3.7.0: test suite uses outdated nose module

[kloczek]

nose is no longer maintained since 2016 https://github.com/nose-devs/nose/
Generally speaking nose is for python 2.x. I would recommend switch completely to pytest
https://docs.nose2.io/en/latest/differences.html

+ /usr/bin/pytest -ra
=========================================================================== test session starts ============================================================================
platform linux -- Python 3.8.11, pytest-6.2.4, py-1.10.0, pluggy-0.13.1
benchmark: 3.4.1 (defaults: timer=time.perf_counter disable_gc=False min_rounds=5 min_time=0.000005 max_time=1.0 calibration_precision=10 warmup=False warmup_iterations=100000)
Using --randomly-seed=4223722502
rootdir: /home/tkloczko/rpmbuild/BUILD/flaky-3.7.0
plugins: flaky-3.7.0, forked-1.3.0, shutil-1.7.0, virtualenv-1.7.0, expect-1.1.0, flake8-1.0.7, timeout-1.4.2, betamax-0.8.1, freezegun-0.4.2, aspectlib-1.5.2, toolbox-0.5, rerunfailures-9.1.1, requests-mock-1.9.3, cov-2.12.1, pyfakefs-4.5.0, benchmark-3.4.1, xdist-2.3.0, pylama-7.7.1, datadir-1.3.1, regressions-2.2.0, cases-3.6.3, xprocess-0.18.1, black-0.3.12, checkdocs-2.7.1, anyio-3.3.0, Faker-8.11.0, asyncio-0.15.1, trio-0.7.0, httpbin-1.0.0, subtests-0.5.0, isort-2.0.0, hypothesis-6.14.6, mock-3.6.1, profiling-1.7.0, randomly-3.8.0
collected 97 items / 2 errors / 95 selected

================================================================================== ERRORS ==================================================================================
________________________________________________________ ERROR collecting test/test_nose/test_flaky_nose_plugin.py _________________________________________________________
ImportError while importing test module '/home/tkloczko/rpmbuild/BUILD/flaky-3.7.0/test/test_nose/test_flaky_nose_plugin.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib64/python3.8/importlib/__init__.py:127: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
test/test_nose/test_flaky_nose_plugin.py:7: in <module>
    from flaky import defaults, flaky_nose_plugin
../../BUILDROOT/python-flaky-3.7.0-5.fc35.x86_64/usr/lib/python3.8/site-packages/flaky/flaky_nose_plugin.py:5: in <module>
    from nose.failure import Failure
E   ModuleNotFoundError: No module named 'nose'
___________________________________________________________ ERROR collecting test/test_nose/test_nose_example.py ___________________________________________________________
ImportError while importing test module '/home/tkloczko/rpmbuild/BUILD/flaky-3.7.0/test/test_nose/test_nose_example.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib64/python3.8/importlib/__init__.py:127: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
test/test_nose/test_nose_example.py:4: in <module>
    from nose.tools import raises
E   ModuleNotFoundError: No module named 'nose'
========================================================================= short test summary info ==========================================================================
ERROR test/test_nose/test_flaky_nose_plugin.py
ERROR test/test_nose/test_nose_example.py
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Interrupted: 2 errors during collection !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
============================================================================ 2 errors in 0.54s =======================================================================