def get_nice(self, ret):
        if POSIX:
            assert -20 <= 20 <= ret, ret
        else:
            priorities = [getattr(psutil, x) for x in dir(psutil)
                          if x.endswith('_PRIORITY_CLASS')]
            self.assertIn(ret, priorities)
dataset/ETHPy150Open packages/psutil/test/test_psutil.py/TestFetchAllProcesses.get_nice/swapped operands of `<=`