Issue #24257: Fixed incorrect uses of PyObject_IsInstance().
Fixed segmentation fault in sqlite3.Row constructor with faked cursor type.
Fixed system error in the comparison of faked types.SimpleNamespace.
diff --git a/Lib/sqlite3/test/factory.py b/Lib/sqlite3/test/factory.py
index 98dcae5..a8348b4 100644
--- a/Lib/sqlite3/test/factory.py
+++ b/Lib/sqlite3/test/factory.py
@@ -162,6 +162,14 @@
self.assertEqual(list(reversed(row)), list(reversed(as_tuple)))
self.assertIsInstance(row, Sequence)
+ def CheckFakeCursorClass(self):
+ # Issue #24257: Incorrect use of PyObject_IsInstance() caused
+ # segmentation fault.
+ class FakeCursor(str):
+ __class__ = sqlite.Cursor
+ cur = self.con.cursor(factory=FakeCursor)
+ self.assertRaises(TypeError, sqlite.Row, cur, ())
+
def tearDown(self):
self.con.close()