#4170: Fix segfault when pickling a defauldict object.
The 2.x dict.iteritems() returns an iterator,
whereas the 3.0 dict.items() returns a "view",
which is iterable, but not an iterator with its __next__ method.
Patch by Hirokazu Yamamoto.
diff --git a/Lib/test/test_defaultdict.py b/Lib/test/test_defaultdict.py
index 49519ab..00bd9dc 100644
--- a/Lib/test/test_defaultdict.py
+++ b/Lib/test/test_defaultdict.py
@@ -2,6 +2,7 @@
import os
import copy
+import pickle
import tempfile
import unittest
from test import support
@@ -164,6 +165,13 @@
finally:
os.remove(tfn)
+ def test_pickleing(self):
+ d = defaultdict(int)
+ d[1]
+ for proto in range(pickle.HIGHEST_PROTOCOL + 1):
+ s = pickle.dumps(d, proto)
+ o = pickle.loads(s)
+ self.assertEqual(d, o)
def test_main():
support.run_unittest(TestDefaultDict)