importfunctoolsimportunittestdefcapture(*args,**kw):return (args,kw)defextract_sig(part):return (part.func,part.args,part.keywords,part.__dict__)classMyTuple(tuple):def__add__(self,other):returnlist(self)+list(other)classMyDict(dict):passclassTestPartialSetstateSubclasses(unittest.TestCase):f=functools.partial(extract_sig)f.__setstate__((capture,MyTuple((1,)),MyDict(a=10),'\u2603'))f.__setstate__((capture,BadTuple((1,)), {},None))if__name__=="__main__":importunittest;unittest.main(verbosity=0)

AddressSanitizer:DEADLYSIGNAL===================================================================197163==ERROR: AddressSanitizer: SEGV on unknown address (pc 0x583829da5bda bp 0x7ffd359603d0 sp 0x7ffd35960320 T0)==197163==The signal is caused by a READ memory access.==197163==Hint: this fault was caused by a dereference of a high value address (see register values below).  Disassemble the provided pc to learn which register was used.    #0 0x583829da5bda in _Py_dict_lookup ../Objects/dictobject.c:1254    #1 0x583829dae83f in _Py_dict_lookup_threadsafe ../Objects/dictobject.c:1643    #2 0x583829dae83f in _PyDict_GetMethodStackRef ../Objects/dictobject.c:1691    #3 0x583829dfc2ff in _PyObject_GetMethodStackRef ../Objects/object.c:1756    #4 0x583829b831a4 in _PyEval_EvalFrameDefault ../Python/generated_cases.c.h:7844    #5 0x58382a057b55 in _PyEval_EvalFrame ../Include/internal/pycore_ceval.h:121    #6 0x58382a057b55 in _PyEval_Vector ../Python/ceval.c:2001    #7 0x58382a0439e8 in builtin___build_class__ ../Python/bltinmodule.c:205    #8 0x583829cd2ee7 in _PyObject_VectorcallTstate ../Include/internal/pycore_call.h:169    #9 0x583829cd2ee7 in PyObject_Vectorcall ../Objects/call.c:327    #10 0x583829b74ad2 in _PyEval_EvalFrameDefault ../Python/generated_cases.c.h:1620    #11 0x58382a057386 in _PyEval_EvalFrame ../Include/internal/pycore_ceval.h:121    #12 0x58382a057386 in _PyEval_Vector ../Python/ceval.c:2001    #13 0x58382a057386 in PyEval_EvalCode ../Python/ceval.c:884    #14 0x58382a215f0e in run_eval_code_obj ../Python/pythonrun.c:1365    #15 0x58382a215f0e in run_mod ../Python/pythonrun.c:1459    #16 0x58382a21abb7 in pyrun_file ../Python/pythonrun.c:1293    #17 0x58382a21abb7 in _PyRun_SimpleFileObject ../Python/pythonrun.c:521    #18 0x58382a21b6dc in _PyRun_AnyFileObject ../Python/pythonrun.c:81    #19 0x58382a28eafc in pymain_run_file_obj ../Modules/main.c:410    #20 0x58382a28eafc in pymain_run_file ../Modules/main.c:429    #21 0x58382a28eafc in pymain_run_python ../Modules/main.c:691    #22 0x58382a2903de in Py_RunMain ../Modules/main.c:772    #23 0x58382a2903de in pymain_main ../Modules/main.c:802    #24 0x58382a2903de in Py_BytesMain ../Modules/main.c:826    #25 0x7249b00571c9  (/lib/x86_64-linux-gnu/libc.so.6+0x2a1c9) (BuildId: 282c2c16e7b6600b0b22ea0c99010d2795752b5f)    #26 0x7249b005728a in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2a28a) (BuildId: 282c2c16e7b6600b0b22ea0c99010d2795752b5f)AddressSanitizer can not provide additional info.SUMMARY: AddressSanitizer: SEGV ../Objects/dictobject.c:1254 in _Py_dict_lookup==197163==ABORTING