *)cls) if (Py_TYPE(inst) == (PyTypeObject *)cls)
return 1; return 1;
PyErr_Fetch(&t, &v, &tb);
if (name == NULL) { if (name == NULL) {
name = PyString_InternFromString("__instancecheck__"); name = PyString_InternFromString("__instancecheck__");
if (name == NULL) if (name == NULL)
return -1; return -1;
} }
checker = PyObject_GetAttr(cls, name); checker = PyObject_GetAttr(cls, name);
PyErr_Restore(t, v, tb); if (checker == NULL && PyErr_Occurred())
PyErr_Clear();
if (checker != NULL) { if (checker != NULL) {
PyObject *res; PyObject *res;
int ok = -1; int ok = -1;