ÿØÿà JFIF    ÿÛ „ !.%+&8&+/1555$;@;4?.451 4,$,44444444444414444444444444444444444444444444444444ÿÀ  á á" ÿÄ     ÿÄ ?    !1AQaq"2‘¡±ÁðBRbrÑá#‚’¢²3S CñÿÄ   ÿÄ !    !1QAa‘2ÿÚ   ? 5˜Z¯V¦cø)›t/? z¨±>Õ5€¶‹Á¤·¼z¼Ü¬+ñ®v¤¨_ˆR­BFn©—˜ý®ç̝P8gýt·ÉSTŦˆìät?þé¼íìN/Þa)ì–í6ô… Ï¿øÃj´¿KÇü]ÿ ªô¹-eKànëÕHTx}ýSÜ›ÿ ”7Ø×&µ<¦  ¥ÑO¶[Ù¯ä¨ÞÃÿ PZ-¬;#õ|•oaÿ ©CìÞz3˜öː/¤­ñTûIØ}š^ mÓ%ªxˆ¥ÉŸu=Z+ISe¿45™¼u;ú&WØ÷€æßQ™®{|íx*TC“#ZŠìZ§²‹ 6pv…³¿¡äª*áZÐ%ÒOáˆo"x«OHk w±æ+¬V(kMúŸ5Vö«$ ÁrÏbàb57/luR ¸ÑÛj Òµì`Ðœq­û žICÀÊ•©4€Âcà¨Ï€O´<èÐ:›ù(Ë^L8þ‘ÍÌ#¸Ð_Ì©ÙK(Öz 4¬û+¸;ü’V’84‘¬ÃŽ:[â‡ÔÌáõp¢~§ªlæ£ö{®G>J¼"°‡7¯ÆÉèßû ‹É‹§ÁòÃýâßî ^ƾÙõ‹×óH#«LP½ïX=xÑÍ$|W?•~• îëÔ©ª‹ {ÝT…Kÿ ”hûâá)J*ö˜–ÔU;iÇ€/ ÆþjóZ\ýwØ=Ìm ºèËL9 ýèÆð/¨’¥öo=nË.%Îì ŽÕ¯È|{Oj²ƒE6e/ßdÄõ²Ìâ1O®ò×TsəԸhOMýíMˆ¿¼H˜l²,7Â¥#MF/Úf°Ö½± ¸–dr‹NýÊ íjqx{œÉ ä-È ¦ øÄër¨q°ð †nцýÑÄÆ’mä…n<0È™;ÁÝá¯ÁZƒ7FÀmì­ É&9ˆîéi¶ùN§Y• ÃZãAâ?•‡©‰ , ó¾IŸŠc1 4â&y­&pŠ­6;M À 0¹qç»p.á …ŸÅáK@%6·y6ƒ‰3?”úºŽ‰éX5ªPT §µ!=Mž«Ú½‹ÅgÂSâÉaþÓoö–¯ÁÔìR>5éÿ üs¶ÆUcÌ kÇR ]ÿ ù¬¼«VŽ;Â|‡~¢¦”ÏÅ°æ {L™Õ°Óv¹ò¸írŽ¡×¢CÃ!íVÕ {¶»sŒNPg/ "uÕbkm²“$ďå¿é¹§°½æz¯6 †s¿!s–wÚÝ“™Œ °.ûj>·+™Òa…©Œ&rÝÎtÛë긪Ît’LAVp%c Úý[ÄzJ¾ÇàXXç@˜ó<êL]·T˜¾¥1Ó©V‡g´æ½¦Ý@¹óø!_@´ÞâSÁ —S3™•& ]@JHÚý©ZŽ €×æÔr»Áf!‡yÞ4Mv*èÓã_{‘åóUuљØ«Oïé*®EvÑ Œ÷‡U \"㪒ÍK+À 4“M¡ï:0¥5í!'<@î´”>Ç»&Z–ïCCV˜Ì5Šo&îhè.žû |ÓK©h$s6KìŒëã)¹hI¦GïOåóI;ììü#É$Š0…Ææ¥TØ.5­¾gn´ “ÂÖ\:hœ89G)J@„}œ:’Ò{/Š"¦_Æ×7Æ3VÇŠÊa]ÚŒÙ€Ä–=®uÁßâACZƒ§§£ Qnâ:«,×{tyø¬iÛcœÜÄ€H½ÄÍCk´÷šß .W'b¤Íåh]÷€=,Žv×cÚEÚHXJX¶îo¨FÒtèöŸ>ªª6[J®Fµ£sGÁeqõfe\íjÒÐïÄÐGˆe1Ø‹.Ø”‘Ëuø Y­ˆÜ ŽG|zùªüMpDnQWÄ”%JŠ™)â*p@Örš«ÕT2Ð%ˆG#ª„ ·¤!°ŸOTÂT¸aÚ%4&h™LµšØüÐ.F¿²ÐÞ_Ç‚¾ÅÃaÜ÷09Æ q€öy˜v‡85õN÷]¬äѼóS{°_MŽ¬úÔ#°Ç¸0åÞè2ëôPcvÆw9®ií1Ä8F™˜à‰´+‰Ik1òÝ7“Ñ×ÒsÝ\x‚h`ÞÑ`ó"|µEcý£n˜h`}GÞ !±ù²Ápü²ß6 0ïi󜵩SÈÇ7˜-ÕURO˜¦´f$ªž-Í6(œ}<„ éc øs]ŽŽ„*—¾ ìdŽ„)méª\¿êÎIg¾ØÞ~I#C/¼¼´EÁÈŽi8“©õådô·>euä ƒ'Ê×लR1ÉJE1ÐAát`t;ÇР%Ý<‡¥„ÍÆ`×Oyó)õiI€ñQaŸ4Ûù\áàaÃÔ¹HÃu¹*k€¦<„e S‡&õÏ B!ŽhüÞ`yj}mªf×\¿ Ç~æ­9‡û\՞Ǖg²1Žû5V7 !àöšm° c`ܬøÇìµÒ'P"?…´Ö,"§^•õŽ¨sÔ)6˜sæéÍR¼ ò|Sl”‹7 nPW Gòú÷½§O¯‡„l¡kSÞŒr½PÊ@æ¢pŽ-mÿ #Ÿ˜Àº¶Áä¦;ïÔæ$1££`“Õ>„—·ž)ßð³ñ#Ï Ô$¶œ‰ÊE‹À;÷º ¯«P:Ñ”8–IÊtpÞ3ª“>ê“þës4ò2OÏÕ­±zô†Õ§‰.÷ä¸;¿˜“'œ›žª}«Œ{ª±Ì 9ÔóÞÕ‡0 $íWV3Üì¬ —@kÝ4@¿r¼±½¬™›?øØæ´'Áé®CË3-g$˜ö‡×auÚi´Žp/êÛ æF›Ú2v‹ã¿¿,nB1̨ƃqÞa5͝@&Æû“él÷ \C²½UÍc ¯k×¢U ÖéQå™—-r wô ÞÏ<Ò=&=ÿ Ôê Òêˈt,i—;LîÜ á¸*ÚÃ1$êL•LÍ <É)ýÐà’ ;F™{ƒ™˜€&'}‚ãÄK`¡ÞT@I;®žZóè‚s’7®°›+§O­Åq©é»²9<Ô J ¼9O’HL»Ùïì¸rk¼Ž_ý‘TŸu[²ßÚŒ·ü÷B%¯E ŸÔX5êO´ Ç•€’I0 ÉJX` ñ¹õ%;µŸD‘«´€àwÒ™U ûئžÖö\×®×´8 ½‡ºÐÆÓ§?Àkmœ=;d5*@-ì0F Rªýš[Ü6âö̃ڸr*KA9· u*µæ£?U¸Âêí†8@¦X4 e-ò„0s{ HâUpU?¼mñRa°®a%Ð'tÉ×’\¾ÊÉ]t›h>·(Ë@R¼¡Ãt h}’O÷au<+nT…Ö…MӐ??Óe95 q>í/;&JSû °¯ÊéÞ øƒ*Ã2½Ài&:nôUl=¾¿5eˆ3”ñc|Ú2V”>„»&eE;«ÚäC p¢Û úy 9š[ŒÌx¼擼A&DåÒ¯ˆ¤ÀÌ;"˜ ÏQä¸åhÊ}Ûq«Û0WžÒ|»€ø®öCm5•\ÇÀ§Pe3£]0ÃàLDÉ‰1øªxjgwT‚÷¿LΨK‹›ùs—xˆÜ±µ kæ¸f‰‰ÜGk/LÛØ6d9ò¶ùA{ƒA3š/¬D¬khÓk‰`˜"㯒r¿±Óã jx‡°e}<Ñø\3y:'À•/h½Í€Ç4~g ?Û(¼]v‘ªlKÎâ~?O‚W%{Ì:“'©úNq¾›úo(X’¥¯ˆ nFê{Ç€ü?º'ë ø‹ì Þ09ŒÌç9Æ —ËC`j@ÓÄ(+a‹un¸#ÂꟋ{K`‘ÑÍÍ'à´»/Û,KW;Þ4²þð ï Nm|~fGÏ(…³Ã)«1ö­Õ ¥‡¨©ƒÃ™ü-s=à=U66Ï«Ýc蓦W¹íž®›nÔ%êÇìŒ<#Ü×84ån®Ð ÒåOC` ñânÑs‡¢ç 1õ%Îhì½Ã½® e:ݼUZo™`  ÅZŸŒÊ«ê1ÏÄo$q¹Þ€©ˆhÐÉä¯ñ[!…Ú˜àJ:x2$Íß&PåT£6ç— ‡Í*4Ýšçjÿ ‰É nófÐ ó(L5C•åÆ\rMÒ@ò }y-W}™üýVù—ú¢=Ù”c®‘< M ž ´Phr ¦©TD ‘ù.$´÷O‡‘V2Æò.=IUŒ=ž‡â¬i™aþÓåÙ?òUø'ØÖ•.~* šTŒ!•-×áºTâ®ä#õü'´ eýlYÅÓeÕKÂrT"CÚ@u!Óxƒ{š3€}1¿(r}%«nËamjÑ%ÑNEò v ˜à  σöK³,*º.àzù¨™Ó ÚçâU¦*¿ 9{%Ö¹ njûdaXöb) kÛƱûÓ\°M7ˆÂ=û›ç¿Ã‚­V»Cg–8ÙêE- j)k$º`Ã-ùEýeBÆÇ]c¡°ñty&Òd0nõ'¡W+ƒ*|–øµFa\GQªEAÔp5\Ǽ·¼Ç8·õ -â§Ú[ ‡ uZeÖ 3}×d'+¹:ð+K†Û®s!Ï$úe€<Û”x)1»a­¡LC]¸µík…ÚàA»AYº{†ªS[¦5HÒ7ù --,ísòDØ€èk ÞÀîÜ ò@â( ËNˆë›4ô½•/¦o‡€Û7 ê•ÆêòðÜy'Án½µ á˜ݦ ndeo…[ì¶Ê,¥R³Ä=À±—–ß;£™´ñSâ*g§”ïaið‘Jå~™ÓÞ ß³Õ¢»8x埒²52>AÊb&-÷\7´éÄù€T˜,w;3{ï˜k…à¹ÄqÀ«œ{€\ ˆ¾[´¨јr &Úé„Ívˆ±8†¿]|¬ņ4I×pÞS1ÈÖz‰#Ìv‡G!YNògñ:màTz¢Ý1ô©^O=~ë|5Bã™ç•¼µõ•bÆ@úÕS¬ÈŒ#¬zünrŸ û” Z²•ï›èðV"ÁHÚý©wÝ €7¼Ìu1hÑa3Éä û f$o¿É ™Ú›ÝçnpÒ3äÌ3†Í§,Äï]$‰/pê †«À¼¸e9­Æê_C]žƒ·ý·frÁN«, E=›Çq -‰öŒ:aÏ¿±í&£Í:-} 84‘ÿ eƒQÑeëSsuiA ³g㟥ú£?ÿ ʼn*”“÷aühe:ÊWa@ÒÞk±eØ] F Ô—r.åä˜ @ö¥ªZoÐýYL·¥S²G/‡ñ <~*ZÆ´è>JlòàÛƽÿ 窘ìGN¢:I®KšJp/`íIÁÀõ#Ä-€ö­šµŒoF4|ÆQØÆ@Ì|£Ô…¢À{9˜è½Üó›€ôYÒÎYsið;ís¤€à²ˆ‚4qÉVŒI$ ‰"° æµ8cXGjœˏ¡Aâý•ËÜ¢ûï e·çLx']á"oÅÎê3¯Ç—¹”ó0nå‚âg{Œñ> S´˜îè°g238‚ãköÝfÚd´6Ò€;ò÷±¢™¼›º ¢Æ'¥Ðx'e¬ç ]bÈÆV¢ó‹kýBO ðÊâ$Ÿ!×T 3Mýמ žìٍàÌü‘8÷€àæØ8æ©6‰©L´«…oãpð„~Çk‰!ñ;‹”ÛžÍ àž±z Ÿôû øŸÝužÏ;ÿ #|u6™Þ¬ÚˆÐõA4¶â|ôl|Ê2ŽÇ¤ÝÅÇY.<#Aí.k§hóF‚”Y; 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Þ'¯°ÌME[YéïĵÂCå½ Ué©Áû'Ê9%eÔðNU”ë‘ÌsD3/®+UI˜9h.WC”빓$#:pz:YÓ ¿xž* ³$Í +$kñAŠ‹†¢ Uê>¸)_š¬÷©ßAÂÔb9ÇU ¯¾á•9¯ÏÏ÷O÷¼¼Fähal1‰3Ì[Ïr•´UCksNÐ] R‘¸¥H+§Šé†c©vÖÞ0iÓ76s†î!§=ß ¼~Ô'°Ãmäoäš³ªøi1úÉ)³yV8 CLÄØÁ‘WYïi€H6ÖÑiámø^ÈY´°Ñ7¥Û*—Ñ©L«Qƒï—Ùrÿ ›£Ð*š¸ˆL©ˆ$ˆ ÷¾D§9È®«qbqC)–ˆïv´çñsÑVT­Ø, <àïºÀO«Jý·õ àfPìð .wFšir´þ’2_Y *Æ€x\« ì€9š@ Ž|F⇥ˆkZ@hÖÄ0t¿-<“‹qµ¾*ZL¤Ú)&BJpÓF5=$„at*Zš$’ÑtdûÝRI1 2Ž‰$€$I$#‰SÞ’Hë¬ï;Á$¡t$’`<(ñÇt)$‡Ð.Êf¢X’Kt=Éé$‚ˆªè¢oÝëòI%Rgcª÷ŠyI%¡‰ÿ !ñ)´õ $¤ Ô’IIGÿÙ"""Unit tests for the copy module.""" import copy import copyreg import weakref import abc from operator import le, lt, ge, gt, eq, ne import unittest from test import support order_comparisons = le, lt, ge, gt equality_comparisons = eq, ne comparisons = order_comparisons + equality_comparisons class TestCopy(unittest.TestCase): # Attempt full line coverage of copy.py from top to bottom def test_exceptions(self): self.assertIs(copy.Error, copy.error) self.assertTrue(issubclass(copy.Error, Exception)) # The copy() method def test_copy_basic(self): x = 42 y = copy.copy(x) self.assertEqual(x, y) def test_copy_copy(self): class C(object): def __init__(self, foo): self.foo = foo def __copy__(self): return C(self.foo) x = C(42) y = copy.copy(x) self.assertEqual(y.__class__, x.__class__) self.assertEqual(y.foo, x.foo) def test_copy_registry(self): class C(object): def __new__(cls, foo): obj = object.__new__(cls) obj.foo = foo return obj def pickle_C(obj): return (C, (obj.foo,)) x = C(42) self.assertRaises(TypeError, copy.copy, x) copyreg.pickle(C, pickle_C, C) y = copy.copy(x) def test_copy_reduce_ex(self): class C(object): def __reduce_ex__(self, proto): c.append(1) return "" def __reduce__(self): self.fail("shouldn't call this") c = [] x = C() y = copy.copy(x) self.assertIs(y, x) self.assertEqual(c, [1]) def test_copy_reduce(self): class C(object): def __reduce__(self): c.append(1) return "" c = [] x = C() y = copy.copy(x) self.assertIs(y, x) self.assertEqual(c, [1]) def test_copy_cant(self): class C(object): def __getattribute__(self, name): if name.startswith("__reduce"): raise AttributeError(name) return object.__getattribute__(self, name) x = C() self.assertRaises(copy.Error, copy.copy, x) # Type-specific _copy_xxx() methods def test_copy_atomic(self): class Classic: pass class NewStyle(object): pass def f(): pass class WithMetaclass(metaclass=abc.ABCMeta): pass tests = [None, ..., NotImplemented, 42, 2**100, 3.14, True, False, 1j, "hello", "hello\u1234", f.__code__, b"world", bytes(range(256)), range(10), slice(1, 10, 2), NewStyle, Classic, max, WithMetaclass, property()] for x in tests: self.assertIs(copy.copy(x), x) def test_copy_list(self): x = [1, 2, 3] y = copy.copy(x) self.assertEqual(y, x) self.assertIsNot(y, x) x = [] y = copy.copy(x) self.assertEqual(y, x) self.assertIsNot(y, x) def test_copy_tuple(self): x = (1, 2, 3) self.assertIs(copy.copy(x), x) x = () self.assertIs(copy.copy(x), x) x = (1, 2, 3, []) self.assertIs(copy.copy(x), x) def test_copy_dict(self): x = {"foo": 1, "bar": 2} y = copy.copy(x) self.assertEqual(y, x) self.assertIsNot(y, x) x = {} y = copy.copy(x) self.assertEqual(y, x) self.assertIsNot(y, x) def test_copy_set(self): x = {1, 2, 3} y = copy.copy(x) self.assertEqual(y, x) self.assertIsNot(y, x) x = set() y = copy.copy(x) self.assertEqual(y, x) self.assertIsNot(y, x) def test_copy_frozenset(self): x = frozenset({1, 2, 3}) self.assertIs(copy.copy(x), x) x = frozenset() self.assertIs(copy.copy(x), x) def test_copy_bytearray(self): x = bytearray(b'abc') y = copy.copy(x) self.assertEqual(y, x) self.assertIsNot(y, x) x = bytearray() y = copy.copy(x) self.assertEqual(y, x) self.assertIsNot(y, x) def test_copy_inst_vanilla(self): class C: def __init__(self, foo): self.foo = foo def __eq__(self, other): return self.foo == other.foo x = C(42) self.assertEqual(copy.copy(x), x) def test_copy_inst_copy(self): class C: def __init__(self, foo): self.foo = foo def __copy__(self): return C(self.foo) def __eq__(self, other): return self.foo == other.foo x = C(42) self.assertEqual(copy.copy(x), x) def test_copy_inst_getinitargs(self): class C: def __init__(self, foo): self.foo = foo def __getinitargs__(self): return (self.foo,) def __eq__(self, other): return self.foo == other.foo x = C(42) self.assertEqual(copy.copy(x), x) def test_copy_inst_getnewargs(self): class C(int): def __new__(cls, foo): self = int.__new__(cls) self.foo = foo return self def __getnewargs__(self): return self.foo, def __eq__(self, other): return self.foo == other.foo x = C(42) y = copy.copy(x) self.assertIsInstance(y, C) self.assertEqual(y, x) self.assertIsNot(y, x) self.assertEqual(y.foo, x.foo) def test_copy_inst_getnewargs_ex(self): class C(int): def __new__(cls, *, foo): self = int.__new__(cls) self.foo = foo return self def __getnewargs_ex__(self): return (), {'foo': self.foo} def __eq__(self, other): return self.foo == other.foo x = C(foo=42) y = copy.copy(x) self.assertIsInstance(y, C) self.assertEqual(y, x) self.assertIsNot(y, x) self.assertEqual(y.foo, x.foo) def test_copy_inst_getstate(self): class C: def __init__(self, foo): self.foo = foo def __getstate__(self): return {"foo": self.foo} def __eq__(self, other): return self.foo == other.foo x = C(42) self.assertEqual(copy.copy(x), x) def test_copy_inst_setstate(self): class C: def __init__(self, foo): self.foo = foo def __setstate__(self, state): self.foo = state["foo"] def __eq__(self, other): return self.foo == other.foo x = C(42) self.assertEqual(copy.copy(x), x) def test_copy_inst_getstate_setstate(self): class C: def __init__(self, foo): self.foo = foo def __getstate__(self): return self.foo def __setstate__(self, state): self.foo = state def __eq__(self, other): return self.foo == other.foo x = C(42) self.assertEqual(copy.copy(x), x) # State with boolean value is false (issue #25718) x = C(0.0) self.assertEqual(copy.copy(x), x) # The deepcopy() method def test_deepcopy_basic(self): x = 42 y = copy.deepcopy(x) self.assertEqual(y, x) def test_deepcopy_memo(self): # Tests of reflexive objects are under type-specific sections below. # This tests only repetitions of objects. x = [] x = [x, x] y = copy.deepcopy(x) self.assertEqual(y, x) self.assertIsNot(y, x) self.assertIsNot(y[0], x[0]) self.assertIs(y[0], y[1]) def test_deepcopy_issubclass(self): # XXX Note: there's no way to test the TypeError coming out of # issubclass() -- this can only happen when an extension # module defines a "type" that doesn't formally inherit from # type. class Meta(type): pass class C(metaclass=Meta): pass self.assertEqual(copy.deepcopy(C), C) def test_deepcopy_deepcopy(self): class C(object): def __init__(self, foo): self.foo = foo def __deepcopy__(self, memo=None): return C(self.foo) x = C(42) y = copy.deepcopy(x) self.assertEqual(y.__class__, x.__class__) self.assertEqual(y.foo, x.foo) def test_deepcopy_registry(self): class C(object): def __new__(cls, foo): obj = object.__new__(cls) obj.foo = foo return obj def pickle_C(obj): return (C, (obj.foo,)) x = C(42) self.assertRaises(TypeError, copy.deepcopy, x) copyreg.pickle(C, pickle_C, C) y = copy.deepcopy(x) def test_deepcopy_reduce_ex(self): class C(object): def __reduce_ex__(self, proto): c.append(1) return "" def __reduce__(self): self.fail("shouldn't call this") c = [] x = C() y = copy.deepcopy(x) self.assertIs(y, x) self.assertEqual(c, [1]) def test_deepcopy_reduce(self): class C(object): def __reduce__(self): c.append(1) return "" c = [] x = C() y = copy.deepcopy(x) self.assertIs(y, x) self.assertEqual(c, [1]) def test_deepcopy_cant(self): class C(object): def __getattribute__(self, name): if name.startswith("__reduce"): raise AttributeError(name) return object.__getattribute__(self, name) x = C() self.assertRaises(copy.Error, copy.deepcopy, x) # Type-specific _deepcopy_xxx() methods def test_deepcopy_atomic(self): class Classic: pass class NewStyle(object): pass def f(): pass tests = [None, 42, 2**100, 3.14, True, False, 1j, "hello", "hello\u1234", f.__code__, NewStyle, Classic, max, property()] for x in tests: self.assertIs(copy.deepcopy(x), x) def test_deepcopy_list(self): x = [[1, 2], 3] y = copy.deepcopy(x) self.assertEqual(y, x) self.assertIsNot(x, y) self.assertIsNot(x[0], y[0]) def test_deepcopy_reflexive_list(self): x = [] x.append(x) y = copy.deepcopy(x) for op in comparisons: self.assertRaises(RecursionError, op, y, x) self.assertIsNot(y, x) self.assertIs(y[0], y) self.assertEqual(len(y), 1) def test_deepcopy_empty_tuple(self): x = () y = copy.deepcopy(x) self.assertIs(x, y) def test_deepcopy_tuple(self): x = ([1, 2], 3) y = copy.deepcopy(x) self.assertEqual(y, x) self.assertIsNot(x, y) self.assertIsNot(x[0], y[0]) def test_deepcopy_tuple_of_immutables(self): x = ((1, 2), 3) y = copy.deepcopy(x) self.assertIs(x, y) def test_deepcopy_reflexive_tuple(self): x = ([],) x[0].append(x) y = copy.deepcopy(x) for op in comparisons: self.assertRaises(RecursionError, op, y, x) self.assertIsNot(y, x) self.assertIsNot(y[0], x[0]) self.assertIs(y[0][0], y) def test_deepcopy_dict(self): x = {"foo": [1, 2], "bar": 3} y = copy.deepcopy(x) self.assertEqual(y, x) self.assertIsNot(x, y) self.assertIsNot(x["foo"], y["foo"]) def test_deepcopy_reflexive_dict(self): x = {} x['foo'] = x y = copy.deepcopy(x) for op in order_comparisons: self.assertRaises(TypeError, op, y, x) for op in equality_comparisons: self.assertRaises(RecursionError, op, y, x) self.assertIsNot(y, x) self.assertIs(y['foo'], y) self.assertEqual(len(y), 1) def test_deepcopy_keepalive(self): memo = {} x = [] y = copy.deepcopy(x, memo) self.assertIs(memo[id(memo)][0], x) def test_deepcopy_dont_memo_immutable(self): memo = {} x = [1, 2, 3, 4] y = copy.deepcopy(x, memo) self.assertEqual(y, x) # There's the entry for the new list, and the keep alive. self.assertEqual(len(memo), 2) memo = {} x = [(1, 2)] y = copy.deepcopy(x, memo) self.assertEqual(y, x) # Tuples with immutable contents are immutable for deepcopy. self.assertEqual(len(memo), 2) def test_deepcopy_inst_vanilla(self): class C: def __init__(self, foo): self.foo = foo def __eq__(self, other): return self.foo == other.foo x = C([42]) y = copy.deepcopy(x) self.assertEqual(y, x) self.assertIsNot(y.foo, x.foo) def test_deepcopy_inst_deepcopy(self): class C: def __init__(self, foo): self.foo = foo def __deepcopy__(self, memo): return C(copy.deepcopy(self.foo, memo)) def __eq__(self, other): return self.foo == other.foo x = C([42]) y = copy.deepcopy(x) self.assertEqual(y, x) self.assertIsNot(y, x) self.assertIsNot(y.foo, x.foo) def test_deepcopy_inst_getinitargs(self): class C: def __init__(self, foo): self.foo = foo def __getinitargs__(self): return (self.foo,) def __eq__(self, other): return self.foo == other.foo x = C([42]) y = copy.deepcopy(x) self.assertEqual(y, x) self.assertIsNot(y, x) self.assertIsNot(y.foo, x.foo) def test_deepcopy_inst_getnewargs(self): class C(int): def __new__(cls, foo): self = int.__new__(cls) self.foo = foo return self def __getnewargs__(self): return self.foo, def __eq__(self, other): return self.foo == other.foo x = C([42]) y = copy.deepcopy(x) self.assertIsInstance(y, C) self.assertEqual(y, x) self.assertIsNot(y, x) self.assertEqual(y.foo, x.foo) self.assertIsNot(y.foo, x.foo) def test_deepcopy_inst_getnewargs_ex(self): class C(int): def __new__(cls, *, foo): self = int.__new__(cls) self.foo = foo return self def __getnewargs_ex__(self): return (), {'foo': self.foo} def __eq__(self, other): return self.foo == other.foo x = C(foo=[42]) y = copy.deepcopy(x) self.assertIsInstance(y, C) self.assertEqual(y, x) self.assertIsNot(y, x) self.assertEqual(y.foo, x.foo) self.assertIsNot(y.foo, x.foo) def test_deepcopy_inst_getstate(self): class C: def __init__(self, foo): self.foo = foo def __getstate__(self): return {"foo": self.foo} def __eq__(self, other): return self.foo == other.foo x = C([42]) y = copy.deepcopy(x) self.assertEqual(y, x) self.assertIsNot(y, x) self.assertIsNot(y.foo, x.foo) def test_deepcopy_inst_setstate(self): class C: def __init__(self, foo): self.foo = foo def __setstate__(self, state): self.foo = state["foo"] def __eq__(self, other): return self.foo == other.foo x = C([42]) y = copy.deepcopy(x) self.assertEqual(y, x) self.assertIsNot(y, x) self.assertIsNot(y.foo, x.foo) def test_deepcopy_inst_getstate_setstate(self): class C: def __init__(self, foo): self.foo = foo def __getstate__(self): return self.foo def __setstate__(self, state): self.foo = state def __eq__(self, other): return self.foo == other.foo x = C([42]) y = copy.deepcopy(x) self.assertEqual(y, x) self.assertIsNot(y, x) self.assertIsNot(y.foo, x.foo) # State with boolean value is false (issue #25718) x = C([]) y = copy.deepcopy(x) self.assertEqual(y, x) self.assertIsNot(y, x) self.assertIsNot(y.foo, x.foo) def test_deepcopy_reflexive_inst(self): class C: pass x = C() x.foo = x y = copy.deepcopy(x) self.assertIsNot(y, x) self.assertIs(y.foo, y) def test_deepcopy_range(self): class I(int): pass x = range(I(10)) y = copy.deepcopy(x) self.assertIsNot(y, x) self.assertEqual(y, x) self.assertIsNot(y.stop, x.stop) self.assertEqual(y.stop, x.stop) self.assertIsInstance(y.stop, I) # _reconstruct() def test_reconstruct_string(self): class C(object): def __reduce__(self): return "" x = C() y = copy.copy(x) self.assertIs(y, x) y = copy.deepcopy(x) self.assertIs(y, x) def test_reconstruct_nostate(self): class C(object): def __reduce__(self): return (C, ()) x = C() x.foo = 42 y = copy.copy(x) self.assertIs(y.__class__, x.__class__) y = copy.deepcopy(x) self.assertIs(y.__class__, x.__class__) def test_reconstruct_state(self): class C(object): def __reduce__(self): return (C, (), self.__dict__) def __eq__(self, other): return self.__dict__ == other.__dict__ x = C() x.foo = [42] y = copy.copy(x) self.assertEqual(y, x) y = copy.deepcopy(x) self.assertEqual(y, x) self.assertIsNot(y.foo, x.foo) def test_reconstruct_state_setstate(self): class C(object): def __reduce__(self): return (C, (), self.__dict__) def __setstate__(self, state): self.__dict__.update(state) def __eq__(self, other): return self.__dict__ == other.__dict__ x = C() x.foo = [42] y = copy.copy(x) self.assertEqual(y, x) y = copy.deepcopy(x) self.assertEqual(y, x) self.assertIsNot(y.foo, x.foo) def test_reconstruct_reflexive(self): class C(object): pass x = C() x.foo = x y = copy.deepcopy(x) self.assertIsNot(y, x) self.assertIs(y.foo, y) # Additions for Python 2.3 and pickle protocol 2 def test_reduce_4tuple(self): class C(list): def __reduce__(self): return (C, (), self.__dict__, iter(self)) def __eq__(self, other): return (list(self) == list(other) and self.__dict__ == other.__dict__) x = C([[1, 2], 3]) y = copy.copy(x) self.assertEqual(x, y) self.assertIsNot(x, y) self.assertIs(x[0], y[0]) y = copy.deepcopy(x) self.assertEqual(x, y) self.assertIsNot(x, y) self.assertIsNot(x[0], y[0]) def test_reduce_5tuple(self): class C(dict): def __reduce__(self): return (C, (), self.__dict__, None, self.items()) def __eq__(self, other): return (dict(self) == dict(other) and self.__dict__ == other.__dict__) x = C([("foo", [1, 2]), ("bar", 3)]) y = copy.copy(x) self.assertEqual(x, y) self.assertIsNot(x, y) self.assertIs(x["foo"], y["foo"]) y = copy.deepcopy(x) self.assertEqual(x, y) self.assertIsNot(x, y) self.assertIsNot(x["foo"], y["foo"]) def test_copy_slots(self): class C(object): __slots__ = ["foo"] x = C() x.foo = [42] y = copy.copy(x) self.assertIs(x.foo, y.foo) def test_deepcopy_slots(self): class C(object): __slots__ = ["foo"] x = C() x.foo = [42] y = copy.deepcopy(x) self.assertEqual(x.foo, y.foo) self.assertIsNot(x.foo, y.foo) def test_deepcopy_dict_subclass(self): class C(dict): def __init__(self, d=None): if not d: d = {} self._keys = list(d.keys()) super().__init__(d) def __setitem__(self, key, item): super().__setitem__(key, item) if key not in self._keys: self._keys.append(key) x = C(d={'foo':0}) y = copy.deepcopy(x) self.assertEqual(x, y) self.assertEqual(x._keys, y._keys) self.assertIsNot(x, y) x['bar'] = 1 self.assertNotEqual(x, y) self.assertNotEqual(x._keys, y._keys) def test_copy_list_subclass(self): class C(list): pass x = C([[1, 2], 3]) x.foo = [4, 5] y = copy.copy(x) self.assertEqual(list(x), list(y)) self.assertEqual(x.foo, y.foo) self.assertIs(x[0], y[0]) self.assertIs(x.foo, y.foo) def test_deepcopy_list_subclass(self): class C(list): pass x = C([[1, 2], 3]) x.foo = [4, 5] y = copy.deepcopy(x) self.assertEqual(list(x), list(y)) self.assertEqual(x.foo, y.foo) self.assertIsNot(x[0], y[0]) self.assertIsNot(x.foo, y.foo) def test_copy_tuple_subclass(self): class C(tuple): pass x = C([1, 2, 3]) self.assertEqual(tuple(x), (1, 2, 3)) y = copy.copy(x) self.assertEqual(tuple(y), (1, 2, 3)) def test_deepcopy_tuple_subclass(self): class C(tuple): pass x = C([[1, 2], 3]) self.assertEqual(tuple(x), ([1, 2], 3)) y = copy.deepcopy(x) self.assertEqual(tuple(y), ([1, 2], 3)) self.assertIsNot(x, y) self.assertIsNot(x[0], y[0]) def test_getstate_exc(self): class EvilState(object): def __getstate__(self): raise ValueError("ain't got no stickin' state") self.assertRaises(ValueError, copy.copy, EvilState()) def test_copy_function(self): self.assertEqual(copy.copy(global_foo), global_foo) def foo(x, y): return x+y self.assertEqual(copy.copy(foo), foo) bar = lambda: None self.assertEqual(copy.copy(bar), bar) def test_deepcopy_function(self): self.assertEqual(copy.deepcopy(global_foo), global_foo) def foo(x, y): return x+y self.assertEqual(copy.deepcopy(foo), foo) bar = lambda: None self.assertEqual(copy.deepcopy(bar), bar) def _check_weakref(self, _copy): class C(object): pass obj = C() x = weakref.ref(obj) y = _copy(x) self.assertIs(y, x) del obj y = _copy(x) self.assertIs(y, x) def test_copy_weakref(self): self._check_weakref(copy.copy) def test_deepcopy_weakref(self): self._check_weakref(copy.deepcopy) def _check_copy_weakdict(self, _dicttype): class C(object): pass a, b, c, d = [C() for i in range(4)] u = _dicttype() u[a] = b u[c] = d v = copy.copy(u) self.assertIsNot(v, u) self.assertEqual(v, u) self.assertEqual(v[a], b) self.assertEqual(v[c], d) self.assertEqual(len(v), 2) del c, d support.gc_collect() # For PyPy or other GCs. self.assertEqual(len(v), 1) x, y = C(), C() # The underlying containers are decoupled v[x] = y self.assertNotIn(x, u) def test_copy_weakkeydict(self): self._check_copy_weakdict(weakref.WeakKeyDictionary) def test_copy_weakvaluedict(self): self._check_copy_weakdict(weakref.WeakValueDictionary) def test_deepcopy_weakkeydict(self): class C(object): def __init__(self, i): self.i = i a, b, c, d = [C(i) for i in range(4)] u = weakref.WeakKeyDictionary() u[a] = b u[c] = d # Keys aren't copied, values are v = copy.deepcopy(u) self.assertNotEqual(v, u) self.assertEqual(len(v), 2) self.assertIsNot(v[a], b) self.assertIsNot(v[c], d) self.assertEqual(v[a].i, b.i) self.assertEqual(v[c].i, d.i) del c support.gc_collect() # For PyPy or other GCs. self.assertEqual(len(v), 1) def test_deepcopy_weakvaluedict(self): class C(object): def __init__(self, i): self.i = i a, b, c, d = [C(i) for i in range(4)] u = weakref.WeakValueDictionary() u[a] = b u[c] = d # Keys are copied, values aren't v = copy.deepcopy(u) self.assertNotEqual(v, u) self.assertEqual(len(v), 2) (x, y), (z, t) = sorted(v.items(), key=lambda pair: pair[0].i) self.assertIsNot(x, a) self.assertEqual(x.i, a.i) self.assertIs(y, b) self.assertIsNot(z, c) self.assertEqual(z.i, c.i) self.assertIs(t, d) del x, y, z, t del d support.gc_collect() # For PyPy or other GCs. self.assertEqual(len(v), 1) def test_deepcopy_bound_method(self): class Foo(object): def m(self): pass f = Foo() f.b = f.m g = copy.deepcopy(f) self.assertEqual(g.m, g.b) self.assertIs(g.b.__self__, g) g.b() def global_foo(x, y): return x+y if __name__ == "__main__": unittest.main()