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GH-91153: Handle mutating __index__ methods in bytearray item assignment (GH-94891)

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(cherry picked from commit f36589510b)

Co-authored-by: Brandt Bucher <brandtbucher@microsoft.com>
This commit is contained in:
Miss Islington (bot) 2022-07-19 10:12:39 -07:00 • committed by GitHub
parent d2be44230e
commit 9487e8d250
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4 changed files with 60 additions and 11 deletions
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17
Lib/test/test_bytes.py
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@ -1710,6 +1710,23 @@ class ByteArrayTest(BaseBytesTest, unittest.TestCase):
self.assertEqual(b1, b)
self.assertEqual(b3, b'xcxcxc')
def test_mutating_index(self):
class Boom:
def __index__(self):
b.clear()
return 0
with self.subTest("tp_as_mapping"):
b = bytearray(b'Now you see me...')
with self.assertRaises(IndexError):
b[0] = Boom()
with self.subTest("tp_as_sequence"):
_testcapi = import_helper.import_module('_testcapi')
b = bytearray(b'Now you see me...')
with self.assertRaises(IndexError):
_testcapi.sequence_setitem(b, 0, Boom())
class AssortedBytesTest(unittest.TestCase):
#