unittest mock with __new__ function lead to TypeError

Bug report

Bug description:

import unittest
from unittest.mock import patch

class Summary(object):

    def __init__(self, path):
        print("Summary init")

    def __del__(self):
        print("Summary del")

    def get_summary(self):
        print("get_summary")

class MockSummary:
    def __init__(self, path):
        print("Mock start")

    def __del__(self):
        print("Mock end")

    def get_summary(self):
        print("mock_get_summary")

class TestSummary(unittest.TestCase):

    def setUp(self):
        pass

    def tearDown(self):
        pass

    def test_summary(self):
        # 1 success case
        summary1 = Summary('path')
        summary1.get_summary()

        # 2 mock case
        mock = patch.object(Summary, '__new__', return_value=MockSummary('path'))
        mock.start()
        summary2 = Summary('path')
        summary2.get_summary()
        mock.stop()

        # 3 fail case
        summary3 = Summary('path')
        summary3.get_summary()

if __name__ == '__main__':
    unittest.main()

When run this python unittest file, it turns out with error:

Summary init
get_summary
Mock start
mock_get_summary
ESummary del

======================================================================
ERROR: test_summary (__main__.TestSummary.test_summary)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/admin/workspace/python/testSummaryAll.py", line 46, in test_summary
    summary3 = Summary('path')
               ^^^^^^^^^^^^^^^
TypeError: object.__new__() takes exactly one argument (the type to instantiate)

----------------------------------------------------------------------
Ran 1 test in 0.001s

FAILED (errors=1)
Mock end

All the instance init after the mock stop will be failed.

CPython versions tested on:

3.11

Operating systems tested on:

Linux

Commencez par la reproduction unittest fournie et examinez le comportement de unittest.mock.patch.object lors du patch de Summary.new. Reproduisez l’échec après mock.stop(), puis suivez la manière dont le comportement d’origine du constructeur est restauré. Le travail est terminé lorsque des instances peuvent être créées après l’arrêt du patch et que la régression est couverte par un test.