Sourced from pytest-mock's releases.

v3.15.1

2025-09-16

• #529: Fixed itertools._tee object has no attribute error -- now duplicate_iterators=True must be passed to mocker.spy to duplicate iterators.

Sourced from pytest-mock's changelog.

3.15.1

2025-09-16

• [#529](https://github.com/pytest-dev/pytest-mock/issues/529) <https://github.com/pytest-dev/pytest-mock/issues/529>_: Fixed itertools._tee object has no attribute error -- now duplicate_iterators=True must be passed to mocker.spy to duplicate iterators.

3.15.0

2025-09-04

• Python 3.8 (EOL) is no longer supported.
• [#524](https://github.com/pytest-dev/pytest-mock/issues/524) <https://github.com/pytest-dev/pytest-mock/pull/524>_: Added spy_return_iter to mocker.spy, which contains a duplicate of the return value of the spied method if it is an Iterator.

3.14.1 (2025-05-26)

• [#503](https://github.com/pytest-dev/pytest-mock/issues/503) <https://github.com/pytest-dev/pytest-mock/pull/503>_: Python 3.14 is now officially supported.

3.14.0 (2024-03-21)

• [#415](https://github.com/pytest-dev/pytest-mock/issues/415) <https://github.com/pytest-dev/pytest-mock/pull/415>_: MockType and AsyncMockType can be imported from pytest_mock for type annotation purposes.

• [#420](https://github.com/pytest-dev/pytest-mock/issues/420) <https://github.com/pytest-dev/pytest-mock/issues/420>_: Fixed a regression which would cause mocker.patch.object to not being properly cleared between tests.

3.13.0 (2024-03-21)

• [#417](https://github.com/pytest-dev/pytest-mock/issues/417) <https://github.com/pytest-dev/pytest-mock/pull/417>_: spy now has spy_return_list, which is a list containing all the values returned by the spied function.
• pytest-mock now requires pytest>=6.2.5.
• [#410](https://github.com/pytest-dev/pytest-mock/issues/410) <https://github.com/pytest-dev/pytest-mock/pull/410>: pytest-mock's setup.py file is removed. If you relied on this file, e.g. to install pytest using setup.py install, please see Why you shouldn't invoke setup.py directly <https://blog.ganssle.io/articles/2021/10/setup-py-deprecated.html#summary> for alternatives.

3.12.0 (2023-10-19)

• Added support for Python 3.12.
• Dropped support for EOL Python 3.7.
• mocker.resetall() now also resets mocks created by mocker.create_autospec ([#390](https://github.com/pytest-dev/pytest-mock/issues/390)_).

.. _#390: pytest-dev/pytest-mock#390

3.11.1 (2023-06-15)

(This release source code is identical to 3.11.0 except a small internal fix to deployment/CI)

... (truncated)

• e1b5c62 Release 3.15.1
• 184eb19 Set spy_return_iter only when explicitly requested (#537)
• 4fa0088 [pre-commit.ci] pre-commit autoupdate (#536)
• f5aff33 Fix test failure with pytest 8+ and verbose mode (#535)
• adc4187 Bump actions/setup-python from 5 to 6 in the github-actions group (#533)
• 95ad570 [pre-commit.ci] pre-commit autoupdate (#532)
• e696bf0 Fix standalone mock support (#531)
• 5b29b03 Fix gen-release-notes script
• 7d22ef4 Merge pull request #528 from pytest-dev/release-3.15.0
• 90b29f8 Update CHANGELOG for 3.15.0
• Additional commits viewable in compare view

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