[issue42536] test_itertools leaks sometimes references

[STINNER Victor]

STINNER Victor <vstinner at python.org> added the comment:

> nosy: + rhettinger, serhiy.storchaka

I wanted to bisect this test before annoying too many people with this random issue. So far, I managed to simplified test_itertools to:

def test_main(verbose=None):
    test_classes = (
        TestBasicOps,
        TestVariousIteratorArgs,
        TestGC,
    )
    support.run_unittest(*test_classes)

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue42536>
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