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Fix __hash__ in functools.cmp_to_key() to work with collections.Hashable.

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This commit is contained in:
Raymond Hettinger 2011-05-03 11:01:32 -07:00
parent 5098d44354
commit 003be52932
3 changed files with 7 additions and 3 deletions
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5
Lib/test/test_functools.py
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@ -1,4 +1,5 @@
import functools
import collections
import sys
import unittest
from test import support
@ -446,7 +447,8 @@ class TestCmpToKey(unittest.TestCase):
return y - x
key = functools.cmp_to_key(mycmp)
k = key(10)
self.assertRaises(TypeError, hash(k))
self.assertRaises(TypeError, hash, k)
self.assertFalse(isinstance(k, collections.Hashable))
class TestTotalOrdering(unittest.TestCase):
@ -660,6 +662,7 @@ def test_main(verbose=None):
TestPythonPartial,
TestUpdateWrapper,
TestTotalOrdering,
TestCmpToKey,
TestWraps,
TestReduce,
TestLRU,