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How to use test_pickle method in avocado

Best Python code snippet using avocado_python

explain_pickle.py

Source:explain_pickle.py

...529    def APPEND(self):530        r"""531        TESTS::532            sage: from sage.misc.explain_pickle import *533            sage: test_pickle(['a'])534                0: \x80 PROTO      2535                2: ]    EMPTY_LIST536                3: q    BINPUT     1537                5: U    SHORT_BINSTRING 'a'538                8: a    APPEND539                9: .    STOP540            highest protocol among opcodes = 2541            explain_pickle in_current_sage=True/False:542            ['a']543            result: ['a']544        As shown above, we prefer to create a list literal.  This is not545        possible if the list is recursive::546            sage: v = []547            sage: v.append(v)548            sage: test_pickle(v)549                0: \x80 PROTO      2550                2: ]    EMPTY_LIST551                3: q    BINPUT     1552                5: h    BINGET     1553                7: a    APPEND554                8: .    STOP555            highest protocol among opcodes = 2556            explain_pickle in_current_sage=True/False:557            si = []558            list.append(si, si)559            si560            result: [[...]]561        """562        obj = self.pop()563        lst = self.pop()564        self._APPENDS_helper(lst, [obj])565    def APPENDS(self):566        r"""567        TESTS::568            sage: from sage.misc.explain_pickle import *569            sage: test_pickle(['a', 'b'])570                0: \x80 PROTO      2571                2: ]    EMPTY_LIST572                3: q    BINPUT     1573                5: (    MARK574                6: U        SHORT_BINSTRING 'a'575                9: U        SHORT_BINSTRING 'b'576               12: e        APPENDS    (MARK at 5)577               13: .    STOP578            highest protocol among opcodes = 2579            explain_pickle in_current_sage=True/False:580            ['a', 'b']581            result: ['a', 'b']582        As shown above, we prefer to create a list literal.  This is not583        possible if the list is recursive::584            sage: v = []585            sage: v.append(v)586            sage: v.append(v)587            sage: test_pickle(v)588                0: \x80 PROTO      2589                2: ]    EMPTY_LIST590                3: q    BINPUT     1591                5: (    MARK592                6: h        BINGET     1593                8: h        BINGET     1594               10: e        APPENDS    (MARK at 5)595               11: .    STOP596            highest protocol among opcodes = 2597            explain_pickle in_current_sage=True/False:598            si = []599            list.extend(si, [si, si])600            si601            result: [[...], [...]]602        """603        slice = self.pop_to_mark()604        lst = self.pop()605        self._APPENDS_helper(lst, slice)606    def _APPENDS_helper(self, lst, slice):607        r"""608        TESTS::609        See the doctests for APPEND and APPENDS for some simple indirect610        tests of this method.  Here we test some subtle behavior.611        For subtypes of list, we use list.append/list.extend instead of612        the append method of the object (TestAppendList.append raises613        an exception, so we can tell that cPickle doesn't call it either)::614            sage: from sage.misc.explain_pickle import *615            sage: test_pickle(TestAppendList((True,))) # indirect doctest616                0: \x80 PROTO      2617                2: c    GLOBAL     'sage.misc.explain_pickle TestAppendList'618               43: q    BINPUT     1619               45: )    EMPTY_TUPLE620               46: \x81 NEWOBJ621               47: q    BINPUT     2622               49: \x88 NEWTRUE623               50: a    APPEND624               51: }    EMPTY_DICT625               52: q    BINPUT     3626               54: b    BUILD627               55: .    STOP628            highest protocol among opcodes = 2629            explain_pickle in_current_sage=True:630            from sage.misc.explain_pickle import TestAppendList631            si = unpickle_newobj(TestAppendList, ())632            list.append(si, True)633            si634            explain_pickle in_current_sage=False:635            pg_TestAppendList = unpickle_global('sage.misc.explain_pickle', 'TestAppendList')636            si = unpickle_newobj(pg_TestAppendList, ())637            unpickle_appends(si, [True])638            unpickle_build(si, {})639            si640            result: [True]641        642        For values which are not subtypes of list, we use their own append643        method::644            sage: v = TestAppendNonlist()645            sage: v.list = [False, None]646            sage: test_pickle(v, verbose_eval=True)647                0: \x80 PROTO      2648                2: c    GLOBAL     'sage.misc.explain_pickle TestAppendNonlist'649               46: q    BINPUT     1650               48: )    EMPTY_TUPLE651               49: R    REDUCE652               50: q    BINPUT     2653               52: (    MARK654               53: \x89     NEWFALSE655               54: N        NONE656               55: e        APPENDS    (MARK at 52)657               56: .    STOP658            highest protocol among opcodes = 2659            explain_pickle in_current_sage=True:660            from sage.misc.explain_pickle import TestAppendNonlist661            si = TestAppendNonlist()662            si.append(False)663            si.append(None)664            si665            explain_pickle in_current_sage=False:666            pg_TestAppendNonlist = unpickle_global('sage.misc.explain_pickle', 'TestAppendNonlist')667            pg = unpickle_instantiate(pg_TestAppendNonlist, ())668            unpickle_appends(pg, [False, None])669            pg670            evaluating explain_pickle in_current_sage=True:671            Fetching append attribute672            Fetching append attribute673            evaluating explain_pickle in_current_sage=False:674            Fetching append attribute675            loading pickle with cPickle:676            Fetching append attribute677            result: [False, None]678        We see above that the in_current_sage=True code doesn't quite match679        the other cases, because it fetches the append attribute twice680        instead of once.  If we set pedantic=True, then this is fixed.681        (We show only the changed parts of the output)::682            sage: test_pickle(v, verbose_eval=True, pedantic=True)683                0: \x80 PROTO      2684            ...685            explain_pickle in_current_sage=True:686            from sage.misc.explain_pickle import TestAppendNonlist687            si1 = TestAppendNonlist()688            si2 = si1.append689            si2(False)690            si2(None)691            si1692            ...693            evaluating explain_pickle in_current_sage=True:694            Fetching append attribute695            ...696        """697        # This has the side-effect of marking lst as immutable, if698        # slice happens to include lst.699        slice_exp = self.sib(slice)700        if self.is_mutable_pickle_object(lst) and isinstance(lst.value, list):701            lst.value.extend(slice)702            lst.expression = self.sib(lst.value)703        elif isinstance(lst, PickleObject) or self.default_assumptions:704            if isinstance(lst.value, list) or \705                    (isinstance(lst.value, PickleInstance) and706                     issubclass(lst.value.klass, list)) or \707                     self.default_assumptions:708                if len(slice) > 1:709                    self.sib.command(lst, self.sib.name('list').extend(lst, slice))710                else:711                    for s in slice:712                        self.sib.command(lst, self.sib.name('list').append(lst, self.sib(s)))713            else:714                if self.pedantic:715                    app = self.sib(lst).append716                    for s in slice:717                        self.sib.command(lst, app(self.sib(s)))718                else:719                    for s in slice:720                        self.sib.command(lst, self.sib(lst).append(self.sib(s)))721        else:722            self.sib.command(lst, self.sib.name('unpickle_appends')(self.sib(lst), slice_exp))723        self.push(lst)724        725    def BINFLOAT(self, f):726        r"""727        TESTS::728            sage: from sage.misc.explain_pickle import *729            sage: test_pickle(float(pi))730                0: \x80 PROTO      2731                2: G    BINFLOAT   3.141592653589793732               11: .    STOP733            highest protocol among opcodes = 2734            explain_pickle in_current_sage=True/False:735            float(RR(3.1415926535897931))736            result: 3.141592653589793737        """738        self.push(self.sib(f))739    def BINGET(self, n):740        r"""741        TESTS::742            sage: from pickle import *743            sage: from sage.misc.explain_pickle import *744            sage: test_pickle(EMPTY_LIST + BINPUT + 'x' + POP + BINGET + 'x' + '.')745                0: ]    EMPTY_LIST746                1: q    BINPUT     120747                3: 0    POP748                4: h    BINGET     120749                6: .    STOP750            highest protocol among opcodes = 1751            explain_pickle in_current_sage=True/False:752            []753            result: []        754        """755        self.push(self.memo[n])756    def BININT(self, n):757        r"""758        TESTS::759            sage: from sage.misc.explain_pickle import *760            sage: test_pickle(dumps(100000r, compress=False))761                0: \x80 PROTO      2762                2: J    BININT     100000763                7: .    STOP764            highest protocol among opcodes = 2765            explain_pickle in_current_sage=True/False:766            100000767            result: 100000768        """769        self.push_and_share(self.sib(n))770    def BININT1(self, n):771        r"""772        TESTS::773            sage: from sage.misc.explain_pickle import *774            sage: test_pickle(dumps(100r, compress=False))775                0: \x80 PROTO      2776                2: K    BININT1    100777                4: .    STOP778            highest protocol among opcodes = 2779            explain_pickle in_current_sage=True/False:780            100781            result: 100782        """783        self.push_and_share(self.sib(n))784    def BININT2(self, n):785        r"""786        TESTS::787            sage: from sage.misc.explain_pickle import *788            sage: test_pickle(dumps(1000r, compress=False))789                0: \x80 PROTO      2790                2: M    BININT2    1000791                5: .    STOP792            highest protocol among opcodes = 2793            explain_pickle in_current_sage=True/False:794            1000795            result: 1000796        """797        self.push_and_share(self.sib(n))798    def BINPUT(self, n):799        r"""800        TESTS::801            sage: from pickle import *802            sage: from sage.misc.explain_pickle import *803            sage: test_pickle(EMPTY_LIST + BINPUT + 'x' + POP + BINGET + 'x')804                0: ]    EMPTY_LIST805                1: q    BINPUT     120806                3: 0    POP807                4: h    BINGET     120808                6: .    STOP809            highest protocol among opcodes = 1810            explain_pickle in_current_sage=True/False:811            []812            result: []        813        """814        v = self.pop()815        self.memo[n] = v816        self.push(v)817    def BINSTRING(self, s):818        r"""819        TESTS::820            sage: from sage.misc.explain_pickle import *821            sage: test_pickle('T\5\0\0\0hello.')822                0: T    BINSTRING 'hello'823               10: .    STOP824            highest protocol among opcodes = 1825            explain_pickle in_current_sage=True/False:826            'hello'827            result: 'hello'828        """829        self.push(PickleObject(s, self.share(self.sib(s))))830    def BINUNICODE(self, s):831        r"""832        TESTS::833            sage: from sage.misc.explain_pickle import *834            sage: test_pickle(u'hi\u1234\U00012345')835                0: \x80 PROTO      2836                2: X    BINUNICODE u'hi\u1234\U00012345'837               16: q    BINPUT     1838               18: .    STOP839            highest protocol among opcodes = 2840            explain_pickle in_current_sage=True/False:841            u'hi\u1234\U00012345'842            result: u'hi\u1234\U00012345'843        """844        self.push_and_share(self.sib(s))845    def BUILD(self):846        r"""847        TESTS::848            sage: from sage.misc.explain_pickle import *849            sage: test_pickle(TestBuild())850                0: \x80 PROTO      2851                2: c    GLOBAL     'sage.misc.explain_pickle TestBuild'852               38: q    BINPUT     1853               40: )    EMPTY_TUPLE854               41: \x81 NEWOBJ855               42: q    BINPUT     2856               44: }    EMPTY_DICT857               45: q    BINPUT     3858               47: U    SHORT_BINSTRING 'x'859               50: K    BININT1    3860               52: s    SETITEM861               53: }    EMPTY_DICT862               54: q    BINPUT     4863               56: U    SHORT_BINSTRING 'y'864               59: K    BININT1    4865               61: s    SETITEM866               62: \x86 TUPLE2867               63: b    BUILD868               64: .    STOP869            highest protocol among opcodes = 2870            explain_pickle in_current_sage=True:871            from sage.misc.explain_pickle import TestBuild872            si = unpickle_newobj(TestBuild, ())873            si.__dict__['x'] = 3874            si.y = 4875            si876            explain_pickle in_current_sage=False:877            pg_TestBuild = unpickle_global('sage.misc.explain_pickle', 'TestBuild')878            si = unpickle_newobj(pg_TestBuild, ())879            unpickle_build(si, ({'x':3}, {'y':4}))880            si881            result: TestBuild: x=3; y=4882        ::883            sage: test_pickle(TestBuildSetstate(), verbose_eval=True)884                0: \x80 PROTO      2885                2: c    GLOBAL     'sage.misc.explain_pickle TestBuildSetstate'886               46: q    BINPUT     1887               48: )    EMPTY_TUPLE888               49: \x81 NEWOBJ889               50: q    BINPUT     2890               52: }    EMPTY_DICT891               53: q    BINPUT     3892               55: U    SHORT_BINSTRING 'x'893               58: K    BININT1    3894               60: s    SETITEM895               61: }    EMPTY_DICT896               62: q    BINPUT     4897               64: U    SHORT_BINSTRING 'y'898               67: K    BININT1    4899               69: s    SETITEM900               70: \x86 TUPLE2901               71: b    BUILD902               72: .    STOP903            highest protocol among opcodes = 2904            explain_pickle in_current_sage=True:905            from sage.misc.explain_pickle import TestBuildSetstate906            si = unpickle_newobj(TestBuildSetstate, ())907            si.__setstate__(({'x':3}, {'y':4}))908            si909            explain_pickle in_current_sage=False:910            pg_TestBuildSetstate = unpickle_global('sage.misc.explain_pickle', 'TestBuildSetstate')911            si = unpickle_newobj(pg_TestBuildSetstate, ())912            unpickle_build(si, ({'x':3}, {'y':4}))913            si914            evaluating explain_pickle in_current_sage=True:915            setting state from ({'x': 3}, {'y': 4})916            evaluating explain_pickle in_current_sage=False:917            setting state from ({'x': 3}, {'y': 4})918            loading pickle with cPickle:919            setting state from ({'x': 3}, {'y': 4})920            result: TestBuild: x=4; y=3921        """922        args = self.pop()923        obj = self.pop()924        use_setstate = False925        direct_set = False926        if self.default_assumptions:927            direct_set = True928        elif self.in_current_sage:929            if isinstance(obj, PickleObject) and isinstance(obj.value, PickleInstance):930                if hasattr(obj.value.klass, '__setstate__'):931                    use_setstate = True932                else:933                    direct_set = True934        can_handle_direct_set = False935        if direct_set:936            if isinstance(args, PickleObject):937                if isinstance(args.value, PickleDict):938                    can_handle_direct_set = True939                if isinstance(args.value, tuple) and isinstance(args.value[0], PickleObject) and isinstance(args.value[0].value, PickleDict) and isinstance(args.value[1], PickleObject) and isinstance(args.value[1].value, PickleDict):940                    can_handle_direct_set = True941            if not can_handle_direct_set:942                direct_set = False943        if use_setstate:944            self.sib.command(obj, self.sib.getattr(obj, '__setstate__')(args))945        elif direct_set:946            state = args.value947            slots = None948            if isinstance(state, tuple):949                slots = state[1].value950                state = state[0].value951            d = self.sib.getattr(obj, '__dict__')952            for k,v in state.items:953                self.sib.command(obj, self.sib.assign(d[k], v))954            if slots is not None:955                for k,v in slots.items:956                    if isinstance(k, PickleObject) and isinstance(k.value, str):957                        self.sib.command(obj, self.sib.assign(self.sib.getattr(obj, k.value), v))958                    else:959                        self.sib.command(obj, self.sib.name('setattr')(obj, k, v))960        else:961            self.sib.command(obj, self.sib.name('unpickle_build')(obj, args))962        self.push(obj)963    def DICT(self):964        r"""965        TESTS::966            sage: from pickle import *967            sage: from sage.misc.explain_pickle import *968            sage: test_pickle(DICT, args=('mark', 'a', 1, 2, 'b'))969                0: (    MARK970                1: P        PERSID     '1'971                4: P        PERSID     '2'972                7: P        PERSID     '3'973               10: P        PERSID     '4'974               13: d        DICT       (MARK at 0)975               14: .    STOP976            highest protocol among opcodes = 0977            explain_pickle in_current_sage=True/False:978            {unpickle_persistent('1'):unpickle_persistent('2'), unpickle_persistent('3'):unpickle_persistent('4')}979            result: {'a': 1, 2: 'b'}980        """981        slice = self.pop_to_mark()982        self.EMPTY_DICT()983        self._SETITEMS_helper(slice)984    def DUP(self):985        r"""986        TESTS::987            sage: from pickle import *988            sage: from sage.misc.explain_pickle import *989            sage: test_pickle(EMPTY_LIST + DUP + TUPLE2 + STOP)990                0: ]    EMPTY_LIST991                1: 2    DUP992                2: \x86 TUPLE2993                3: .    STOP994            highest protocol among opcodes = 2995            explain_pickle in_current_sage=True/False:996            si = []997            (si, si)998            result: ([], [])999        """1000        v = self.pop()1001        self.push(v)1002        self.push(v)1003    def EMPTY_DICT(self):1004        r"""1005        TESTS::1006            sage: from pickle import *1007            sage: from sage.misc.explain_pickle import *1008            sage: test_pickle(EMPTY_DICT)1009                0: }    EMPTY_DICT1010                1: .    STOP1011            highest protocol among opcodes = 11012            explain_pickle in_current_sage=True/False:1013            {}1014            result: {}1015        """1016        self.push(PickleObject(PickleDict([]), self.sib({})))1017    def EMPTY_LIST(self):1018        r"""1019        TESTS::1020            sage: from pickle import *1021            sage: from sage.misc.explain_pickle import *1022            sage: test_pickle(EMPTY_LIST)1023                0: ]    EMPTY_LIST1024                1: .    STOP1025            highest protocol among opcodes = 11026            explain_pickle in_current_sage=True/False:1027            []1028            result: []1029        """1030        self.push(PickleObject([], self.sib([])))1031    def EMPTY_TUPLE(self):1032        r"""1033        TESTS::1034            sage: from pickle import *1035            sage: from sage.misc.explain_pickle import *1036            sage: test_pickle(EMPTY_TUPLE)1037                0: )    EMPTY_TUPLE1038                1: .    STOP1039            highest protocol among opcodes = 11040            explain_pickle in_current_sage=True/False:1041            ()1042            result: ()1043        """1044        self.push(PickleObject((), self.sib(())))1045    def EXT1(self, n):1046        r"""1047        TESTS::1048            sage: from copy_reg import *1049            sage: from sage.misc.explain_pickle import *1050            sage: add_extension('sage.misc.explain_pickle', 'EmptyNewstyleClass', 42)1051            sage: test_pickle(EmptyNewstyleClass())1052                0: \x80 PROTO      21053                2: \x82 EXT1       421054                4: )    EMPTY_TUPLE1055                5: \x81 NEWOBJ1056                6: q    BINPUT     11057                8: }    EMPTY_DICT1058                9: q    BINPUT     21059               11: b    BUILD1060               12: .    STOP1061            highest protocol among opcodes = 21062            explain_pickle in_current_sage=True/False:1063            si = unpickle_newobj(unpickle_extension(42), ())1064            unpickle_build(si, {})1065            si1066            result: EmptyNewstyleClass1067            sage: remove_extension('sage.misc.explain_pickle', 'EmptyNewstyleClass', 42)1068        """1069        self.push(self.sib.name('unpickle_extension')(n))1070    def EXT2(self, n):1071        r"""1072        TESTS::1073            sage: from copy_reg import *1074            sage: from sage.misc.explain_pickle import *1075            sage: add_extension('sage.misc.explain_pickle', 'EmptyNewstyleClass', 31415)1076            sage: test_pickle(EmptyNewstyleClass())1077                0: \x80 PROTO      21078                2: \x83 EXT2       314151079                5: )    EMPTY_TUPLE1080                6: \x81 NEWOBJ1081                7: q    BINPUT     11082                9: }    EMPTY_DICT1083               10: q    BINPUT     21084               12: b    BUILD1085               13: .    STOP1086            highest protocol among opcodes = 21087            explain_pickle in_current_sage=True/False:1088            si = unpickle_newobj(unpickle_extension(31415), ())1089            unpickle_build(si, {})1090            si1091            result: EmptyNewstyleClass1092            sage: remove_extension('sage.misc.explain_pickle', 'EmptyNewstyleClass', 31415)1093        """1094        self.push(self.sib.name('unpickle_extension')(n))1095    def EXT4(self, n):1096        r"""1097        TESTS::1098            sage: from copy_reg import *1099            sage: from sage.misc.explain_pickle import *1100            sage: add_extension('sage.misc.explain_pickle', 'EmptyNewstyleClass', 27182818)1101            sage: test_pickle(EmptyNewstyleClass())1102                0: \x80 PROTO      21103                2: \x84 EXT4       271828181104                7: )    EMPTY_TUPLE1105                8: \x81 NEWOBJ1106                9: q    BINPUT     11107               11: }    EMPTY_DICT1108               12: q    BINPUT     21109               14: b    BUILD1110               15: .    STOP1111            highest protocol among opcodes = 21112            explain_pickle in_current_sage=True/False:1113            si = unpickle_newobj(unpickle_extension(27182818), ())1114            unpickle_build(si, {})1115            si1116            result: EmptyNewstyleClass1117            sage: remove_extension('sage.misc.explain_pickle', 'EmptyNewstyleClass', 27182818)1118        """1119        self.push(self.sib.name('unpickle_extension')(n))1120    def FLOAT(self, f):1121        r"""1122        TESTS::1123            sage: from pickle import *1124            sage: from sage.misc.explain_pickle import *1125            sage: test_pickle(FLOAT + '2.71828\n')1126                0: F    FLOAT      2.718281127                9: .    STOP1128            highest protocol among opcodes = 01129            explain_pickle in_current_sage=True/False:1130            2.718281131            result: 2.718281132        """1133        self.push(self.sib(f))1134    def GET(self, n):1135        r"""1136        TESTS::1137            sage: from pickle import *1138            sage: from sage.misc.explain_pickle import *1139            sage: test_pickle(EMPTY_LIST + PUT + '1\n' + POP + GET + '1\n' + '.')1140                0: ]    EMPTY_LIST1141                1: p    PUT        11142                4: 0    POP1143                5: g    GET        11144                8: .    STOP1145            highest protocol among opcodes = 11146            explain_pickle in_current_sage=True/False:1147            []1148            result: []1149        """1150        self.push(self.memo[n])1151    def GLOBAL(self, name):1152        r"""1153        TESTS::1154            sage: from sage.misc.explain_pickle import *1155        We've used register_unpickle_override so that unpickle_global1156        will map TestGlobalOldName to TestGlobalNewName.1157        ::1158            sage: test_pickle(TestGlobalOldName())1159                0: \x80 PROTO      21160                2: c    GLOBAL     'sage.misc.explain_pickle TestGlobalOldName'1161               46: q    BINPUT     11162               48: )    EMPTY_TUPLE1163               49: \x81 NEWOBJ1164               50: q    BINPUT     21165               52: }    EMPTY_DICT1166               53: q    BINPUT     31167               55: b    BUILD1168               56: .    STOP1169            highest protocol among opcodes = 21170            explain_pickle in_current_sage=True:1171            from sage.misc.explain_pickle import TestGlobalNewName1172            unpickle_newobj(TestGlobalNewName, ())1173            explain_pickle in_current_sage=False:1174            pg_TestGlobalOldName = unpickle_global('sage.misc.explain_pickle', 'TestGlobalOldName')1175            si = unpickle_newobj(pg_TestGlobalOldName, ())1176            unpickle_build(si, {})1177            si1178            result: TestGlobalNewName1179        Note that default_assumptions blithely assumes that it should1180        use the old name, giving code that doesn't actually work as1181        desired::1182            sage: explain_pickle(dumps(TestGlobalOldName()), default_assumptions=True)1183            from sage.misc.explain_pickle import TestGlobalOldName1184            unpickle_newobj(TestGlobalOldName, ())1185        A class name need not be a valid identifier::1186            sage: sage.misc.explain_pickle.__dict__['funny$name'] = TestGlobalFunnyName # see comment at end of file1187            sage: test_pickle((TestGlobalFunnyName(), TestGlobalFunnyName()))1188                0: \x80 PROTO      21189                2: c    GLOBAL     'sage.misc.explain_pickle funny$name'1190               39: q    BINPUT     11191               41: )    EMPTY_TUPLE1192               42: \x81 NEWOBJ1193               43: q    BINPUT     21194               45: }    EMPTY_DICT1195               46: q    BINPUT     31196               48: b    BUILD1197               49: h    BINGET     11198               51: )    EMPTY_TUPLE1199               52: \x81 NEWOBJ1200               53: q    BINPUT     41201               55: }    EMPTY_DICT1202               56: q    BINPUT     51203               58: b    BUILD1204               59: \x86 TUPLE21205               60: q    BINPUT     61206               62: .    STOP1207            highest protocol among opcodes = 21208            explain_pickle in_current_sage=True/False:1209            si1 = unpickle_global('sage.misc.explain_pickle', 'funny$name')1210            si2 = unpickle_newobj(si1, ())1211            unpickle_build(si2, {})1212            si3 = unpickle_newobj(si1, ())1213            unpickle_build(si3, {})1214            (si2, si3)1215            result: (TestGlobalFunnyName, TestGlobalFunnyName)1216        """1217        module, func = name.split(' ')1218        if self.default_assumptions:1219            # Should the default assumption be that sage.all does, or1220            # does not, have a conflicting variable name?1221            # I'm going to go with "does not conflict".1222            self.push(self.sib.import_name(module, func))1223            return1224        name_ok = name_is_valid(func)1225        if self.in_current_sage and name_ok:1226            override = unpickle_override.get((module, func))1227            if override is None:1228                __import__(module)1229                f = getattr(sys.modules[module], func)1230            else:1231                f, new_mf = override1232                if new_mf is not None:1233                    module, func = new_mf1234            if override is None or new_mf is not None:1235                # OK, we know what module and function name will actually1236                # be used, as well as the actual function.1237                # Is this already available at the command line?1238                cmdline_f = getattr(sage.all, func, None)1239                if cmdline_f is f:1240                    self.push(PickleObject(f, self.sib.name(func)))1241                    return1242                if cmdline_f is None:1243                    # OK, we'll go ahead and import it under the original1244                    # name.1245                    self.push(PickleObject(f, self.sib.import_name(module, func)))1246                    return1247                # The original name is in use.1248                self.push(PickleObject(f, self.sib.import_name(module, func, 'pg_' + func)))1249                return                    1250        # We don't know the full name of the function that will1251        # actually be used (either we're being generic, or1252        # unpickle_override only has the function, not its name).1253        v = self.sib.name('unpickle_global')(module, func)1254        if name_ok:1255            self.sib.use_variable(v, 'pg_' + func)1256        self.push(v)1257    def INST(self, name):1258        r"""1259        TESTS::1260            sage: import pickle1261            sage: from sage.misc.explain_pickle import *1262            sage: test_pickle(pickle.dumps(EmptyOldstyleClass(), protocol=0))1263                0: (    MARK1264                1: i        INST       'sage.misc.explain_pickle EmptyOldstyleClass' (MARK at 0)1265               46: p    PUT        01266               49: (    MARK1267               50: d        DICT       (MARK at 49)1268               51: p    PUT        11269               54: b    BUILD1270               55: .    STOP1271            highest protocol among opcodes = 01272            explain_pickle in_current_sage=True:1273            from types import InstanceType1274            from sage.misc.explain_pickle import EmptyOldstyleClass1275            InstanceType(EmptyOldstyleClass)1276            explain_pickle in_current_sage=False:1277            pg_EmptyOldstyleClass = unpickle_global('sage.misc.explain_pickle', 'EmptyOldstyleClass')1278            pg = unpickle_instantiate(pg_EmptyOldstyleClass, ())1279            unpickle_build(pg, {})1280            pg1281            result: EmptyOldstyleClass1282        """1283        self.TUPLE()1284        v = self.pop()1285        self.GLOBAL(name)1286        self.push(v)1287        self.REDUCE()1288    def INT(self, n):1289        r"""1290        TESTS::1291            sage: from pickle import *1292            sage: from sage.misc.explain_pickle import *1293            sage: test_pickle(INT + "-12345\n")1294                0: I    INT        -123451295                8: .    STOP1296            highest protocol among opcodes = 01297            explain_pickle in_current_sage=True/False:1298            -123451299            result: -123451300        INT can also be used to record True and False::1301            sage: test_pickle(INT + "00\n")1302                0: I    INT        False1303                4: .    STOP1304            highest protocol among opcodes = 01305            explain_pickle in_current_sage=True/False:1306            False1307            result: False1308            sage: test_pickle(INT + "01\n")1309                0: I    INT        True1310                4: .    STOP1311            highest protocol among opcodes = 01312            explain_pickle in_current_sage=True/False:1313            True1314            result: True1315        """1316        self.push_and_share(self.sib(n))1317    def LIST(self):1318        r"""1319        TESTS::1320            sage: from pickle import *1321            sage: from sage.misc.explain_pickle import *1322            sage: test_pickle(MARK + NONE + NEWFALSE + LIST)1323                0: (    MARK1324                1: N        NONE1325                2: \x89     NEWFALSE1326                3: l        LIST       (MARK at 0)1327                4: .    STOP1328            highest protocol among opcodes = 21329            explain_pickle in_current_sage=True/False:1330            [None, False]1331            result: [None, False]1332        """1333        lst = self.pop_to_mark()1334        self.push(PickleObject(lst, self.sib(lst)))1335    def LONG(self, n):1336        r"""1337        TESTS::1338            sage: from pickle import *1339            sage: from sage.misc.explain_pickle import *1340            sage: test_pickle(LONG + "12345678909876543210123456789L\n")1341                0: L    LONG       12345678909876543210123456789L1342               32: .    STOP1343            highest protocol among opcodes = 01344            explain_pickle in_current_sage=True/False:1345            123456789098765432101234567891346            result: 12345678909876543210123456789L1347        """1348        self.push(self.sib(n))1349    def LONG1(self, n):1350        r"""1351        TESTS::1352            sage: from sage.misc.explain_pickle import *1353            sage: test_pickle(1L)1354                0: \x80 PROTO      21355                2: \x8a LONG1      1L1356                5: .    STOP1357            highest protocol among opcodes = 21358            explain_pickle in_current_sage=True/False:1359            1L1360            result: 1L1361        """1362        self.push(self.sib(n))1363    def LONG4(self, n):1364        r"""1365        TESTS::1366            sage: from pickle import *1367            sage: from sage.misc.explain_pickle import *1368            sage: test_pickle(LONG4 + '\014\0\0\0' + 'hello, world')1369                0: \x8b LONG4      31079605376604435891501163880L1370               17: .    STOP1371            highest protocol among opcodes = 21372            explain_pickle in_current_sage=True/False:1373            310796053766044358915011638801374            result: 31079605376604435891501163880L1375        """1376        self.push(self.sib(n))1377    def LONG_BINGET(self, n):1378        r"""1379        TESTS::1380            sage: from pickle import *1381            sage: from sage.misc.explain_pickle import *1382            sage: test_pickle(EMPTY_LIST + LONG_BINPUT + 'Sage' + POP + LONG_BINGET + 'Sage')1383                0: ]    EMPTY_LIST1384                1: r    LONG_BINPUT 17012739391385                6: 0    POP1386                7: j    LONG_BINGET 17012739391387               12: .    STOP1388            highest protocol among opcodes = 11389            explain_pickle in_current_sage=True/False:1390            []1391            result: []        1392        """1393        self.push(self.memo[n])1394    def LONG_BINPUT(self, n):1395        r"""1396        TESTS::1397            sage: from pickle import *1398            sage: from sage.misc.explain_pickle import *1399            sage: test_pickle(EMPTY_LIST + LONG_BINPUT + 'Sage' + POP + LONG_BINGET + 'Sage')1400                0: ]    EMPTY_LIST1401                1: r    LONG_BINPUT 17012739391402                6: 0    POP1403                7: j    LONG_BINGET 17012739391404               12: .    STOP1405            highest protocol among opcodes = 11406            explain_pickle in_current_sage=True/False:1407            []1408            result: []        1409        """1410        v = self.pop()1411        self.memo[n] = v1412        self.push(v)1413    def MARK(self):1414        r"""1415        TESTS::1416            sage: from pickle import *1417            sage: from sage.misc.explain_pickle import *1418            sage: test_pickle(MARK + TUPLE)1419                0: (    MARK1420                1: t        TUPLE      (MARK at 0)1421                2: .    STOP1422            highest protocol among opcodes = 01423            explain_pickle in_current_sage=True/False:1424            ()1425            result: ()1426        """1427        self.push_mark()1428    def NEWFALSE(self):1429        r"""1430        TESTS::1431            sage: from pickle import *1432            sage: from sage.misc.explain_pickle import *1433            sage: test_pickle(NEWFALSE)1434                0: \x89 NEWFALSE1435                1: .    STOP1436            highest protocol among opcodes = 21437            explain_pickle in_current_sage=True/False:1438            False1439            result: False1440        """1441        self.push(self.sib.name('False'))1442    def NEWTRUE(self):1443        r"""1444        TESTS::1445            sage: from pickle import *1446            sage: from sage.misc.explain_pickle import *1447            sage: test_pickle(NEWTRUE)1448                0: \x88 NEWTRUE1449                1: .    STOP1450            highest protocol among opcodes = 21451            explain_pickle in_current_sage=True/False:1452            True1453            result: True1454        """1455        self.push(self.sib.name('True'))1456    def NEWOBJ(self):1457        r"""1458        TESTS::1459            sage: from sage.misc.explain_pickle import *1460            sage: test_pickle(EmptyNewstyleClass())1461                0: \x80 PROTO      21462                2: c    GLOBAL     'sage.misc.explain_pickle EmptyNewstyleClass'1463               47: q    BINPUT     11464               49: )    EMPTY_TUPLE1465               50: \x81 NEWOBJ1466               51: q    BINPUT     21467               53: }    EMPTY_DICT1468               54: q    BINPUT     31469               56: b    BUILD1470               57: .    STOP1471            highest protocol among opcodes = 21472            explain_pickle in_current_sage=True:1473            from sage.misc.explain_pickle import EmptyNewstyleClass1474            unpickle_newobj(EmptyNewstyleClass, ())1475            explain_pickle in_current_sage=False:1476            pg_EmptyNewstyleClass = unpickle_global('sage.misc.explain_pickle', 'EmptyNewstyleClass')1477            si = unpickle_newobj(pg_EmptyNewstyleClass, ())1478            unpickle_build(si, {})1479            si1480            result: EmptyNewstyleClass1481        """1482        args = self.pop()1483        klass = self.pop()1484        obj = self.sib.name('unpickle_newobj')(klass, args)1485        if isinstance(klass, PickleObject):1486            self.push(PickleObject(PickleInstance(klass.value), obj))1487        else:1488            self.push(obj)1489    def NONE(self):1490        r"""1491        TESTS::1492            sage: from pickle import *1493            sage: from sage.misc.explain_pickle import *1494            sage: test_pickle(NONE)1495                0: N    NONE1496                1: .    STOP1497            highest protocol among opcodes = 01498            explain_pickle in_current_sage=True/False:1499            None1500            result: None1501        """1502        self.push(PickleObject(None, self.sib.name('None')))1503    def OBJ(self):1504        r"""1505        TESTS::1506            sage: from sage.misc.explain_pickle import *1507            sage: test_pickle(EmptyOldstyleClass())1508                0: \x80 PROTO      21509                2: (    MARK1510                3: c        GLOBAL     'sage.misc.explain_pickle EmptyOldstyleClass'1511               48: q        BINPUT     11512               50: o        OBJ        (MARK at 2)1513               51: q    BINPUT     21514               53: }    EMPTY_DICT1515               54: q    BINPUT     31516               56: b    BUILD1517               57: .    STOP1518            highest protocol among opcodes = 21519            explain_pickle in_current_sage=True:1520            from types import InstanceType1521            from sage.misc.explain_pickle import EmptyOldstyleClass1522            InstanceType(EmptyOldstyleClass)1523            explain_pickle in_current_sage=False:1524            pg_EmptyOldstyleClass = unpickle_global('sage.misc.explain_pickle', 'EmptyOldstyleClass')1525            pg = unpickle_instantiate(pg_EmptyOldstyleClass, ())1526            unpickle_build(pg, {})1527            pg1528            result: EmptyOldstyleClass1529        """1530        klass_args = self.pop_to_mark()1531        klass = klass_args[0]1532        args = klass_args[1:]1533        self.push(klass)1534        self.push(PickleObject(tuple(args), self.sib(tuple(args))))1535        self.REDUCE()1536        1537    def PERSID(self, id):1538        r"""1539        TESTS::1540            sage: from pickle import *1541            sage: from sage.misc.explain_pickle import *1542            sage: test_pickle(PERSID + "0\n" + '.', args=('Yo!',))1543                0: P    PERSID     '0'1544                3: .    STOP1545            highest protocol among opcodes = 01546            explain_pickle in_current_sage=True/False:1547            unpickle_persistent('0')1548            result: 'Yo!'1549        """1550        self.push(self.sib.name('unpickle_persistent')(id))1551    def BINPERSID(self):1552        r"""1553        TESTS::1554            sage: from pickle import *1555            sage: from sage.misc.explain_pickle import *1556            sage: test_pickle(INT + "0\n" + BINPERSID + '.', args=('Yo!',))1557                0: I    INT        01558                3: Q    BINPERSID1559                4: .    STOP1560            highest protocol among opcodes = 11561            explain_pickle in_current_sage=True/False:1562            unpickle_persistent(0)1563            result: 'Yo!'1564        """1565        id = self.pop()1566        self.push(self.sib.name('unpickle_persistent')(id))1567    def POP(self):1568        r"""1569        TESTS::1570            sage: from pickle import *1571            sage: from sage.misc.explain_pickle import *1572            sage: test_pickle(INT + "0\n" + POP + INT + "42\n")1573                0: I    INT        01574                3: 0    POP1575                4: I    INT        421576                8: .    STOP1577            highest protocol among opcodes = 01578            explain_pickle in_current_sage=True/False:1579            421580            result: 421581        """1582        v = self.stack.pop()1583        if v is not the_mark:1584            self.check_value(v)1585    def POP_MARK(self):1586        r"""1587        TESTS::1588            sage: from pickle import *1589            sage: from sage.misc.explain_pickle import *1590            sage: test_pickle(MARK + NONE + NEWFALSE + POP_MARK + NEWTRUE)1591                0: (    MARK1592                1: N        NONE1593                2: \x89     NEWFALSE1594                3: 1        POP_MARK   (MARK at 0)1595                4: \x88 NEWTRUE1596                5: .    STOP1597            highest protocol among opcodes = 21598            explain_pickle in_current_sage=True/False:1599            True1600            result: True1601        """1602        self.pop_to_mark()1603    def PROTO(self, proto):1604        r"""1605        TESTS::1606            sage: from sage.misc.explain_pickle import *1607            sage: test_pickle(0r)1608                0: \x80 PROTO      21609                2: K    BININT1    01610                4: .    STOP1611            highest protocol among opcodes = 21612            explain_pickle in_current_sage=True/False:1613            01614            result: 01615        """1616        if not 0 <= proto <= 2:1617            raise ValueError, "unsupported pickle protocol: %d" % proto1618    def PUT(self, n):1619        r"""1620        TESTS::1621            sage: from pickle import *1622            sage: from sage.misc.explain_pickle import *1623            sage: test_pickle(EMPTY_LIST + PUT + '1\n' + POP + GET + '1\n' + '.')1624                0: ]    EMPTY_LIST1625                1: p    PUT        11626                4: 0    POP1627                5: g    GET        11628                8: .    STOP1629            highest protocol among opcodes = 11630            explain_pickle in_current_sage=True/False:1631            []1632            result: []1633        """1634        v = self.pop()1635        self.memo[n] = v1636        self.push(v)1637    def REDUCE(self):1638        r"""1639        TESTS::1640            sage: import pickle1641            sage: from sage.misc.explain_pickle import *1642            sage: test_pickle(pickle.dumps(EmptyNewstyleClass(), protocol=1))1643                0: c    GLOBAL     'copy_reg _reconstructor'1644               25: q    BINPUT     01645               27: (    MARK1646               28: c        GLOBAL     'sage.misc.explain_pickle EmptyNewstyleClass'1647               73: q        BINPUT     11648               75: c        GLOBAL     '__builtin__ object'1649               95: q        BINPUT     21650               97: N        NONE1651               98: t        TUPLE      (MARK at 27)1652               99: q    BINPUT     31653              101: R    REDUCE1654              102: q    BINPUT     41655              104: .    STOP1656            highest protocol among opcodes = 11657            explain_pickle in_current_sage=True:1658            from copy_reg import _reconstructor1659            from sage.misc.explain_pickle import EmptyNewstyleClass1660            from __builtin__ import object1661            _reconstructor(EmptyNewstyleClass, object, None)1662            explain_pickle in_current_sage=False:1663            pg__reconstructor = unpickle_global('copy_reg', '_reconstructor')1664            pg_EmptyNewstyleClass = unpickle_global('sage.misc.explain_pickle', 'EmptyNewstyleClass')1665            pg_object = unpickle_global('__builtin__', 'object')1666            pg__reconstructor(pg_EmptyNewstyleClass, pg_object, None)1667            result: EmptyNewstyleClass1668        ::1669            sage: test_pickle(TestReduceGetinitargs(), verbose_eval=True)1670            Running __init__ for TestReduceGetinitargs1671                0: \x80 PROTO      21672                2: (    MARK1673                3: c        GLOBAL     'sage.misc.explain_pickle TestReduceGetinitargs'1674               51: q        BINPUT     11675               53: o        OBJ        (MARK at 2)1676               54: q    BINPUT     21677               56: }    EMPTY_DICT1678               57: q    BINPUT     31679               59: b    BUILD1680               60: .    STOP1681            highest protocol among opcodes = 21682            explain_pickle in_current_sage=True:1683            from sage.misc.explain_pickle import TestReduceGetinitargs1684            TestReduceGetinitargs()1685            explain_pickle in_current_sage=False:1686            pg_TestReduceGetinitargs = unpickle_global('sage.misc.explain_pickle', 'TestReduceGetinitargs')1687            pg = unpickle_instantiate(pg_TestReduceGetinitargs, ())1688            unpickle_build(pg, {})1689            pg1690            evaluating explain_pickle in_current_sage=True:1691            Running __init__ for TestReduceGetinitargs1692            evaluating explain_pickle in_current_sage=False:1693            Running __init__ for TestReduceGetinitargs1694            loading pickle with cPickle:1695            Running __init__ for TestReduceGetinitargs1696            result: TestReduceGetinitargs1697        ::1698            sage: test_pickle(TestReduceNoGetinitargs(), verbose_eval=True)1699            Running __init__ for TestReduceNoGetinitargs1700                0: \x80 PROTO      21701                2: (    MARK1702                3: c        GLOBAL     'sage.misc.explain_pickle TestReduceNoGetinitargs'1703               53: q        BINPUT     11704               55: o        OBJ        (MARK at 2)1705               56: q    BINPUT     21706               58: }    EMPTY_DICT1707               59: q    BINPUT     31708               61: b    BUILD1709               62: .    STOP1710            highest protocol among opcodes = 21711            explain_pickle in_current_sage=True:1712            from types import InstanceType1713            from sage.misc.explain_pickle import TestReduceNoGetinitargs1714            InstanceType(TestReduceNoGetinitargs)1715            explain_pickle in_current_sage=False:1716            pg_TestReduceNoGetinitargs = unpickle_global('sage.misc.explain_pickle', 'TestReduceNoGetinitargs')1717            pg = unpickle_instantiate(pg_TestReduceNoGetinitargs, ())1718            unpickle_build(pg, {})1719            pg1720            evaluating explain_pickle in_current_sage=True:1721            evaluating explain_pickle in_current_sage=False:1722            loading pickle with cPickle:1723            result: TestReduceNoGetinitargs1724        """1725        # Reading cPickle.c (in the Instance_New function),1726        # I think that REDUCE is equivalent to a function call unless1727        # all three of the following conditions are met:1728        #   obj is an old-style class1729        #   obj defines __getinitargs__1730        #   args is an empty tuple1731        # in which case it is equivalent to PyInstance_NewRaw(obj)1732        args = self.pop()1733        obj = self.pop()1734        simple_call = False1735        new_inst = False1736        if isinstance(args, PickleObject) and isinstance(args.value, tuple) \1737                and len(args.value) > 0:1738            simple_call = True1739        if self.default_assumptions:1740            simple_call = True1741        if self.in_current_sage:1742            if isinstance(obj, PickleObject):1743                if isinstance(obj.value, type):1744                    simple_call = True1745                elif isinstance(obj.value, types.ClassType):1746                    if hasattr(obj.value, '__getinitargs__'):1747                        simple_call = True1748                    else:1749                        new_inst = True1750        1751        if simple_call:1752            v = self.sib(obj)(*args.value)1753        elif new_inst:1754            v = self.new_instance(obj)1755        else:1756            v = self.sib.name('unpickle_instantiate')(obj, args)1757            self.sib.use_variable(v, 'pg')1758        if isinstance(obj, PickleObject):1759            self.push(PickleObject(PickleInstance(obj.value), v))1760        else:1761            self.push(v)1762    def SETITEM(self):1763        r"""1764        TESTS::1765            sage: import pickle1766            sage: from sage.misc.explain_pickle import *1767            sage: test_pickle(pickle.dumps({'a': 'b'}))1768                0: (    MARK1769                1: d        DICT       (MARK at 0)1770                2: p    PUT        01771                5: S    STRING     'a'1772               10: p    PUT        11773               13: S    STRING     'b'1774               18: p    PUT        21775               21: s    SETITEM1776               22: .    STOP1777            highest protocol among opcodes = 01778            explain_pickle in_current_sage=True/False:1779            {'a':'b'}1780            result: {'a': 'b'}            1781        We see above that we output the result as a dictionary literal, when1782        possible.  This is impossible when a key or value is recursive.  First1783        we test recursive values::1784            sage: value_rec = dict()1785            sage: value_rec['circular'] = value_rec1786            sage: test_pickle(pickle.dumps(value_rec))1787                0: (    MARK1788                1: d        DICT       (MARK at 0)1789                2: p    PUT        01790                5: S    STRING     'circular'1791               17: p    PUT        11792               20: g    GET        01793               23: s    SETITEM1794               24: .    STOP1795            highest protocol among opcodes = 01796            explain_pickle in_current_sage=True/False:1797            si = {}1798            si['circular'] = si1799            si1800            result: {'circular': {...}}1801        Then we test recursive keys::1802            sage: key_rec = dict()1803            sage: key = EmptyNewstyleClass()1804            sage: key.circular = key_rec1805            sage: key_rec[key] = 'circular'1806            sage: test_pickle(pickle.dumps(key_rec))1807                0: (    MARK1808                1: d        DICT       (MARK at 0)1809                2: p    PUT        01810                5: c    GLOBAL     'copy_reg _reconstructor'1811               30: p    PUT        11812               33: (    MARK1813               34: c        GLOBAL     'sage.misc.explain_pickle EmptyNewstyleClass'1814               79: p        PUT        21815               82: c        GLOBAL     '__builtin__ object'1816              102: p        PUT        31817              105: N        NONE1818              106: t        TUPLE      (MARK at 33)1819              107: p    PUT        41820              110: R    REDUCE1821              111: p    PUT        51822              114: (    MARK1823              115: d        DICT       (MARK at 114)1824              116: p    PUT        61825              119: S    STRING     'circular'1826              131: p    PUT        71827              134: g    GET        01828              137: s    SETITEM1829              138: b    BUILD1830              139: g    GET        71831              142: s    SETITEM1832              143: .    STOP1833            highest protocol among opcodes = 01834            explain_pickle in_current_sage=True:1835            si1 = {}1836            from copy_reg import _reconstructor1837            from sage.misc.explain_pickle import EmptyNewstyleClass1838            from __builtin__ import object1839            si2 = _reconstructor(EmptyNewstyleClass, object, None)1840            si2.__dict__['circular'] = si11841            si1[si2] = 'circular'1842            si11843            explain_pickle in_current_sage=False:1844            si1 = {}1845            pg__reconstructor = unpickle_global('copy_reg', '_reconstructor')1846            pg_EmptyNewstyleClass = unpickle_global('sage.misc.explain_pickle', 'EmptyNewstyleClass')1847            pg_object = unpickle_global('__builtin__', 'object')1848            si2 = pg__reconstructor(pg_EmptyNewstyleClass, pg_object, None)1849            unpickle_build(si2, {'circular':si1})1850            si1[si2] = 'circular'1851            si11852            result: {EmptyNewstyleClass: 'circular'}1853        """1854        v = self.pop()1855        k = self.pop()1856        self._SETITEMS_helper([k, v])1857    def SETITEMS(self):1858        r"""1859        TESTS::1860            sage: import pickle1861            sage: from sage.misc.explain_pickle import *1862            sage: test_pickle(pickle.dumps({'a': 'b', 1r : 2r}, protocol=2))1863                0: \x80 PROTO      21864                2: }    EMPTY_DICT1865                3: q    BINPUT     01866                5: (    MARK1867                6: U        SHORT_BINSTRING 'a'1868                9: q        BINPUT     11869               11: U        SHORT_BINSTRING 'b'1870               14: q        BINPUT     21871               16: K        BININT1    11872               18: K        BININT1    21873               20: u        SETITEMS   (MARK at 5)1874               21: .    STOP1875            highest protocol among opcodes = 21876            explain_pickle in_current_sage=True/False:1877            {'a':'b', 1:2}1878            result: {'a': 'b', 1: 2}1879        Similar to the tests for SETITEM, we test recursive keys and values::1880            sage: recdict = {}1881            sage: recdict['Circular value'] = recdict1882            sage: key = EmptyOldstyleClass()1883            sage: key.recdict = recdict1884            sage: recdict[key] = 'circular_key'1885            sage: test_pickle(pickle.dumps(recdict, protocol=2))1886                0: \x80 PROTO      21887                2: }    EMPTY_DICT1888                3: q    BINPUT     01889                5: (    MARK1890                6: (        MARK1891                7: c            GLOBAL     'sage.misc.explain_pickle EmptyOldstyleClass'1892               52: q            BINPUT     11893               54: o            OBJ        (MARK at 6)1894               55: q        BINPUT     21895               57: }        EMPTY_DICT1896               58: q        BINPUT     31897               60: U        SHORT_BINSTRING 'recdict'1898               69: q        BINPUT     41899               71: h        BINGET     01900               73: s        SETITEM1901               74: b        BUILD1902               75: U        SHORT_BINSTRING 'circular_key'1903               89: q        BINPUT     51904               91: U        SHORT_BINSTRING 'Circular value'1905              107: q        BINPUT     61906              109: h        BINGET     01907              111: u        SETITEMS   (MARK at 5)1908              112: .    STOP1909            highest protocol among opcodes = 21910            explain_pickle in_current_sage=True:1911            si1 = {}1912            from types import InstanceType1913            from sage.misc.explain_pickle import EmptyOldstyleClass1914            si2 = InstanceType(EmptyOldstyleClass)1915            si2.__dict__['recdict'] = si11916            si1[si2] = 'circular_key'1917            si1['Circular value'] = si11918            si11919            explain_pickle in_current_sage=False:1920            si = {}1921            pg_EmptyOldstyleClass = unpickle_global('sage.misc.explain_pickle', 'EmptyOldstyleClass')1922            pg = unpickle_instantiate(pg_EmptyOldstyleClass, ())1923            unpickle_build(pg, {'recdict':si})1924            si[pg] = 'circular_key'1925            si['Circular value'] = si1926            si1927            result: {EmptyOldstyleClass: 'circular_key', 'Circular value': {...}}1928        """1929        slice = self.pop_to_mark()1930        self._SETITEMS_helper(slice)1931    def _SETITEMS_helper(self, slice):1932        r"""1933        TESTS::1934            sage: import pickle1935            sage: from sage.misc.explain_pickle import *1936            sage: test_pickle(pickle.dumps({'a': 'b'})) # indirect doctest1937                0: (    MARK1938                1: d        DICT       (MARK at 0)1939                2: p    PUT        01940                5: S    STRING     'a'1941               10: p    PUT        11942               13: S    STRING     'b'1943               18: p    PUT        21944               21: s    SETITEM1945               22: .    STOP1946            highest protocol among opcodes = 01947            explain_pickle in_current_sage=True/False:1948            {'a':'b'}1949            result: {'a': 'b'}            1950        """1951        updates = []1952        i = 01953        while i < len(slice):1954            k = slice[i]1955            v = slice[i+1]1956            # This marks d as immutable, if k or v happens to include d.1957            self.sib(k)1958            self.sib(v)1959            updates.append((k, v))1960            i += 21961        d = self.pop()1962        if self.is_mutable_pickle_object(d) and isinstance(d.value, PickleDict):1963            d.value = PickleDict(d.value.items + updates)1964            d.expression = self.sib.dict(d.value.items)1965        else:1966            d = self.sib(d)1967            for k, v in updates:1968                self.sib.command(d, self.sib.assign(d[k], v))1969        self.push(d)1970    def SHORT_BINSTRING(self, s):1971        r"""1972        TESTS::1973            sage: from sage.misc.explain_pickle import *1974            sage: test_pickle(dumps('hello', compress=False))1975                0: \x80 PROTO      21976                2: U    SHORT_BINSTRING 'hello'1977                9: q    BINPUT     11978               11: .    STOP1979            highest protocol among opcodes = 21980            explain_pickle in_current_sage=True/False:1981            'hello'1982            result: 'hello'1983        """1984        self.push(PickleObject(s, self.share(self.sib(s))))1985    def STOP(self):1986        r"""1987        TESTS::1988            sage: from pickle import *1989            sage: from sage.misc.explain_pickle import *1990            sage: test_pickle(EMPTY_TUPLE)1991                0: )    EMPTY_TUPLE1992                1: .    STOP1993            highest protocol among opcodes = 11994            explain_pickle in_current_sage=True/False:1995            ()1996            result: ()1997        """1998        self.stopped = True1999    def STRING(self, s):2000        r"""2001        TESTS::2002            sage: from sage.misc.explain_pickle import *2003            sage: test_pickle("S'Testing...'\n.")2004                0: S    STRING     'Testing...'2005               14: .    STOP2006            highest protocol among opcodes = 02007            explain_pickle in_current_sage=True/False:2008            'Testing...'2009            result: 'Testing...'2010        """2011        self.push(PickleObject(s, self.share(self.sib(s))))2012    def TUPLE(self):2013        r"""2014        TESTS::2015            sage: import pickle2016            sage: from sage.misc.explain_pickle import *2017            sage: test_pickle(pickle.dumps(('a',)))2018                0: (    MARK2019                1: S        STRING     'a'2020                6: p        PUT        02021                9: t        TUPLE      (MARK at 0)2022               10: p    PUT        12023               13: .    STOP2024            highest protocol among opcodes = 02025            explain_pickle in_current_sage=True/False:2026            ('a',)2027            result: ('a',)2028        We prefer to produce tuple literals, as above; but if the2029        tuple is recursive, we need a more complicated2030        construction. It used to be the case that the cPickle2031        unpickler couldn't handle this case, but that's no longer true2032        (see http://bugs.python.org/issue5794)::2033            sage: v = ([],)2034            sage: v[0].append(v)2035            sage: test_pickle(pickle.dumps(v))2036                0: (    MARK2037                1: (        MARK2038                2: l            LIST       (MARK at 1)2039                3: p        PUT        02040                6: (        MARK2041                7: g            GET        02042               10: t            TUPLE      (MARK at 6)2043               11: p        PUT        12044               14: a        APPEND2045               15: 0        POP2046               16: 0        POP        (MARK at 0)2047               17: g    GET        12048               20: .    STOP2049            highest protocol among opcodes = 02050            explain_pickle in_current_sage=True/False:2051            si1 = []2052            si2 = (si1,)2053            list.append(si1, si2)2054            si22055            result: ([(...)],)2056        """2057        v = self.pop_to_mark()2058        self.push(PickleObject(tuple(v), self.sib(tuple(v))))2059    def TUPLE1(self):2060        r"""2061        TESTS::2062            sage: from sage.misc.explain_pickle import *2063            sage: test_pickle(('a',))2064                0: \x80 PROTO      22065                2: U    SHORT_BINSTRING 'a'2066                5: \x85 TUPLE12067                6: q    BINPUT     12068                8: .    STOP2069            highest protocol among opcodes = 22070            explain_pickle in_current_sage=True/False:2071            ('a',)2072            result: ('a',)2073        """2074        v1 = self.pop()2075        self.push(PickleObject((v1,), self.sib((v1,))))2076        2077    def TUPLE2(self):2078        r"""2079        TESTS::2080            sage: from sage.misc.explain_pickle import *2081            sage: test_pickle(('a','b'))2082                0: \x80 PROTO      22083                2: U    SHORT_BINSTRING 'a'2084                5: U    SHORT_BINSTRING 'b'2085                8: \x86 TUPLE22086                9: q    BINPUT     12087               11: .    STOP2088            highest protocol among opcodes = 22089            explain_pickle in_current_sage=True/False:2090            ('a', 'b')2091            result: ('a', 'b')2092        """2093        v2 = self.pop()2094        v1 = self.pop()2095        self.push(PickleObject((v1, v2), self.sib((v1, v2))))2096        2097    def TUPLE3(self):2098        r"""2099        TESTS::2100            sage: from sage.misc.explain_pickle import *2101            sage: test_pickle(('a','b','c'))2102                0: \x80 PROTO      22103                2: U    SHORT_BINSTRING 'a'2104                5: U    SHORT_BINSTRING 'b'2105                8: U    SHORT_BINSTRING 'c'2106               11: \x87 TUPLE32107               12: q    BINPUT     12108               14: .    STOP2109            highest protocol among opcodes = 22110            explain_pickle in_current_sage=True/False:2111            ('a', 'b', 'c')2112            result: ('a', 'b', 'c')2113        """2114        v3 = self.pop()2115        v2 = self.pop()2116        v1 = self.pop()2117        self.push(PickleObject((v1, v2, v3), self.sib((v1, v2, v3))))2118    def UNICODE(self, s):2119        r"""2120        TESTS::2121            sage: import pickle2122            sage: from sage.misc.explain_pickle import *2123            sage: test_pickle(pickle.dumps(u'hi\u1234\U00012345'))2124                0: V    UNICODE    u'hi\u1234\U00012345'2125               20: p    PUT        02126               23: .    STOP2127            highest protocol among opcodes = 02128            explain_pickle in_current_sage=True/False:2129            u'hi\u1234\U00012345'2130            result: u'hi\u1234\U00012345'2131        """2132        self.push_and_share(self.sib(s))2133# def explain_picklejar(dir, catch_exceptions=True):2134#     r"""2135#     Given a directory or a .tar.bz2 of pickles, we unpickle each of2136#     them three times: once with cPickle, once with explain_pickle2137#     with in_current_sage=True, and once with explain_pickle2138#     with in_current_sage=False.2139#     We verify that each of these gives the same answer (where we check2140#     using repr(a)==repr(b), in case equality is not defined on all2141#     of these objects).2142#     INPUT::2143#         dir -- string; a directory or name of a .tar.bz2 file that2144#                decompresses to give a directory full of pickles.2145#         catch_exceptions -- boolean; default True: if True, then2146#                unpickling exceptions will be caught (and if all three2147#                unpicklers raise an exception, then that will be counted2148#                as a match).  If False, then exceptions will not be caught,2149#                and will terminate this function.2150#     EXAMPLES:2151#         sage: std = os.environ['SAGE_DATA'] + '/extcode/pickle_jar/pickle_jar.tar.bz2'2152#         sage: from sage.misc.explain_pickle import *2153#         sage: explain_picklejar(std) # long time (~45s on my computer)2154#         doctest:...: DeprecationWarning: Your data is stored in an old format. Please use the save() function to store your data in a more recent format.2155#         doctest:...: DeprecationWarning: Your data is stored in an old format. Please use the save() function to store your data in a more recent format.2156#         4... matches; 0 mismatches2157#     """2158#     # Largely copied from unpickle_all in sage_object.pyx2159#     from sage.structure.sage_object import load2160#     obj_at = re.compile('object at 0x[0-9a-f]+')2161#     n_success = 02162#     failed = []2163#     if dir.endswith('.tar.bz2'):2164#         # create a temporary directory2165#         from sage.misc.all import tmp_dir2166#         T = tmp_dir()2167#         # extract tarball to it2168#         os.system('cd "%s"; bunzip2 -c "%s" | tar fx - '%(T, os.path.abspath(dir)))2169#         # Now use the directory in the tarball instead of dir2170#         dir = T + "/" + os.listdir(T)[0]2171        2172#     for A in os.listdir(dir):2173#         if A.endswith('.sobj'):2174#             fn = dir + '/' + A2175#             try:2176#                 v1 = load(fn)2177#                 v1r = repr(v1)2178#             except Exception, msg:2179#                 # if not catch_exceptions: raise2180#                 v1r = 'error'2181#             try:2182#                 exp_current = explain_pickle(file=fn, in_current_sage=True)2183#                 import sys2184#                 sys.stderr.write(exp_current)2185#                 v2 = sage_eval(exp_current)2186#                 v2r = repr(v2)2187#             except Exception, msg:2188#                 if not catch_exceptions: raise2189#                 v2r = 'error'2190#             try:2191#                 exp_generic = explain_pickle(file=fn)2192#                 import sys2193#                 sys.stderr.write(exp_generic)2194#                 v3 = sage_eval(exp_generic)2195#                 v3r = repr(v3)2196#             except Exception, msg:2197#                 if not catch_exceptions: raise2198#                 v3r = 'error'2199#             v1r = obj_at.sub('object at 0x...', v1r)2200#             v2r = obj_at.sub('object at 0x...', v2r)2201#             v3r = obj_at.sub('object at 0x...', v3r)2202#             if v1r == v2r == v3r:2203#                 n_success += 12204#             else:2205#                 print "Mismatch on %s" % fn2206#                 print v1r, v2r, v3r2207#                 failed.append(A)2208#     print "%d matches; %d mismatches" % (n_success, len(failed))2209#     print '\n'.join(failed)2210# Helper routines for explain_pickle2211        2212def unpickle_newobj(klass, args):2213    r"""2214    Create a new object; this corresponds to the C code2215    klass->tp_new(klass, args, NULL).  Used by ``explain_pickle``.2216    EXAMPLES:2217        sage: unpickle_newobj(tuple, ([1, 2, 3],))2218        (1, 2, 3)2219    """2220    # We need to call klass->tp_new(klass, args, NULL).2221    # This is almost but not quite the same as klass.__new__(klass, *args).2222    # (I don't know exactly what the difference is, but when you try2223    # to unpickle a Sequence, cPickle -- which uses the former -- works,2224    # and pickle.py -- which uses the latter -- fails, with2225    # TypeError: sage.structure.sage_object.SageObject.__new__(Sequence) is not safe, use list.__new__()2226    # )2227    # It seems unlikely that you can implement this from pure-Python code --2228    # somewhat disturbingly, it actually is possible.  This shows how.2229    # (Using Cython would also work, of course; but this is cooler, and2230    # probably simpler.)2231    # This pickle is: load persistent object 0, load persistent object 1,2232    # NEWOBJ, STOP.2233    pickle = "P0\nP1\n\x81."2234    pers = [klass, args]2235    pers_load = lambda id: pers[int(id)]2236    from cStringIO import StringIO2237    import cPickle2238    unp = cPickle.Unpickler(StringIO(pickle))2239    unp.persistent_load = pers_load2240    return unp.load()2241    2242def unpickle_build(obj, state):2243    r"""2244    Set the state of an object.  Used by ``explain_pickle``.2245    EXAMPLES::2246        sage: from sage.misc.explain_pickle import *2247        sage: v = EmptyNewstyleClass()2248        sage: unpickle_build(v, {'hello': 42})2249        sage: v.hello2250        422251    """2252    setstate = getattr(obj, '__setstate__', None)2253    if setstate is not None:2254        setstate(state)2255        return2256    if isinstance(state, tuple) and len(state) == 2:2257        state, slots = state2258    else:2259        slots = None2260    if state is not None:2261        assert(isinstance(state, dict))2262        d = obj.__dict__2263        for k,v in state.iteritems():2264            d[k] = v2265    if slots is not None:2266        assert(isinstance(slots, dict))2267        for k,v in slots.iteritems():2268            setattr(obj, k, v)2269def unpickle_instantiate(fn, args):2270    r"""2271    Instantiate a new object of class fn with arguments args.  Almost always2272    equivalent to ``fn(*args)``.  Used by ``explain_pickle``.2273    EXAMPLES::2274        sage: unpickle_instantiate(Integer, ('42',))2275        422276    """2277    if isinstance(fn, types.ClassType) and len(args) == 0 and not hasattr(fn, '__getinitargs__'):2278        return types.InstanceType(fn)2279    2280    return fn(*args)2281unpickle_persistent_loader = None2282def unpickle_persistent(s):2283    r"""2284    Takes an integer index and returns the persistent object with that2285    index; works by calling whatever callable is stored in2286    unpickle_persistent_loader.  Used by ``explain_pickle``.2287    EXAMPLES::2288        sage: import sage.misc.explain_pickle2289        sage: sage.misc.explain_pickle.unpickle_persistent_loader = lambda n: n+72290        sage: unpickle_persistent(35)2291        422292    """2293    return unpickle_persistent_loader(s)2294def unpickle_extension(code):2295    r"""2296    Takes an integer index and returns the extension object with that2297    index.  Used by ``explain_pickle``.2298    EXAMPLES::2299        sage: from copy_reg import *2300        sage: add_extension('sage.misc.explain_pickle', 'EmptyNewstyleClass', 42)2301        sage: unpickle_extension(42)2302        <class 'sage.misc.explain_pickle.EmptyNewstyleClass'>2303        sage: remove_extension('sage.misc.explain_pickle', 'EmptyNewstyleClass', 42)2304    """2305    from copy_reg import _inverted_registry, _extension_cache2306    # copied from .get_extension() in pickle.py2307    nil = []2308    obj = _extension_cache.get(code, nil)2309    if obj is not nil:2310        return obj2311    key = _inverted_registry.get(code)2312    if not key:2313        raise ValueError("unregistered extension code %d" % code)2314    obj = unpickle_global(*key)2315    _extension_cache[code] = obj2316    return obj2317def unpickle_appends(lst, vals):2318    r"""2319    Given a list (or list-like object) and a sequence of values, appends the2320    values to the end of the list.  This is careful to do so using the2321    exact same technique that cPickle would use.  Used by ``explain_pickle``.2322    EXAMPLES::2323        sage: v = []2324        sage: unpickle_appends(v, (1, 2, 3))2325        sage: v2326        [1, 2, 3]2327    """2328    if isinstance(lst, list):2329        # If lst is a list (or a subtype of list)2330        list.extend(lst, vals)2331    else:2332        append = lst.append2333        for v in vals:2334            append(v)2335def test_pickle(p, verbose_eval=False, pedantic=False, args=()):2336    r"""2337    Tests explain_pickle on a given pickle p.  p can be:2338    - a string containing an uncompressed pickle (which will always end 2339      with a '.')2340    - a string containing a pickle fragment (not ending with '.')2341      test_pickle will synthesize a pickle that will push args onto 2342      the stack (using persistent IDs), run the pickle fragment, and then2343      STOP (if the string 'mark' occurs in args, then a mark will be pushed)2344    - an arbitrary object; test_pickle will pickle the object2345    Once it has a pickle, test_pickle will print the pickle's2346    disassembly, run explain_pickle with in_current_sage=True and2347    False, print the results, evaluate the results, unpickle the2348    object with cPickle, and compare all three results.2349    If verbose_eval is True, then test_pickle will print messages2350    before evaluating the pickles; this is to allow for tests where2351    the unpickling prints messages (to verify that the same operations2352    occur in all cases).2353    EXAMPLES::2354        sage: from sage.misc.explain_pickle import *2355        sage: test_pickle(['a'])2356            0: \x80 PROTO      22357            2: ]    EMPTY_LIST2358            3: q    BINPUT     12359            5: U    SHORT_BINSTRING 'a'2360            8: a    APPEND2361            9: .    STOP2362        highest protocol among opcodes = 22363        explain_pickle in_current_sage=True/False:2364        ['a']2365        result: ['a']2366    """2367    start = ''2368    for n in range(len(args)):2369        a = args[n]...

test_pickle_serializer.py

Source:test_pickle_serializer.py

1import unittest2from os import path, curdir3from serializer.serializers.pickle_serializer import PickleSerializer4from test_data import data, get_answer_files, get_test_files5class PickleSerializerTestCase(unittest.TestCase):6    def setUp(self):7        self.test_pickle_ser = PickleSerializer()8        self.path_dir = path.join(9                    path.abspath(curdir),10                    'test_answers',11                    'test_pickle'12                    )13        self.data = data14        self.answer_files = get_answer_files('pickle')15        self.pickle_files = get_test_files('pickle')16    def test_dump(self):17        for value, test_pickle in zip(18                                    self.data,19                                    self.pickle_files):20            self.test_pickle_ser.dump(21                value, path.join(self.path_dir, test_pickle))22            self.assertIsNotNone(23                path.getsize(path.join(self.path_dir, test_pickle))24            )25        self.assertIsNone(26            self.test_pickle_ser.dump(None, self.data[:-1])27        )28    def test_dumps(self):29        for value, test_pickle in zip(self.data[:-4],30                                      self.pickle_files[:-4]):31            with open(path.join(32                    self.path_dir, test_pickle), 'rb') as rf:33                answer = rf.read()34            self.assertEqual(35                self.test_pickle_ser.dumps(value), answer36            )37        self.assertIsNone(38            self.test_pickle_ser.dump(self.data[:-1], self.data[:-1])39        )40    def test_load(self):41        for value, test_pickle in zip(self.data[:-4],42                                    self.pickle_files[:-4]):43            self.assertEqual(self.test_pickle_ser.load(44                    path.join(self.path_dir, test_pickle)), value)45        func = self.test_pickle_ser.load(path.join(46            self.path_dir, self.pickle_files[4]),47            convert=True)48        self.assertEqual(type(func), dict)49        simple_class = self.test_pickle_ser.load(path.join(50                    self.path_dir, self.pickle_files[5]))51        self.assertEqual(type(simple_class), type)52        complex_class = self.test_pickle_ser.load(path.join(53                    self.path_dir, self.pickle_files[6]))54        self.assertTrue(hasattr(complex_class, 'func_in_class'))55        complex_object = self.test_pickle_ser.load(path.join(56                    self.path_dir, self.pickle_files[7]))57        self.assertEqual(complex_object.other.string, 'string')58        self.assertIsNone(self.test_pickle_ser.load('incorrect_path'))59    def test_loads(self):60        for value, test_pickle in zip(self.data[:-4],61                                      self.pickle_files[:-4]):62            with open(path.join(63                    self.path_dir,64                    test_pickle), 'rb') as rf:65                data_ = rf.read()66            self.assertEqual(67                self.test_pickle_ser.loads(data_), value68                    )69        def get_data():70            for data_file in self.pickle_files[4:]:71                with open(path.join(72                        self.path_dir,73                        data_file), 'rb') as rf:74                    data_ = rf.read()75                yield data_76        data_ = get_data()77        func = self.test_pickle_ser.loads(next(data_))78        self.assertEqual(func(12), 101)79        simple_class = self.test_pickle_ser.loads(next(data_))80        self.assertEqual(type(simple_class), type)81        complex_class = self.test_pickle_ser.loads(next(data_))82        self.assertTrue(hasattr(complex_class, 'func_in_class'))83        complex_object = self.test_pickle_ser.loads(next(data_))84        self.assertEqual(complex_object.other.string, 'string')85        self.assertIsNone(self.test_pickle_ser.loads('bad_data'))86if __name__ == "__main__":...

test_sva_pickle.py

Source:test_sva_pickle.py

...16                                        e3.Vector3d.Random())17    rb = sva.RBInertiad(3., e3.Vector3d.Random(), e3.Matrix3d.Random())18    ab = sva.ABInertiad(e3.Matrix3d.Random(), e3.Matrix3d.Random(),19                        e3.Matrix3d.Random())20    def test_pickle(v):21      pickled = pickle.dumps(v)22      v2 = pickle.loads(pickled)23      self.assertEqual(v, v2)24    test_pickle(mv)25    test_pickle(fv)26    test_pickle(pt)27    test_pickle(rb)...

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