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authorErlend Egeberg Aasland <erlend.aasland@innova.no>2021-04-30 14:04:57 (GMT)
committerGitHub <noreply@github.com>2021-04-30 14:04:57 (GMT)
commit9746cda705decebc0ba572d95612796afd06dcd4 (patch)
treed21d7082061099687919b8e744250bb39cf5613d /Lib/test/test_functools.py
parent387397f8a4244c983f4568c16a28842e3268fe5d (diff)
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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
Diffstat (limited to 'Lib/test/test_functools.py')
-rw-r--r--Lib/test/test_functools.py6
1 files changed, 6 insertions, 0 deletions
diff --git a/Lib/test/test_functools.py b/Lib/test/test_functools.py
index fba9281..3320ab7 100644
--- a/Lib/test/test_functools.py
+++ b/Lib/test/test_functools.py
@@ -948,6 +948,12 @@ class TestCmpToKeyC(TestCmpToKey, unittest.TestCase):
if c_functools:
cmp_to_key = c_functools.cmp_to_key
+ @support.cpython_only
+ def test_disallow_instantiation(self):
+ # Ensure that the type disallows instantiation (bpo-43916)
+ tp = type(c_functools.cmp_to_key(None))
+ self.assertRaises(TypeError, tp)
+
class TestCmpToKeyPy(TestCmpToKey, unittest.TestCase):
cmp_to_key = staticmethod(py_functools.cmp_to_key)