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  r71627 | benjamin.peterson | 2009-04-15 16:26:36 -0500 (Wed, 15 Apr 2009) | 4 lines

  call __float__ on str subclasses #5759

  tests by R. David Murray
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This commit is contained in:
Benjamin Peterson 2009-04-15 21:34:27 +00:00
parent 50a1469557
commit 2808d3c418
3 changed files with 12 additions and 1 deletions
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7
Lib/test/test_float.py
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@ -78,11 +78,18 @@ class GeneralFloatCases(unittest.TestCase):
def __float__(self):
return 42
# Issue 5759: __float__ not called on str subclasses (though it is on
# unicode subclasses).
class FooStr(str):
def __float__(self):
return float(str(self)) + 1
self.assertAlmostEqual(float(Foo0()), 42.)
self.assertAlmostEqual(float(Foo1()), 42.)
self.assertAlmostEqual(float(Foo2()), 42.)
self.assertAlmostEqual(float(Foo3(21)), 42.)
self.assertRaises(TypeError, float, Foo4(42))
self.assertAlmostEqual(float(FooStr('8')), 9.)
def test_floatasratio(self):
for f, ratio in [