Issue #2482: Make sure that the coefficient of a Decimal instance
is stored as a str instance rather than a unicode instance. Backported from Python 2.6 (see r61904).
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@ -549,17 +549,17 @@ class Decimal(object):
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fracpart = m.group('frac')
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exp = int(m.group('exp') or '0')
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if fracpart is not None:
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self._int = (intpart+fracpart).lstrip('0') or '0'
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self._int = str((intpart+fracpart).lstrip('0') or '0')
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self._exp = exp - len(fracpart)
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else:
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self._int = intpart.lstrip('0') or '0'
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self._int = str(intpart.lstrip('0') or '0')
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self._exp = exp
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self._is_special = False
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else:
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diag = m.group('diag')
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if diag is not None:
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# NaN
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self._int = diag.lstrip('0')
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self._int = str(diag.lstrip('0'))
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if m.group('signal'):
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self._exp = 'N'
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else:
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@ -429,6 +429,12 @@ class DecimalExplicitConstructionTest(unittest.TestCase):
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#just not a number
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self.assertEqual(str(Decimal('ugly')), 'NaN')
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#unicode strings should be permitted
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self.assertEqual(str(Decimal(u'0E-017')), '0E-17')
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self.assertEqual(str(Decimal(u'45')), '45')
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self.assertEqual(str(Decimal(u'-Inf')), '-Infinity')
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self.assertEqual(str(Decimal(u'NaN123')), 'NaN123')
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def test_explicit_from_tuples(self):
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#zero
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@ -1032,6 +1038,16 @@ class DecimalUsabilityTest(unittest.TestCase):
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self.assertEqual(str(d), '15.32') # str
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self.assertEqual(repr(d), 'Decimal("15.32")') # repr
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# result type of string methods should be str, not unicode
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unicode_inputs = [u'123.4', u'0.5E2', u'Infinity', u'sNaN',
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u'-0.0E100', u'-NaN001', u'-Inf']
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for u in unicode_inputs:
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d = Decimal(u)
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self.assertEqual(type(str(d)), str)
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self.assertEqual(type(repr(d)), str)
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self.assertEqual(type(d.to_eng_string()), str)
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def test_tonum_methods(self):
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#Test float, int and long methods.
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@ -27,6 +27,11 @@ Core and builtins
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Library
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-------
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- Issue #2482: Make sure that the coefficient of a Decimal is always
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stored as a str instance, not as a unicode instance. This ensures
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that str(Decimal) is always an instance of str. This fixes a
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regression from Python 2.5.1 to Python 2.5.2.
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- Issue #2478: fix failure of decimal.Decimal(0).sqrt()
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- Issue #2432: give DictReader the dialect and line_num attributes
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