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SF bug #1242657: list(obj) can swallow KeyboardInterrupt

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Fix over-aggressive PyErr_Clear().  The same code fragment appears in
various guises in list.extend(), map(), filter(), zip(), and internally
in PySequence_Tuple().
This commit is contained in:
Raymond Hettinger 2005-08-21 11:03:59 +00:00
parent b285974c00
commit a710b331da
4 changed files with 31 additions and 0 deletions
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9
Lib/test/list_tests.py
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@ -514,3 +514,12 @@ class CommonTest(seq_tests.CommonTest):
a = self.type2test(range(10))
a[::2] = tuple(range(5))
self.assertEqual(a, self.type2test([0, 1, 1, 3, 2, 5, 3, 7, 4, 9]))
def test_constructor_exception_handling(self):
# Bug #1242657
class F(object):
def __iter__(self):
yield 23
def __len__(self):
raise KeyboardInterrupt
self.assertRaises(KeyboardInterrupt, list, F())