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-rw-r--r--Lib/test/test_memoryview.py9
-rw-r--r--Misc/NEWS3
-rw-r--r--Objects/memoryobject.c7
3 files changed, 18 insertions, 1 deletions
diff --git a/Lib/test/test_memoryview.py b/Lib/test/test_memoryview.py
index abda678..3f82307 100644
--- a/Lib/test/test_memoryview.py
+++ b/Lib/test/test_memoryview.py
@@ -111,6 +111,15 @@ class AbstractMemoryTests:
m = None
self.assertEquals(sys.getrefcount(b), oldrefcount)
+ def test_delitem(self):
+ for tp in self._types:
+ b = tp(self._source)
+ m = self._view(b)
+ with self.assertRaises(TypeError):
+ del m[1]
+ with self.assertRaises(TypeError):
+ del m[1:4]
+
def test_tobytes(self):
for tp in self._types:
m = self._view(tp(self._source))
diff --git a/Misc/NEWS b/Misc/NEWS
index 4086378..e342ee8 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,9 @@ What's New in Python 3.1.3?
Core and Builtins
-----------------
+- Issue #9737: Fix a crash when trying to delete a slice or an item from
+ a memoryview object.
+
- Issue #7415: PyUnicode_FromEncodedObject() now uses the new buffer API
properly. Patch by Stefan Behnel.
diff --git a/Objects/memoryobject.c b/Objects/memoryobject.c
index d09c268..f5dacb0 100644
--- a/Objects/memoryobject.c
+++ b/Objects/memoryobject.c
@@ -179,7 +179,7 @@ _indirect_copy_nd(char *dest, Py_buffer *view, char fort)
int k;
Py_ssize_t elements;
char *ptr;
- void (*func)(int, Py_ssize_t *, Py_ssize_t *);
+ void (*func)(int, Py_ssize_t *, const Py_ssize_t *);
if (view->ndim > PY_SSIZE_T_MAX / sizeof(Py_ssize_t)) {
PyErr_NoMemory();
@@ -631,6 +631,11 @@ memory_ass_sub(PyMemoryViewObject *self, PyObject *key, PyObject *value)
"cannot modify read-only memory");
return -1;
}
+ if (value == NULL) {
+ PyErr_SetString(PyExc_TypeError,
+ "cannot delete memory");
+ return -1;
+ }
if (view->ndim != 1) {
PyErr_SetNone(PyExc_NotImplementedError);
return -1;