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  3. gc.DEBUG_SAVEALL

Python gc 模块，DEBUG_SAVEALL 实例源码

我们从Python开源项目中，提取了以下12个代码示例，用于说明如何使用gc.DEBUG_SAVEALL。

项目：zippy    作者：securesystemslab    | 项目源码 | 文件源码 
def test_saveall(self):
        # Verify that cyclic garbage like lists show up in gc.garbage if the
        # SAVEALL option is enabled.

        # First make sure we don't save away other stuff that just happens to
        # be waiting for collection.
        gc.collect()
        # if this fails, someone else created immortal trash
        self.assertEqual(gc.garbage, [])

        L = []
        L.append(L)
        id_L = id(L)

        debug = gc.get_debug()
        gc.set_debug(debug | gc.DEBUG_SAVEALL)
        del L
        gc.collect()
        gc.set_debug(debug)

        self.assertEqual(len(gc.garbage), 1)
        obj = gc.garbage.pop()
        self.assertEqual(id(obj), id_L)
项目：oil    作者：oilshell    | 项目源码 | 文件源码 
def test_saveall(self):
        # Verify that cyclic garbage like lists show up in gc.garbage if the
        # SAVEALL option is enabled.

        # First make sure we don't save away other stuff that just happens to
        # be waiting for collection.
        gc.collect()
        # if this fails, someone else created immortal trash
        self.assertEqual(gc.garbage, [])

        L = []
        L.append(L)
        id_L = id(L)

        debug = gc.get_debug()
        gc.set_debug(debug | gc.DEBUG_SAVEALL)
        del L
        gc.collect()
        gc.set_debug(debug)

        self.assertEqual(len(gc.garbage), 1)
        obj = gc.garbage.pop()
        self.assertEqual(id(obj), id_L)
项目：python2-tracer    作者：extremecoders-re    | 项目源码 | 文件源码 
def test_saveall(self):
        # Verify that cyclic garbage like lists show up in gc.garbage if the
        # SAVEALL option is enabled.

        # First make sure we don't save away other stuff that just happens to
        # be waiting for collection.
        gc.collect()
        # if this fails, someone else created immortal trash
        self.assertEqual(gc.garbage, [])

        L = []
        L.append(L)
        id_L = id(L)

        debug = gc.get_debug()
        gc.set_debug(debug | gc.DEBUG_SAVEALL)
        del L
        gc.collect()
        gc.set_debug(debug)

        self.assertEqual(len(gc.garbage), 1)
        obj = gc.garbage.pop()
        self.assertEqual(id(obj), id_L)
项目：web_ctp    作者：molebot    | 项目源码 | 文件源码 
def test_saveall(self):
        # Verify that cyclic garbage like lists show up in gc.garbage if the
        # SAVEALL option is enabled.

        # First make sure we don't save away other stuff that just happens to
        # be waiting for collection.
        gc.collect()
        # if this fails, someone else created immortal trash
        self.assertEqual(gc.garbage, [])

        L = []
        L.append(L)
        id_L = id(L)

        debug = gc.get_debug()
        gc.set_debug(debug | gc.DEBUG_SAVEALL)
        del L
        gc.collect()
        gc.set_debug(debug)

        self.assertEqual(len(gc.garbage), 1)
        obj = gc.garbage.pop()
        self.assertEqual(id(obj), id_L)
项目：pefile.pypy    作者：cloudtracer    | 项目源码 | 文件源码 
def test_saveall(self):
        # Verify that cyclic garbage like lists show up in gc.garbage if the
        # SAVEALL option is enabled.

        # First make sure we don't save away other stuff that just happens to
        # be waiting for collection.
        gc.collect()
        # if this fails, someone else created immortal trash
        self.assertEqual(gc.garbage, [])

        L = []
        L.append(L)
        id_L = id(L)

        debug = gc.get_debug()
        gc.set_debug(debug | gc.DEBUG_SAVEALL)
        del L
        gc.collect()
        gc.set_debug(debug)

        self.assertEqual(len(gc.garbage), 1)
        obj = gc.garbage.pop()
        self.assertEqual(id(obj), id_L)
项目：ouroboros    作者：pybee    | 项目源码 | 文件源码 
def test_saveall(self):
        # Verify that cyclic garbage like lists show up in gc.garbage if the
        # SAVEALL option is enabled.

        # First make sure we don't save away other stuff that just happens to
        # be waiting for collection.
        gc.collect()
        # if this fails, someone else created immortal trash
        self.assertEqual(gc.garbage, [])

        L = []
        L.append(L)
        id_L = id(L)

        debug = gc.get_debug()
        gc.set_debug(debug | gc.DEBUG_SAVEALL)
        del L
        gc.collect()
        gc.set_debug(debug)

        self.assertEqual(len(gc.garbage), 1)
        obj = gc.garbage.pop()
        self.assertEqual(id(obj), id_L)
项目：ndk-python    作者：gittor    | 项目源码 | 文件源码 
def test_saveall(self):
        # Verify that cyclic garbage like lists show up in gc.garbage if the
        # SAVEALL option is enabled.

        # First make sure we don't save away other stuff that just happens to
        # be waiting for collection.
        gc.collect()
        # if this fails, someone else created immortal trash
        self.assertEqual(gc.garbage, [])

        L = []
        L.append(L)
        id_L = id(L)

        debug = gc.get_debug()
        gc.set_debug(debug | gc.DEBUG_SAVEALL)
        del L
        gc.collect()
        gc.set_debug(debug)

        self.assertEqual(len(gc.garbage), 1)
        obj = gc.garbage.pop()
        self.assertEqual(id(obj), id_L)
项目：kbe_server    作者：xiaohaoppy    | 项目源码 | 文件源码 
def test_saveall(self):
        # Verify that cyclic garbage like lists show up in gc.garbage if the
        # SAVEALL option is enabled.

        # First make sure we don't save away other stuff that just happens to
        # be waiting for collection.
        gc.collect()
        # if this fails, someone else created immortal trash
        self.assertEqual(gc.garbage, [])

        L = []
        L.append(L)
        id_L = id(L)

        debug = gc.get_debug()
        gc.set_debug(debug | gc.DEBUG_SAVEALL)
        del L
        gc.collect()
        gc.set_debug(debug)

        self.assertEqual(len(gc.garbage), 1)
        obj = gc.garbage.pop()
        self.assertEqual(id(obj), id_L)
项目：zippy    作者：securesystemslab    | 项目源码 | 文件源码 
def test_garbage_at_shutdown(self):
        import subprocess
        code = """if 1:
            import gc
            class X:
                def __init__(self, name):
                    self.name = name
                def __repr__(self):
                    return "<X %%r>" %% self.name
                def __del__(self):
                    pass

            x = X('first')
            x.x = x
            x.y = X('second')
            del x
            gc.set_debug(%s)
        """
        def run_command(code):
            p = subprocess.Popen([sys.executable, "-Wd", "-c", code],
                stdout=subprocess.PIPE,
                stderr=subprocess.PIPE)
            stdout, stderr = p.communicate()
            p.stdout.close()
            p.stderr.close()
            self.assertEqual(p.returncode, 0)
            self.assertEqual(stdout.strip(), b"")
            return strip_python_stderr(stderr)

        stderr = run_command(code % "0")
        self.assertIn(b"ResourceWarning: gc: 2 uncollectable objects at "
                      b"shutdown; use", stderr)
        self.assertNotIn(b"<X 'first'>", stderr)
        # With DEBUG_UNCOLLECTABLE, the garbage list gets printed
        stderr = run_command(code % "gc.DEBUG_UNCOLLECTABLE")
        self.assertIn(b"ResourceWarning: gc: 2 uncollectable objects at "
                      b"shutdown", stderr)
        self.assertTrue(
            (b"[<X 'first'>, <X 'second'>]" in stderr) or
            (b"[<X 'second'>, <X 'first'>]" in stderr), stderr)
        # With DEBUG_SAVEALL, no additional message should get printed
        # (because gc.garbage also contains normally reclaimable cyclic
        # references, and its elements get printed at runtime anyway).
        stderr = run_command(code % "gc.DEBUG_SAVEALL")
        self.assertNotIn(b"uncollectable objects at shutdown", stderr)
项目：web_ctp    作者：molebot    | 项目源码 | 文件源码 
def test_garbage_at_shutdown(self):
        import subprocess
        code = """if 1:
            import gc
            class X:
                def __init__(self, name):
                    self.name = name
                def __repr__(self):
                    return "<X %%r>" %% self.name
                def __del__(self):
                    pass

            x = X('first')
            x.x = x
            x.y = X('second')
            del x
            gc.set_debug(%s)
        """
        def run_command(code):
            p = subprocess.Popen([sys.executable, "-Wd", "-c", code],
                stdout=subprocess.PIPE,
                stderr=subprocess.PIPE)
            stdout, stderr = p.communicate()
            p.stdout.close()
            p.stderr.close()
            self.assertEqual(p.returncode, 0)
            self.assertEqual(stdout.strip(), b"")
            return strip_python_stderr(stderr)

        stderr = run_command(code % "0")
        self.assertIn(b"ResourceWarning: gc: 2 uncollectable objects at "
                      b"shutdown; use", stderr)
        self.assertNotIn(b"<X 'first'>", stderr)
        # With DEBUG_UNCOLLECTABLE, the garbage list gets printed
        stderr = run_command(code % "gc.DEBUG_UNCOLLECTABLE")
        self.assertIn(b"ResourceWarning: gc: 2 uncollectable objects at "
                      b"shutdown", stderr)
        self.assertTrue(
            (b"[<X 'first'>, <X 'second'>]" in stderr) or
            (b"[<X 'second'>, <X 'first'>]" in stderr), stderr)
        # With DEBUG_SAVEALL, no additional message should get printed
        # (because gc.garbage also contains normally reclaimable cyclic
        # references, and its elements get printed at runtime anyway).
        stderr = run_command(code % "gc.DEBUG_SAVEALL")
        self.assertNotIn(b"uncollectable objects at shutdown", stderr)
项目：ouroboros    作者：pybee    | 项目源码 | 文件源码 
def test_garbage_at_shutdown(self):
        import subprocess
        code = """if 1:
            import gc
            import _testcapi
            @_testcapi.with_tp_del
            class X:
                def __init__(self, name):
                    self.name = name
                def __repr__(self):
                    return "<X %%r>" %% self.name
                def __tp_del__(self):
                    pass

            x = X('first')
            x.x = x
            x.y = X('second')
            del x
            gc.set_debug(%s)
        """
        def run_command(code):
            p = subprocess.Popen([sys.executable, "-Wd", "-c", code],
                stdout=subprocess.PIPE,
                stderr=subprocess.PIPE)
            stdout, stderr = p.communicate()
            p.stdout.close()
            p.stderr.close()
            self.assertEqual(p.returncode, 0)
            self.assertEqual(stdout.strip(), b"")
            return strip_python_stderr(stderr)

        stderr = run_command(code % "0")
        self.assertIn(b"ResourceWarning: gc: 2 uncollectable objects at "
                      b"shutdown; use", stderr)
        self.assertNotIn(b"<X 'first'>", stderr)
        # With DEBUG_UNCOLLECTABLE, the garbage list gets printed
        stderr = run_command(code % "gc.DEBUG_UNCOLLECTABLE")
        self.assertIn(b"ResourceWarning: gc: 2 uncollectable objects at "
                      b"shutdown", stderr)
        self.assertTrue(
            (b"[<X 'first'>, <X 'second'>]" in stderr) or
            (b"[<X 'second'>, <X 'first'>]" in stderr), stderr)
        # With DEBUG_SAVEALL, no additional message should get printed
        # (because gc.garbage also contains normally reclaimable cyclic
        # references, and its elements get printed at runtime anyway).
        stderr = run_command(code % "gc.DEBUG_SAVEALL")
        self.assertNotIn(b"uncollectable objects at shutdown", stderr)
项目：kbe_server    作者：xiaohaoppy    | 项目源码 | 文件源码 
def test_garbage_at_shutdown(self):
        import subprocess
        code = """if 1:
            import gc
            import _testcapi
            @_testcapi.with_tp_del
            class X:
                def __init__(self, name):
                    self.name = name
                def __repr__(self):
                    return "<X %%r>" %% self.name
                def __tp_del__(self):
                    pass

            x = X('first')
            x.x = x
            x.y = X('second')
            del x
            gc.set_debug(%s)
        """
        def run_command(code):
            p = subprocess.Popen([sys.executable, "-Wd", "-c", code],
                stdout=subprocess.PIPE,
                stderr=subprocess.PIPE)
            stdout, stderr = p.communicate()
            p.stdout.close()
            p.stderr.close()
            self.assertEqual(p.returncode, 0)
            self.assertEqual(stdout.strip(), b"")
            return strip_python_stderr(stderr)

        stderr = run_command(code % "0")
        self.assertIn(b"ResourceWarning: gc: 2 uncollectable objects at "
                      b"shutdown; use", stderr)
        self.assertNotIn(b"<X 'first'>", stderr)
        # With DEBUG_UNCOLLECTABLE, the garbage list gets printed
        stderr = run_command(code % "gc.DEBUG_UNCOLLECTABLE")
        self.assertIn(b"ResourceWarning: gc: 2 uncollectable objects at "
                      b"shutdown", stderr)
        self.assertTrue(
            (b"[<X 'first'>, <X 'second'>]" in stderr) or
            (b"[<X 'second'>, <X 'first'>]" in stderr), stderr)
        # With DEBUG_SAVEALL, no additional message should get printed
        # (because gc.garbage also contains normally reclaimable cyclic
        # references, and its elements get printed at runtime anyway).
        stderr = run_command(code % "gc.DEBUG_SAVEALL")
        self.assertNotIn(b"uncollectable objects at shutdown", stderr)