bpo-43916: Apply Py_TPFLAGS_DISALLOW_INSTANTIATION to selected types (GH-25748)
Apply Py_TPFLAGS_DISALLOW_INSTANTIATION to the following types:
* _dbm.dbm
* _gdbm.gdbm
* _multibytecodec.MultibyteCodec
* _sre..SRE_Scanner
* _thread._localdummy
* _thread.lock
* _winapi.Overlapped
* array.arrayiterator
* functools.KeyWrapper
* functools._lru_list_elem
* pyexpat.xmlparser
* re.Match
* re.Pattern
* unicodedata.UCD
* zlib.Compress
* zlib.Decompress
diff --git a/Lib/test/test_array.py b/Lib/test/test_array.py
index 11184ad..b18467f 100644
--- a/Lib/test/test_array.py
+++ b/Lib/test/test_array.py
@@ -41,6 +41,12 @@ def test_bad_constructor(self):
self.assertRaises(ValueError, array.array, 'x')
@support.cpython_only
+ def test_disallow_instantiation(self):
+ # Ensure that the type disallows instantiation (bpo-43916)
+ tp = type(iter(array.array('I')))
+ self.assertRaises(TypeError, tp)
+
+ @support.cpython_only
def test_immutable(self):
# bpo-43908: check that array.array is immutable
with self.assertRaises(TypeError):