test_process.py 文件源码

def test_ppid(self):
        if hasattr(os, 'getppid'):
            self.assertEqual(psutil.Process().ppid(), os.getppid())
        this_parent = os.getpid()
        sproc = get_test_subprocess()
        p = psutil.Process(sproc.pid)
        self.assertEqual(p.ppid(), this_parent)
        self.assertEqual(p.parent().pid, this_parent)
        # no other process is supposed to have us as parent
        reap_children(recursive=True)
        if APPVEYOR:
            # Occasional failures, see:
            # https://ci.appveyor.com/project/giampaolo/psutil/build/
            #     job/0hs623nenj7w4m33
            return
        for p in psutil.process_iter():
            if p.pid == sproc.pid:
                continue
            # XXX: sometimes this fails on Windows; not sure why.
            self.assertNotEqual(p.ppid(), this_parent, msg=p)