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authorRaymond Hettinger <python@rcn.com>2009-02-02 22:55:09 (GMT)
committerRaymond Hettinger <python@rcn.com>2009-02-02 22:55:09 (GMT)
commite8364233aea88cf68e8f54a515dce10160ead35b (patch)
treebbe6369d9536d20602676c097b8c60ce8fa325a0 /Objects/listobject.c
parent9f9892648f954e45a628113febb524261075db32 (diff)
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Issue 1242657: list(obj) can swallow KeyboardInterrupt.
Diffstat (limited to 'Objects/listobject.c')
-rw-r--r--Objects/listobject.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/Objects/listobject.c b/Objects/listobject.c
index b834363..2bab4ef 100644
--- a/Objects/listobject.c
+++ b/Objects/listobject.c
@@ -802,6 +802,10 @@ listextend(PyListObject *self, PyObject *b)
/* Guess a result list size. */
n = _PyObject_LengthHint(b, 8);
+ if (n == -1) {
+ Py_DECREF(it);
+ return NULL;
+ }
m = Py_SIZE(self);
mn = m + n;
if (mn >= m) {