diff options
Diffstat (limited to 'Lib')
| -rw-r--r-- | Lib/copy.py | 4 | ||||
| -rw-r--r-- | Lib/test/test_copy.py | 9 |
2 files changed, 11 insertions, 2 deletions
diff --git a/Lib/copy.py b/Lib/copy.py index bb8840ed54..f0fb443777 100644 --- a/Lib/copy.py +++ b/Lib/copy.py @@ -281,7 +281,7 @@ def _reconstruct(x, info, deep, memo=None): if n > 2: state = info[2] else: - state = {} + state = None if n > 3: listiter = info[3] else: @@ -295,7 +295,7 @@ def _reconstruct(x, info, deep, memo=None): y = callable(*args) memo[id(x)] = y - if state: + if state is not None: if deep: state = deepcopy(state, memo) if hasattr(y, '__setstate__'): diff --git a/Lib/test/test_copy.py b/Lib/test/test_copy.py index eb8d18cf0b..0c5354c65c 100644 --- a/Lib/test/test_copy.py +++ b/Lib/test/test_copy.py @@ -180,6 +180,9 @@ class TestCopy(unittest.TestCase): return self.foo == other.foo x = C(42) self.assertEqual(copy.copy(x), x) + # State with boolean value is false (issue #25718) + x = C(0.0) + self.assertEqual(copy.copy(x), x) # The deepcopy() method @@ -448,6 +451,12 @@ class TestCopy(unittest.TestCase): self.assertEqual(y, x) self.assertIsNot(y, x) self.assertIsNot(y.foo, x.foo) + # State with boolean value is false (issue #25718) + x = C([]) + y = copy.deepcopy(x) + self.assertEqual(y, x) + self.assertIsNot(y, x) + self.assertIsNot(y.foo, x.foo) def test_deepcopy_reflexive_inst(self): class C: |