Python 3.13: Two tests from test_docstring.py are failing

[penguinpee]

Fedora is preparing for Python 3.13. Two tests are currently failing when imbalanced-learn is built with Python 3.13.0a5. Python is being updated as new pre-releases become available and packages are re-tested.

Error log:

=================================== FAILURES ===================================
_ test_docstring_inject[func-A function.\n\n    Parameters\n    ----------\n    xxx\n\n    yyy\n    ] _

obj = <function func at 0x7f092abffce0>
obj_docstring = 'A function.\n\n    Parameters\n    ----------\n    xxx\n\n    yyy\n    '

    @pytest.mark.parametrize(
        "obj, obj_docstring", [(func, func_docstring), (cls, cls_docstring)]
    )
    def test_docstring_inject(obj, obj_docstring):
        obj_injected_docstring = Substitution(param_1="xxx", param_2="yyy")(obj)
>       assert obj_injected_docstring.__doc__ == obj_docstring
E       AssertionError: assert 'A function.\n\nParameters\n----------\nxxx\n\nyyy\n' == 'A function.\n\n    Parameters\n    ----------\n    xxx\n\n    yyy\n    '
E           A function.
E           
E         -     Parameters
E         ? ----
E         + Parameters
E         -     ----------
E         ? ----
E         + ----------
E         -     xxx
E         + xxx
E           
E         + yyy
E         -     yyy
E         -

imblearn/utils/tests/test_docstring.py:63: AssertionError
_ test_docstring_inject[cls-A class.\n\n    Parameters\n    ----------\n    xxx\n\n    yyy\n    ] _

obj = <class 'imblearn.utils.tests.test_docstring.cls'>
obj_docstring = 'A class.\n\n    Parameters\n    ----------\n    xxx\n\n    yyy\n    '

    @pytest.mark.parametrize(
        "obj, obj_docstring", [(func, func_docstring), (cls, cls_docstring)]
    )
    def test_docstring_inject(obj, obj_docstring):
        obj_injected_docstring = Substitution(param_1="xxx", param_2="yyy")(obj)
>       assert obj_injected_docstring.__doc__ == obj_docstring
E       AssertionError: assert 'A class.\n\nParameters\n----------\nxxx\n\nyyy\n' == 'A class.\n\n    Parameters\n    ----------\n    xxx\n\n    yyy\n    '
E           A class.
E           
E         -     Parameters
E         ? ----
E         + Parameters
E         -     ----------
E         ? ----
E         + ----------
E         -     xxx
E         + xxx
E           
E         + yyy
E         -     yyy
E         -

imblearn/utils/tests/test_docstring.py:63: AssertionError

[penguinpee]

This is most likely due to:

Compiler now strip indents from docstrings. This will reduce the size of bytecode cache (e.g. .pyc file). For example, cache file size for sqlalchemy.orm.session in SQLAlchemy 2.0 is reduced by about 5%. This change will affect tools using docstrings, like doctest. (Contributed by Inada Naoki in gh-81283.)

as documented in the release notes.

[glemaitre]

Thanks. We probably want to have our tests insensitive to this particular behaviour. I'll make a fix for that.