diff options
Diffstat (limited to 'Objects/object.c')
| -rw-r--r-- | Objects/object.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/Objects/object.c b/Objects/object.c index 0588fea..964c5c5 100644 --- a/Objects/object.c +++ b/Objects/object.c @@ -469,11 +469,14 @@ PyObject_IsTrue(v) int res; if (v == Py_None) res = 0; - else if (v->ob_type->tp_as_number != NULL) + else if (v->ob_type->tp_as_number != NULL && + v->ob_type->tp_as_number->nb_nonzero != NULL) res = (*v->ob_type->tp_as_number->nb_nonzero)(v); - else if (v->ob_type->tp_as_mapping != NULL) + else if (v->ob_type->tp_as_mapping != NULL && + v->ob_type->tp_as_mapping->mp_length != NULL) res = (*v->ob_type->tp_as_mapping->mp_length)(v); - else if (v->ob_type->tp_as_sequence != NULL) + else if (v->ob_type->tp_as_sequence != NULL && + v->ob_type->tp_as_sequence->sq_length != NULL) res = (*v->ob_type->tp_as_sequence->sq_length)(v); else res = 1; |