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Added optional None arguments to itertools.islice().

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Raymond Hettinger 2004-12-05 09:25:51 +00:00
parent d2f70cbe8e
commit b2594050ea
4 changed files with 27 additions and 14 deletions
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2
Lib/test/test_itertools.py
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@ -260,6 +260,8 @@ class TestBasicOps(unittest.TestCase):
# Test stop=None
self.assertEqual(list(islice(xrange(10), None)), range(10))
self.assertEqual(list(islice(xrange(10), None, None)), range(10))
self.assertEqual(list(islice(xrange(10), None, None, None)), range(10))
self.assertEqual(list(islice(xrange(10), 2, None)), range(2, 10))
self.assertEqual(list(islice(xrange(10), 1, None, 2)), range(1, 10, 2))