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-rw-r--r--Lib/test/test_int.py8
1 files changed, 8 insertions, 0 deletions
diff --git a/Lib/test/test_int.py b/Lib/test/test_int.py
index 854117efd7..c048b712da 100644
--- a/Lib/test/test_int.py
+++ b/Lib/test/test_int.py
@@ -508,5 +508,13 @@ class IntTestCases(unittest.TestCase):
check('123\ud800')
check('123\ud800', 10)
+ def test_issue31619(self):
+ self.assertEqual(int('1_0_1_0_1_0_1_0_1_0_1_0_1_0_1_0_1_0_1_0_1_0_1_0_1_0_1_0_1_0_1', 2),
+ 0b1010101010101010101010101010101)
+ self.assertEqual(int('1_2_3_4_5_6_7_0_1_2_3', 8), 0o12345670123)
+ self.assertEqual(int('1_2_3_4_5_6_7_8_9', 16), 0x123456789)
+ self.assertEqual(int('1_2_3_4_5_6_7', 32), 1144132807)
+
+
if __name__ == "__main__":
unittest.main()