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gh-119176: Add copy and clear to multiprocessing.ListProxy #119202

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gh-119176: Add copy and clear to multiprocessing.ListProxy #119202

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2 changes: 1 addition & 1 deletion Lib/multiprocessing/managers.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1155,7 +1155,7 @@ def set(self, value):
'__add__', '__contains__', '__delitem__', '__getitem__', '__len__',
'__mul__', '__reversed__', '__rmul__', '__setitem__',
'append', 'count', 'extend', 'index', 'insert', 'pop', 'remove',
'reverse', 'sort', '__imul__'
'reverse', 'sort', '__imul__', 'clear', 'copy',
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Wouldn't it be better to insert these two new strings between 'append' and 'count', to respect alphabetical order?

))
class ListProxy(BaseListProxy):
def __iadd__(self, value):
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7 changes: 7 additions & 0 deletions Lib/test/_test_multiprocessing.py
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Expand Up @@ -2314,6 +2314,13 @@ def test_list(self):
a.append('hello')
self.assertEqual(f[0][:], [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 'hello'])

e2 = e.copy()
self.assertEqual([element[:] for element in e],
[element[:] for element in e2])

e2.clear()
self.assertEqual(e2[:], [])

def test_list_iter(self):
a = self.list(list(range(10)))
it = iter(a)
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2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Library/2024-05-20-12-34-32.gh-issue-119176.I2Br-T.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
Add ``copy`` and ``clear`` methods support to
``multiprocessing.manager.ListProxy``.
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