diff -ur transaction-3.0.1/setup.py transaction-3.0.1.sal/setup.py

--- transaction-3.0.1/setup.py	1970-01-01 01:00:00.000000000 +0100

+++ transaction-3.0.1.sal/setup.py	2022-04-21 09:55:53.338715279 +0200

@@ -25,7 +25,7 @@

 README = _read_file('README.rst') + '\n\n' + _read_file('CHANGES.rst')

-tests_require = ['mock']

+tests_require = ['unittest.mock']

 setup(name='transaction',

       version=version,

diff -ur transaction-3.0.1/src/transaction/tests/test__manager.py transaction-3.0.1.sal/src/transaction/tests/test__manager.py

--- transaction-3.0.1/src/transaction/tests/test__manager.py	1970-01-01 01:00:00.000000000 +0100

+++ transaction-3.0.1.sal/src/transaction/tests/test__manager.py	2022-04-21 09:56:53.648218742 +0200

@@ -11,7 +11,7 @@

 # FOR A PARTICULAR PURPOSE

 #

 ##############################################################################

-import mock

+import unittest.mock

 import unittest

 import zope.interface.verify

@@ -671,15 +671,15 @@

         # If a datamanager registers for synchonization after a

         # transaction has started, we should call newTransaction so it

         # can do necessry setup.

-        import mock

+        import unittest.mock

         from .. import TransactionManager

         manager = TransactionManager()

-        sync1 = mock.MagicMock()

+        sync1 = unittest.mock.MagicMock()

         manager.registerSynch(sync1)

         sync1.newTransaction.assert_not_called()

         t = manager.begin()

         sync1.newTransaction.assert_called_with(t)

-        sync2 = mock.MagicMock()

+        sync2 = unittest.mock.MagicMock()

         manager.registerSynch(sync2)

         sync2.newTransaction.assert_called_with(t)

@@ -746,8 +746,8 @@

     def test_sync_registration_thread_local_manager(self):

         import transaction

-        sync = mock.MagicMock()

-        sync2 = mock.MagicMock()

+        sync = unittest.mock.MagicMock()

+        sync2 = unittest.mock.MagicMock()

         self.assertFalse(transaction.manager.registeredSynchs())

         transaction.manager.registerSynch(sync)

         self.assertTrue(transaction.manager.registeredSynchs())

diff -ur transaction-3.0.1/src/transaction.egg-info/requires.txt transaction-3.0.1.sal/src/transaction.egg-info/requires.txt

--- transaction-3.0.1/src/transaction.egg-info/requires.txt	1970-01-01 01:00:00.000000000 +0100

+++ transaction-3.0.1.sal/src/transaction.egg-info/requires.txt	2022-04-21 09:56:25.300922162 +0200

@@ -5,9 +5,9 @@

 repoze.sphinx.autointerface

 [test]

-mock

+unittest.mock

 [testing]

 nose

 coverage

-mock

+unittest.mock