dlib fails to build with Python 3.14.0b1.

___________________ test_regression_issue_1220_get_face_chip ___________________

    @pytest.mark.skipif(not utils.is_numpy_installed(), reason="requires numpy")
    def test_regression_issue_1220_get_face_chip():
        """
        Memory leak in Python get_face_chip
        https://github.com/davisking/dlib/issues/1220
        """
        face_chip = get_test_face_chip()
        # we expect two references:
        # 1.) the local variable
        # 2.) the temporary passed to getrefcount
>       assert sys.getrefcount(face_chip) == 2
E       assert 1 == 2
E        +  where 1 = <built-in function getrefcount>(array([[[ 83,  57,  31],\n        [ 83,  58,  31],\n        [ 83,  57,  32],\n        ...,\n        [ 42,  15,   6],\n        [118,  84,  55],\n        [  0,   0,   0]],\n\n       [[ 75,  54,  32],\n        [ 76,  54,  30],\n        [ 77,  54,  29],\n        ...,\n        [ 87,  57,  35],\n        [135,  97,  64],\n        [  0,   0,   0]],\n\n       [[ 60,  44,  28],\n        [ 60,  45,  28],\n        [ 64,  46,  27],\n        ...,\n        [103,  72,  41],\n        [142, 104,  64],\n        [  0,   0,   0]],\n\n       ...,\n\n       [[  0,   0,   0],\n        [  0,   0,   0],\n        [  0,   0,   0],\n        ...,\n        [ 30,  32,  44],\n        [ 33,  35,  47],\n        [ 35,  37,  49]],\n\n       [[  0,   0,   0],\n        [  0,   0,   0],\n        [  0,   0,   0],\n        ...,\n        [ 26,  28,  40],\n        [ 31,  33,  45],\n        [ 34,  36,  48]],\n\n       [[  0,   0,   0],\n        [  0,   0,   0],\n        [  0,   0,   0],\n        ...,\n        [ 23,  25,  37],\n        [ 27,  29,  41],\n        [ 30,  32,  44]]], shape=(150, 150, 3), dtype=uint8))
E        +    where <built-in function getrefcount> = sys.getrefcount

tools/python/test/test_numpy_returns.py:59: AssertionError
__________________ test_regression_issue_1220_get_face_chips ___________________

    @pytest.mark.skipif(not utils.is_numpy_installed(), reason="requires numpy")
    def test_regression_issue_1220_get_face_chips():
        """
        Memory leak in Python get_face_chip
        https://github.com/davisking/dlib/issues/1220
        """
        face_chips = get_test_face_chips()
        count = sys.getrefcount(face_chips)
>       assert count == 2
E       assert 1 == 2

tools/python/test/test_numpy_returns.py:70: AssertionError
=========================== short test summary info ============================
FAILED tools/python/test/test_numpy_returns.py::test_regression_issue_1220_get_face_chip
FAILED tools/python/test/test_numpy_returns.py::test_regression_issue_1220_get_face_chips

https://docs.python.org/3.14/whatsnew/3.14.html

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.14-b1/fedora-rawhide-x86_64/09028513-dlib/

For all our attempts to build dlib with Python 3.14, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.14-b1/package/dlib/

Testing and mass rebuild of packages is happening in copr.
You can follow these instructions to test locally in mock if your package builds with Python 3.14:
https://copr.fedorainfracloud.org/coprs/g/python/python3.14-b1/

Let us know here if you have any questions.

Python 3.14 is planned to be included in Fedora 43.
To make that update smoother, we're building Fedora packages with all pre-releases of Python 3.14.
A build failure prevents us from testing all dependent packages (transitive [Build]Requires),
so if this package is required a lot, it's important for us to get it fixed soon.

We'd appreciate help from the people who know this package best,
but if you don't want to work on this now, let us know so we can try to work around it on our side.