Message320679
Relevant code (Objects/listobject.c lines 2268 -- 2286 as of commit e76ac9d):
/* Choose the best compare, given what we now know about the keys. */
if (keys_are_all_same_type) {
if (key_type == &PyUnicode_Type && strings_are_latin) {
ms.key_compare = unsafe_latin_compare;
}
else if (key_type == &PyLong_Type && ints_are_bounded) {
ms.key_compare = unsafe_long_compare;
}
else if (key_type == &PyFloat_Type) {
ms.key_compare = unsafe_float_compare;
}
else if ((ms.key_richcompare = key_type->tp_richcompare) != NULL) {
ms.key_compare = unsafe_object_compare;
}
}
else {
ms.key_compare = safe_object_compare;
}
Clearly, ms.key_compare is not assigned here if keys_are_all_same_type is true but key_type->tp_richcompare is NULL.
I don't know how to obtain an object with ob_type->tp_richcompare being NULL, though. |
|
Date |
User |
Action |
Args |
2018-06-28 17:43:06 | johnchen902 | set | recipients:
+ johnchen902 |
2018-06-28 17:43:06 | johnchen902 | set | messageid: <1530207786.09.0.56676864532.issue33989@psf.upfronthosting.co.za> |
2018-06-28 17:43:06 | johnchen902 | link | issue33989 messages |
2018-06-28 17:43:05 | johnchen902 | create | |
|