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[3.13] gh-126303: Fix pickling and copying of os.sched_param objects (GH-126336) (GH-126423)

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(cherry picked from commit d3840503b0)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
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Miss Islington (bot) 2024-11-05 07:50:33 +01:00 • committed by GitHub
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commit ce1a1a6021
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21
Lib/test/test_posix.py
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@ -6,12 +6,14 @@
from test.support import warnings_helper
from test.support.script_helper import assert_python_ok
import copy
import errno
import sys
import signal
import time
import os
import platform
import pickle
import stat
import tempfile
import unittest
@ -1317,6 +1319,25 @@ def test_get_and_set_scheduler_and_param(self):
param = posix.sched_param(sched_priority=-large)
self.assertRaises(OverflowError, posix.sched_setparam, 0, param)
@requires_sched
def test_sched_param(self):
param = posix.sched_param(1)
for proto in range(pickle.HIGHEST_PROTOCOL+1):
newparam = pickle.loads(pickle.dumps(param, proto))
self.assertEqual(newparam, param)
newparam = copy.copy(param)
self.assertIsNot(newparam, param)
self.assertEqual(newparam, param)
newparam = copy.deepcopy(param)
self.assertIsNot(newparam, param)
self.assertEqual(newparam, param)
newparam = copy.replace(param)
self.assertIsNot(newparam, param)
self.assertEqual(newparam, param)
newparam = copy.replace(param, sched_priority=0)
self.assertNotEqual(newparam, param)
self.assertEqual(newparam.sched_priority, 0)
@unittest.skipUnless(hasattr(posix, "sched_rr_get_interval"), "no function")
def test_sched_rr_get_interval(self):
try: