Issue #22995: Instances of extension types with a state that aren't
subclasses of list or dict and haven't implemented any pickle-related
methods (__reduce__, __reduce_ex__, __getnewargs__, __getnewargs_ex__,
or __getstate__), can no longer be pickled. Including memoryview.
diff --git a/Lib/test/test_buffer.py b/Lib/test/test_buffer.py
index a02c5f7..ccfd1e9 100644
--- a/Lib/test/test_buffer.py
+++ b/Lib/test/test_buffer.py
@@ -4,6 +4,8 @@
"""
+import copy
+import pickle
import sys
import unittest
from test import test_support
@@ -35,6 +37,17 @@
buf = buffer(data, sys.maxsize, sys.maxsize)
self.assertEqual(buf[:4096], "")
+ def test_copy(self):
+ buf = buffer(b'abc')
+ with self.assertRaises(TypeError):
+ copy.copy(buf)
+
+ def test_pickle(self):
+ buf = buffer(b'abc')
+ for proto in range(pickle.HIGHEST_PROTOCOL + 1):
+ with self.assertRaises(TypeError):
+ pickle.dumps(buf, proto)
+
def test_main():
with test_support.check_py3k_warnings(("buffer.. not supported",
diff --git a/Lib/test/test_csv.py b/Lib/test/test_csv.py
index e2eec70..181af99 100644
--- a/Lib/test/test_csv.py
+++ b/Lib/test/test_csv.py
@@ -2,6 +2,7 @@
# Copyright (C) 2001,2002 Python Software Foundation
# csv package unit tests
+import copy
import sys
import os
import unittest
@@ -10,6 +11,7 @@
import csv
import gc
import io
+import pickle
from test import test_support
class Test_Csv(unittest.TestCase):
@@ -466,6 +468,17 @@
self.assertRaises(TypeError, csv.reader, [], quoting = -1)
self.assertRaises(TypeError, csv.reader, [], quoting = 100)
+ def test_copy(self):
+ for name in csv.list_dialects():
+ dialect = csv.get_dialect(name)
+ self.assertRaises(TypeError, copy.copy, dialect)
+
+ def test_pickle(self):
+ for name in csv.list_dialects():
+ dialect = csv.get_dialect(name)
+ for proto in range(pickle.HIGHEST_PROTOCOL + 1):
+ self.assertRaises(TypeError, pickle.dumps, dialect, proto)
+
class TestCsvBase(unittest.TestCase):
def readerAssertEqual(self, input, expected_result):
fd, name = tempfile.mkstemp()
diff --git a/Lib/test/test_memoryview.py b/Lib/test/test_memoryview.py
index f14bafd..bc83247 100644
--- a/Lib/test/test_memoryview.py
+++ b/Lib/test/test_memoryview.py
@@ -10,6 +10,8 @@
import array
from test import test_support
import io
+import copy
+import pickle
class AbstractMemoryTests:
@@ -354,6 +356,19 @@
#pass
+class OtherTest(unittest.TestCase):
+ def test_copy(self):
+ m = memoryview(b'abc')
+ with self.assertRaises(TypeError):
+ copy.copy(m)
+
+ def test_pickle(self):
+ m = memoryview(b'abc')
+ for proto in range(pickle.HIGHEST_PROTOCOL + 1):
+ with self.assertRaises(TypeError):
+ pickle.dumps(m, proto)
+
+
def test_main():
test_support.run_unittest(__name__)