Python 3.13 failure with unittest.makeSuite

[bdice]

Checklist

• I added a descriptive title
• I searched open reports and couldn't find a duplicate

What happened?

conda-forge/pycosat-feedstock#34 is failing because of a function unittest.makeSuite that was deprecated in Python 3.11 and removed in Python 3.13.

pycosat/test_pycosat.py

Line 261 in ba33b47

suite.addTest(unittest.makeSuite(cls))

This can be replaced with unittest.defaultTestLoader.loadTestsFromTestCase.

This is a patch that I verified is working:

diff --git a/test_pycosat.py b/test_pycosat.py
index f1165d8..0a6969c 100644
--- a/test_pycosat.py
+++ b/test_pycosat.py
@@ -258,7 +258,7 @@ def run(verbosity=1, repeat=1):
     suite = unittest.TestSuite()
     for cls in tests:
         for _ in range(repeat):
-            suite.addTest(unittest.makeSuite(cls))
+            suite.addTest(unittest.defaultTestLoader.loadTestsFromTestCase(cls))
 
     runner = unittest.TextTestRunner(verbosity=verbosity)
     return runner.run(suite)

unittest.defaultTestLoader.loadTestsFromTestCase appears to be backwards compatible as far back as Python 2.7, so there's no loss in compatibility from changing.

Additional Context

No response