Issue #13201: equality for range objects is now based on equality of the underlying sequences. Thanks Sven Marnach for the patch.
diff --git a/Lib/test/test_range.py b/Lib/test/test_range.py
index ede0791..6035e76 100644
--- a/Lib/test/test_range.py
+++ b/Lib/test/test_range.py
@@ -507,6 +507,58 @@
for k in values - {0}:
r[i:j:k]
+ def test_comparison(self):
+ test_ranges = [range(0), range(0, -1), range(1, 1, 3),
+ range(1), range(5, 6), range(5, 6, 2),
+ range(5, 7, 2), range(2), range(0, 4, 2),
+ range(0, 5, 2), range(0, 6, 2)]
+ test_tuples = list(map(tuple, test_ranges))
+
+ # Check that equality of ranges matches equality of the corresponding
+ # tuples for each pair from the test lists above.
+ ranges_eq = [a == b for a in test_ranges for b in test_ranges]
+ tuples_eq = [a == b for a in test_tuples for b in test_tuples]
+ self.assertEqual(ranges_eq, tuples_eq)
+
+ # Check that != correctly gives the logical negation of ==
+ ranges_ne = [a != b for a in test_ranges for b in test_ranges]
+ self.assertEqual(ranges_ne, [not x for x in ranges_eq])
+
+ # Equal ranges should have equal hashes.
+ for a in test_ranges:
+ for b in test_ranges:
+ if a == b:
+ self.assertEqual(hash(a), hash(b))
+
+ # Ranges are unequal to other types (even sequence types)
+ self.assertIs(range(0) == (), False)
+ self.assertIs(() == range(0), False)
+ self.assertIs(range(2) == [0, 1], False)
+
+ # Huge integers aren't a problem.
+ self.assertEqual(range(0, 2**100 - 1, 2),
+ range(0, 2**100, 2))
+ self.assertEqual(hash(range(0, 2**100 - 1, 2)),
+ hash(range(0, 2**100, 2)))
+ self.assertNotEqual(range(0, 2**100, 2),
+ range(0, 2**100 + 1, 2))
+ self.assertEqual(range(2**200, 2**201 - 2**99, 2**100),
+ range(2**200, 2**201, 2**100))
+ self.assertEqual(hash(range(2**200, 2**201 - 2**99, 2**100)),
+ hash(range(2**200, 2**201, 2**100)))
+ self.assertNotEqual(range(2**200, 2**201, 2**100),
+ range(2**200, 2**201 + 1, 2**100))
+
+ # Order comparisons are not implemented for ranges.
+ with self.assertRaises(TypeError):
+ range(0) < range(0)
+ with self.assertRaises(TypeError):
+ range(0) > range(0)
+ with self.assertRaises(TypeError):
+ range(0) <= range(0)
+ with self.assertRaises(TypeError):
+ range(0) >= range(0)
+
def test_main():
test.support.run_unittest(RangeTest)