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Merged revisions 58211-58220 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk ........ r58211 | facundo.batista | 2007-09-19 19:53:25 +0200 (Wed, 19 Sep 2007) | 4 lines Issue #1772851. Optimization of __hash__ to behave better for big big numbers. ........ r58216 | raymond.hettinger | 2007-09-20 05:03:43 +0200 (Thu, 20 Sep 2007) | 1 line Fit nits ........ r58217 | georg.brandl | 2007-09-20 10:44:59 +0200 (Thu, 20 Sep 2007) | 2 lines alternate -> alternative. ........ r58218 | georg.brandl | 2007-09-20 18:06:07 +0200 (Thu, 20 Sep 2007) | 2 lines Patch #1541463: optimize performance of cgi.FieldStorage operations. ........ r58219 | georg.brandl | 2007-09-20 18:45:27 +0200 (Thu, 20 Sep 2007) | 2 lines #1176: document that string methods don't take keyword args. ........ r58220 | thomas.wouters | 2007-09-20 19:35:10 +0200 (Thu, 20 Sep 2007) | 4 lines Try harder to stay within the 79-column limit. There's still two places that go (way) over, but those are harder to fix without suffering in readability. ........
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8 changed files with 117 additions and 61 deletions
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@ -901,6 +901,38 @@ class DecimalUsabilityTest(unittest.TestCase):
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def test_hash_method(self):
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#just that it's hashable
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hash(Decimal(23))
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test_values = [Decimal(sign*(2**m + n))
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for m in [0, 14, 15, 16, 17, 30, 31,
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32, 33, 62, 63, 64, 65, 66]
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for n in range(-10, 10)
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for sign in [-1, 1]]
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test_values.extend([
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Decimal("-0"), # zeros
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Decimal("0.00"),
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Decimal("-0.000"),
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Decimal("0E10"),
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Decimal("-0E12"),
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Decimal("10.0"), # negative exponent
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Decimal("-23.00000"),
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Decimal("1230E100"), # positive exponent
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Decimal("-4.5678E50"),
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# a value for which hash(n) != hash(n % (2**64-1))
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# in Python pre-2.6
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Decimal(2**64 + 2**32 - 1),
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# selection of values which fail with the old (before
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# version 2.6) long.__hash__
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Decimal("1.634E100"),
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Decimal("90.697E100"),
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Decimal("188.83E100"),
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Decimal("1652.9E100"),
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Decimal("56531E100"),
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])
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# check that hash(d) == hash(int(d)) for integral values
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for value in test_values:
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self.assertEqual(hash(value), hash(int(value)))
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#the same hash that to an int
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self.assertEqual(hash(Decimal(23)), hash(23))
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self.assertRaises(TypeError, hash, Decimal('NaN'))
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