Mercurial > cpython-lru_cache-weakref

diff Python/ceval.c @ 12110:92ec78e217d2 legacy-trunk

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eval_code2(): In the extended calling syntax opcodes, you must check the return value of PySequence_Length(). If an exception occurred, the returned length will be -1. Make sure this doesn't get obscurred, and that the bogus length isn't used.
author Barry Warsaw <barry@python.org>
date Wed, 29 Mar 2000 18:30:03 +0000
parents 603db0d0aed1
children e2b02d40a142
line wrap: on
line diff
--- a/Python/ceval.c	Wed Mar 29 16:02:45 2000 +0000
+++ b/Python/ceval.c	Wed Mar 29 18:30:03 2000 +0000
@@ -1636,6 +1636,14 @@
 				break;
 			    }
 			    nstar = PySequence_Length(stararg);
+			    if (nstar < 0) {
+				    if (!PyErr_Occurred)
+					    PyErr_SetString(
+						    PyExc_TypeError,
+						    "len() of unsized object");
+				    x = NULL;
+				    break;
+			    }
 			}
 			if (nk > 0) {
 			    if (kwdict == NULL) {