我们从Python开源项目中，提取了以下16个代码示例，用于说明如何使用pickle.APPENDS。
def test_list_chunking(self): n = 10 # too small to chunk x = list(range(n)) for proto in protocols: s = self.dumps(x, proto) y = self.loads(s) self.assertEqual(x, y) num_appends = count_opcode(pickle.APPENDS, s) self.assertEqual(num_appends, proto > 0) n = 2500 # expect at least two chunks when proto > 0 x = list(range(n)) for proto in protocols: s = self.dumps(x, proto) y = self.loads(s) self.assertEqual(x, y) num_appends = count_opcode(pickle.APPENDS, s) if proto == 0: self.assertEqual(num_appends, 0) else: self.assertTrue(num_appends >= 2)
def test_list_chunking(self): n = 10 # too small to chunk x = range(n) for proto in protocols: s = self.dumps(x, proto) y = self.loads(s) self.assertEqual(x, y) num_appends = count_opcode(pickle.APPENDS, s) self.assertEqual(num_appends, proto > 0) n = 2500 # expect at least two chunks when proto > 0 x = range(n) for proto in protocols: s = self.dumps(x, proto) y = self.loads(s) self.assertEqual(x, y) num_appends = count_opcode(pickle.APPENDS, s) if proto == 0: self.assertEqual(num_appends, 0) else: self.assertTrue(num_appends >= 2)
def test_list_chunking(self): n = 10 # too small to chunk x = list(range(n)) for proto in protocols: s = self.dumps(x, proto) y = self.loads(s) self.assert_is_copy(x, y) num_appends = count_opcode(pickle.APPENDS, s) self.assertEqual(num_appends, proto > 0) n = 2500 # expect at least two chunks when proto > 0 x = list(range(n)) for proto in protocols: s = self.dumps(x, proto) y = self.loads(s) self.assert_is_copy(x, y) num_appends = count_opcode(pickle.APPENDS, s) if proto == 0: self.assertEqual(num_appends, 0) else: self.assertTrue(num_appends >= 2)
def test_bad_stack(self): badpickles = [ '.', # STOP '0', # POP '1', # POP_MARK '2', # DUP # '(2', # PyUnpickler doesn't raise 'R', # REDUCE ')R', 'a', # APPEND 'Na', 'b', # BUILD 'Nb', 'd', # DICT 'e', # APPENDS # '(e', # PyUnpickler raises AttributeError 'i__builtin__\nlist\n', # INST 'l', # LIST 'o', # OBJ '(o', 'p1\n', # PUT 'q\x00', # BINPUT 'r\x00\x00\x00\x00', # LONG_BINPUT 's', # SETITEM 'Ns', 'NNs', 't', # TUPLE 'u', # SETITEMS # '(u', # PyUnpickler doesn't raise '}(Nu', '\x81', # NEWOBJ ')\x81', '\x85', # TUPLE1 '\x86', # TUPLE2 'N\x86', '\x87', # TUPLE3 'N\x87', 'NN\x87', ] for p in badpickles: self.check_unpickling_error(self.bad_stack_errors, p)
def test_appends_on_non_lists(self): # Issue #17720 obj = REX_six([1, 2, 3]) for proto in protocols: if proto == 0: self._check_pickling_with_opcode(obj, pickle.APPEND, proto) else: self._check_pickling_with_opcode(obj, pickle.APPENDS, proto)
def test_bad_stack(self): badpickles = [ b'.', # STOP b'0', # POP b'1', # POP_MARK b'2', # DUP # b'(2', # PyUnpickler doesn't raise b'R', # REDUCE b')R', b'a', # APPEND b'Na', b'b', # BUILD b'Nb', b'd', # DICT b'e', # APPENDS # b'(e', # PyUnpickler raises AttributeError b'ibuiltins\nlist\n', # INST b'l', # LIST b'o', # OBJ b'(o', b'p1\n', # PUT b'q\x00', # BINPUT b'r\x00\x00\x00\x00', # LONG_BINPUT b's', # SETITEM b'Ns', b'NNs', b't', # TUPLE b'u', # SETITEMS # b'(u', # PyUnpickler doesn't raise b'}(Nu', b'\x81', # NEWOBJ b')\x81', b'\x85', # TUPLE1 b'\x86', # TUPLE2 b'N\x86', b'\x87', # TUPLE3 b'N\x87', b'NN\x87', b'\x90', # ADDITEMS # b'(\x90', # PyUnpickler raises AttributeError b'\x91', # FROZENSET b'\x92', # NEWOBJ_EX b')}\x92', b'\x93', # STACK_GLOBAL b'Vlist\n\x93', b'\x94', # MEMOIZE ] for p in badpickles: self.check_unpickling_error(self.bad_stack_errors, p)
