[Linux] Test failure with Python 3.12 beta1

[thesamesam]

Summary

• OS: Gentoo Linux
• Architecture: 64b-it amd64
• Psutil version: 5.9.5
• Python version: Python 3.12.0b1
• Type: tests

Description

I get the following single test failure with Python 3.12, while this test passes on pypy3.10 (beta)/py3.10/py3.11:

======================================================================
FAIL: psutil.tests.test_system.TestCpuAPIs.test_per_cpu_times
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/var/tmp/portage/dev-python/psutil-5.9.5/work/psutil-5.9.5/psutil/tests/test_system.py", line 393, in test_per_cpu_times
    self.assertEqual(total, sum(times))
AssertionError: 111881.49000000002 != 111881.49

I've not really got that far with debugging it because the noise from the changing values makes it difficult, but this reproduces it too w/ py3.12:

import psutil

def test_per_cpu_times():
        # Check type, value >= 0, str().
        for times in psutil.cpu_times(percpu=True):
                total = 0
                sum(times)
                for cp_time in times:
                        #assertIsInstance(cp_time, float)
                        print(cp_time)
                        assert cp_time >= 0.0
                        total += cp_time
                print(total)
                print(times)
                print(sum(times))
                assert total == sum(times)
                str(times)
        print(len(psutil.cpu_times(percpu=True)[0]))
        print(len(psutil.cpu_times(percpu=False)))
        assert len(psutil.cpu_times(percpu=True)[0]) == len(psutil.cpu_times(percpu=False))

test_per_cpu_times()