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Issue #25455: Fixed a crash in repr of ElementTree.Element with recursive tag.

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This commit is contained in:
Serhiy Storchaka 2016-06-12 09:47:20 +03:00
commit f0ee5ccd19
3 changed files with 25 additions and 4 deletions
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8
Lib/test/test_xml_etree.py
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@ -18,7 +18,7 @@ import weakref
from itertools import product
from test import support
from test.support import TESTFN, findfile, import_fresh_module, gc_collect
from test.support import TESTFN, findfile, import_fresh_module, gc_collect, swap_attr
# pyET is the pure-Python implementation.
#
@ -1864,6 +1864,12 @@ class BadElementTest(ElementTestCase, unittest.TestCase):
e.extend([ET.Element('bar')])
self.assertRaises(ValueError, e.remove, X('baz'))
def test_recursive_repr(self):
# Issue #25455
e = ET.Element('foo')
with swap_attr(e, 'tag', e):
with self.assertRaises(RuntimeError):
repr(e) # Should not crash
class MutatingElementPath(str):
def __new__(cls, elem, *args):