bpo-40792: Make the result of PyNumber_Index() always having exact type int. (GH-20443)
Previously, the result could have been an instance of a subclass of int.
Also revert bpo-26202 and make attributes start, stop and step of the range
object having exact type int.
Add private function _PyNumber_Index() which preserves the old behavior
of PyNumber_Index() for performance to use it in the conversion functions
like PyLong_AsLong().
diff --git a/Lib/test/test_copy.py b/Lib/test/test_copy.py
index 35f72fb..ba3d233 100644
--- a/Lib/test/test_copy.py
+++ b/Lib/test/test_copy.py
@@ -357,7 +357,7 @@
pass
tests = [None, 42, 2**100, 3.14, True, False, 1j,
"hello", "hello\u1234", f.__code__,
- NewStyle, Classic, max, property()]
+ NewStyle, range(10), Classic, max, property()]
for x in tests:
self.assertIs(copy.deepcopy(x), x)
@@ -579,17 +579,6 @@
self.assertIsNot(y, x)
self.assertIs(y.foo, y)
- def test_deepcopy_range(self):
- class I(int):
- pass
- x = range(I(10))
- y = copy.deepcopy(x)
- self.assertIsNot(y, x)
- self.assertEqual(y, x)
- self.assertIsNot(y.stop, x.stop)
- self.assertEqual(y.stop, x.stop)
- self.assertIsInstance(y.stop, I)
-
# _reconstruct()
def test_reconstruct_string(self):