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Accept None as start and stop parameters for list.index() and tuple.index()

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Closes #13340.
This commit is contained in:
Petri Lehtinen 2011-11-05 23:20:57 +02:00
parent 4e6bf41934
commit c2f0a46111
5 changed files with 39 additions and 7 deletions
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7
Lib/test/list_tests.py
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@ -365,6 +365,13 @@ class CommonTest(seq_tests.CommonTest):
self.assertEqual(u.index(0, 3), 3)
self.assertEqual(u.index(0, 3, 4), 3)
self.assertRaises(ValueError, u.index, 2, 0, -10)
self.assertEqual(u.index(1, None), 4)
self.assertEqual(u.index(1, None, None), 4)
self.assertEqual(u.index(1, 0, None), 4)
self.assertEqual(u.index(1, None, 6), 4)
self.assertRaises(ValueError, u.index, -1, 3)
self.assertRaises(ValueError, u.index, -1, 3, None)
self.assertRaises(ValueError, u.index, 1, None, 4)
self.assertRaises(TypeError, u.index)