Mailman 3 June 2012 - capi-sig

Re: [capi-sig] c extension corrupting the python interpreter ?
by Stefan Behnel June 22, 2012

June 22, 2012

[changed the citation order to fix the top-post] Ian Miers, 22.06.2012 04:37: > On Thu, Jun 21, 2012 at 8:46 AM, Andrei Paraschivescu wrote: > >> Ian, do you have other Python interpreters running? I don't know if that >> can cause the behavior you describe, but as some information is shared >> across interpreters (e.g. you can unpickle a class you have not imported if >> another interpreter has), it could potentially be relevant. >> >> I have not … [View More]

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Re: [capi-sig] c extension corrupting the python interpreter ?
by Andrei Paraschivescu June 21, 2012

June 21, 2012

Ian, do you have other Python interpreters running? I don't know if that can cause the behavior you describe, but as some information is shared across interpreters (e.g. you can unpickle a class you have not imported if another interpreter has), it could potentially be relevant. I have not been able to find where the documentation describes what is shared across interpreters, but perhaps someone who understands that issue can chime in. Andrei On Jun 20, 2012, at 2:29 PM, Ian … [View More]Miers wrote: > Hello, > > Test runs of the project I work on have been seeing intermittent, > usually non reproducible, errors that strongly sugest we are > somehow corrupting parts of the python interpreter. I suspect rather > strongly that the issue is caused by an error in some c extension we > wrote. However, I am unsure if this is actually possible, and if it > is , > how to actually look for the error. Moreover, I'm not even sure > what state > python keeps around between runs (i've seen some errors persist across > deleting pyc files, which on face, would make my hypothesis > unlikely). Can > someone enlighten on any or all of this ? > > Details follow: > > Some of the errors we have seen: >> import os.path > E TypeError: __import__() argument 1 must be str without null > bytes, not > str > > Of course, there isn't a null there and the import works when run > on its > own. > > Another error :functions failing to load from c extensions that when > examined, the output of help(module) showing random non asci > characters around that function definition. In short, it looks like > something (the pyc file, some internal state, maybe the actual .so > file > though it didn't look like it and that seems unlikely ) got corrupted. > > Some code causing sigabort from obmalloc. ( the trace of which is > bellow) > > These errors happen even if we set PYTHONDONTWRITEBYTECODE. > More perplexingly, in the case of one I am dealing with now who's > trace is > below , it appears to persist across removing all __pycache__ > and pyc > iles from the project . Is there some other state the python > interpreter > keeps across runs? > > My best guess is we are writing to something we aren't supposed to > in one > of the c extensions and messing things up from there. However, I'm not > really sure how to track this down. Valgrind, even on a python debug > build, seems to produce a lot of noise and its not clear what I should > actually look for in the output. > > Bellow is the gdb trace for a test run using pytest against python3.2 > inside virtualenv on ubuntu 11.04 > > Thanks, > Ian Miers > GDB trace : > > #0 0x00007ffff67acd05 in raise (sig=6) at > ../nptl/sysdeps/unix/sysv/linux/raise.c:64 > #1 0x00007ffff67b0ab6 in abort () at abort.c:92 > #2 0x00000000004c1504 in Py_FatalError (msg=0x7ffffffcc820 "bad ID: > Allocated using API '") > at ../Python/pythonrun.c:2119 > #3 0x0000000000421b0a in _PyObject_DebugCheckAddressApi (api=111 'o', > p=0x15d3980) at ../Objects/obmalloc.c:1591 > #4 0x0000000000421839 in _PyObject_DebugReallocApi (api=111 'o', > p=0x15d3980, nbytes=28) > at ../Objects/obmalloc.c:1498 > #5 0x0000000000421635 in _PyObject_DebugRealloc (p=0x15d3980, > nbytes=28) > at ../Objects/obmalloc.c:1417 > #6 0x000000000044620c in unicode_resize (unicode=0x15a4930, > length=6) at > ../Objects/unicodeobject.c:285 > #7 0x00000000004463ad in _PyUnicode_New (length=6) at > ../Objects/unicodeobject.c:339 > #8 0x000000000044c269 in PyUnicodeUCS4_DecodeUTF8Stateful ( > s=0x127bd88 "append\373\373\373\373\373\373\373", <incomplete > sequence > \373>, size=6, > errors=0x64b6ae "surrogatepass", consumed=0x0) at > ../Objects/unicodeobject.c:2531 > #9 0x000000000044c20b in PyUnicodeUCS4_DecodeUTF8 ( > s=0x127bd88 "append\373\373\373\373\373\373\373", <incomplete > sequence > \373>, size=6, > errors=0x64b6ae "surrogatepass") at ../Objects/unicodeobject.c: > 2495 > #10 0x00000000004b3e66 in r_object (p=0x7ffffffcdae0) at > ../Python/marshal.c:818 > #11 0x00000000004b3f31 in r_object (p=0x7ffffffcdae0) at > ../Python/marshal.c:837 > #12 0x00000000004b4876 in r_object (p=0x7ffffffcdae0) at > ../Python/marshal.c:968 > #13 0x00000000004b3f31 in r_object (p=0x7ffffffcdae0) at > ../Python/marshal.c:837 > #14 0x00000000004b4852 in r_object (p=0x7ffffffcdae0) at > ../Python/marshal.c:965 > #15 0x00000000004b3f31 in r_object (p=0x7ffffffcdae0) at > ../Python/marshal.c:837 > #16 0x00000000004b4852 in r_object (p=0x7ffffffcdae0) at > ../Python/marshal.c:965 > #17 0x00000000004b5204 in PyMarshal_ReadObjectFromString > (str=0x16d3b30 > "c", len=8715) at ../Python/marshal.c:1133 > #18 0x00000000004b50e8 in PyMarshal_ReadLastObjectFromFile > (fp=0x1668680) > at ../Python/marshal.c:1094 > #19 0x00000000004a92d0 in read_compiled_module ( > cpathname=0x7ffffffcdc80 > "/home/ian/code/venv_valgrind/charm/charm/toolbox/__pycache__/ > secretutil.cpython-32.pyc", > fp=0x1668680) at ../Python/import.c:1058 > #20 0x00000000004a9c8e in load_source_module (name=0x7ffffffcfe40 > "charm.toolbox.secretutil", > pathname=0x7ffffffced50 > "/home/ian/code/venv_valgrind/charm/charm/toolbox/secretutil.py", > fp=0x16c8c10) > at ../Python/import.c:1315 > #21 0x00000000004ab7fa in load_module (name=0x7ffffffcfe40 > "charm.toolbox.secretutil", fp=0x16c8c10, > pathname=0x7ffffffced50 > "/home/ian/code/venv_valgrind/charm/charm/toolbox/secretutil.py", > type=1, > loader=0x0) > ---Type <return> to continue, or q <return> to quit--- > at ../Python/import.c:2102 > #22 0x00000000004adbfe in import_submodule (mod=0x168b3a8, > subname=0x7ffffffcfe4e "secretutil", > fullname=0x7ffffffcfe40 "charm.toolbox.secretutil") at > ../Python/import.c:2894 > #23 0x00000000004ad077 in load_next (mod=0x168b3a8, altmod=0x168b3a8, > p_name=0x7ffffffcfe08, > buf=0x7ffffffcfe40 "charm.toolbox.secretutil", > p_buflen=0x7ffffffcfe18) > at ../Python/import.c:2706 > #24 0x00000000004ac2f0 in import_module_level (name=0x0, > globals=0x16c9760, > locals=0x16c9760, fromlist=0x15ccae0, > level=0) at ../Python/import.c:2430 > #25 0x00000000004ac776 in PyImport_ImportModuleLevel (name=0x15c7a80 > "charm.toolbox.secretutil", > globals=0x16c9760, locals=0x16c9760, fromlist=0x15ccae0, > level=0) at > ../Python/import.c:2474 > #26 0x0000000000473d0c in builtin___import__ (self=0x7ffff7fc8f60, > args=0x16893c0, kwds=0x0) > at ../Python/bltinmodule.c:168 > #27 0x000000000060ad2e in PyCFunction_Call (func=0x7ffff7fce0d8, > arg=0x16893c0, kw=0x0) > at ../Objects/methodobject.c:84 > #28 0x00000000005b580f in PyObject_Call (func=0x7ffff7fce0d8, > arg=0x16893c0, kw=0x0) at ../Objects/abstract.c:2149 > #29 0x000000000048d510 in PyEval_CallObjectWithKeywords > (func=0x7ffff7fce0d8, arg=0x16893c0, kw=0x0) > at ../Python/ceval.c:3755 > #30 0x00000000004863b5 in PyEval_EvalFrameEx (f=0x1604560, > throwflag=0) at > ../Python/ceval.c:2332 > #31 0x000000000048be4c in PyEval_EvalCodeEx (_co=0x169d998, > globals=0x16c9760, locals=0x16c9760, args=0x0, > argcount=0, kws=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, > closure=0x0) at ../Python/ceval.c:3311 > #32 0x000000000047bf3a in PyEval_EvalCode (co=0x169d998, > globals=0x16c9760, > locals=0x16c9760) > at ../Python/ceval.c:761 > #33 0x00000000004a8cb7 in PyImport_ExecCodeModuleWithPathnames > (name=0x7ffffffd3ef0 "schemes.abenc.abenc_bsw07", > co=0x169d998, > pathname=0x7ffffffd1d30 > "/home/ian/code/venv_valgrind/charm/schemes/abenc/__pycache__/ > abenc_bsw07.cpython-32.pyc", > cpathname=0x7ffffffd1d30 > "/home/ian/code/venv_valgrind/charm/schemes/abenc/__pycache__/ > abenc_bsw07.cpython-32.pyc") > at ../Python/import.c:809 > #34 0x00000000004a9df6 in load_source_module (name=0x7ffffffd3ef0 > "schemes.abenc.abenc_bsw07", > pathname=0x7ffffffd1d30 > "/home/ian/code/venv_valgrind/charm/schemes/abenc/__pycache__/ > abenc_bsw07.cpython-32.pyc", > fp=0x16c9de0) at ../Python/import.c:1339 > #35 0x00000000004ab7fa in load_module (name=0x7ffffffd3ef0 > "schemes.abenc.abenc_bsw07", fp=0x16c9de0, > pathname=0x7ffffffd2e00 > "/home/ian/code/venv_valgrind/charm/schemes/abenc/abenc_bsw07.py", > type=1, > loader=0x0) > at ../Python/import.c:2102 > > After this point i think its irrelevant. > > > #35 0x00000000004ab7fa in load_module (name=0x7ffffffd3ef0 > "schemes.abenc.abenc_bsw07", fp=0x16c9de0, > pathname=0x7ffffffd2e00 > "/home/ian/code/venv_valgrind/charm/schemes/abenc/abenc_bsw07.py", > type=1, > loader=0x0) > at ../Python/import.c:2102 > ---Type <return> to continue, or q <return> to quit--- > #36 0x00000000004adbfe in import_submodule (mod=0x15cfc18, > subname=0x7ffffffd3efe "abenc_bsw07", > fullname=0x7ffffffd3ef0 "schemes.abenc.abenc_bsw07") at > ../Python/import.c:2894 > #37 0x00000000004ad077 in load_next (mod=0x15cfc18, altmod=0x15cfc18, > p_name=0x7ffffffd3eb8, > buf=0x7ffffffd3ef0 "schemes.abenc.abenc_bsw07", > p_buflen=0x7ffffffd3ec8) at ../Python/import.c:2706 > #38 0x00000000004ac2f0 in import_module_level (name=0x0, > globals=0x166d0d0, > locals=0x166d0d0, fromlist=0x15cc220, > level=0) at ../Python/import.c:2430 > #39 0x00000000004ac776 in PyImport_ImportModuleLevel (name=0x15cc5b0 > "schemes.abenc.abenc_bsw07", > globals=0x166d0d0, locals=0x166d0d0, fromlist=0x15cc220, > level=0) at > ../Python/import.c:2474 > #40 0x0000000000473d0c in builtin___import__ (self=0x7ffff7fc8f60, > args=0x1689060, kwds=0x0) > at ../Python/bltinmodule.c:168 > #41 0x000000000060ad2e in PyCFunction_Call (func=0x7ffff7fce0d8, > arg=0x1689060, kw=0x0) > at ../Objects/methodobject.c:84 > #42 0x00000000005b580f in PyObject_Call (func=0x7ffff7fce0d8, > arg=0x1689060, kw=0x0) at ../Objects/abstract.c:2149 > #43 0x000000000048d510 in PyEval_CallObjectWithKeywords > (func=0x7ffff7fce0d8, arg=0x1689060, kw=0x0) > at ../Python/ceval.c:3755 > #44 0x00000000004863b5 in PyEval_EvalFrameEx (f=0x1684fb0, > throwflag=0) at > ../Python/ceval.c:2332 > #45 0x000000000048be4c in PyEval_EvalCodeEx (_co=0x16876b8, > globals=0x166d0d0, locals=0x166d0d0, args=0x0, > argcount=0, kws=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, > closure=0x0) at ../Python/ceval.c:3311 > #46 0x000000000047bf3a in PyEval_EvalCode (co=0x16876b8, > globals=0x166d0d0, > locals=0x166d0d0) > at ../Python/ceval.c:761 > #47 0x00000000004a8cb7 in PyImport_ExecCodeModuleWithPathnames ( > name=0x7ffffffd7fa0 "schemes.abenc.abenc_adapt_hybrid", > co=0x16876b8, > pathname=0x7ffffffd5de0 > "/home/ian/code/venv_valgrind/charm/schemes/abenc/__pycache__/ > abenc_adapt_hybrid.cpython-32.pyc", > cpathname=0x7ffffffd5de0 > "/home/ian/code/venv_valgrind/charm/schemes/abenc/__pycache__/ > abenc_adapt_hybrid.cpython-32.pyc") > at ../Python/import.c:809 > #48 0x00000000004a9df6 in load_source_module (name=0x7ffffffd7fa0 > "schemes.abenc.abenc_adapt_hybrid", > pathname=0x7ffffffd5de0 > "/home/ian/code/venv_valgrind/charm/schemes/abenc/__pycache__/ > abenc_adapt_hybrid.cpython-32.pyc", > fp=0x1674450) at ../Python/import.c:1339 > #49 0x00000000004ab7fa in load_module (name=0x7ffffffd7fa0 > "schemes.abenc.abenc_adapt_hybrid", fp=0x1674450, > pathname=0x7ffffffd6eb0 > "/home/ian/code/venv_valgrind/charm/schemes/abenc/ > abenc_adapt_hybrid.py", > type=1, > loader=0x0) at ../Python/import.c:2102 > #50 0x00000000004adbfe in import_submodule (mod=0x15cfc18, > subname=0x7ffffffd7fae "abenc_adapt_hybrid", > ---Type <return> to continue, or q <return> to quit--- > fullname=0x7ffffffd7fa0 "schemes.abenc.abenc_adapt_hybrid") at > ../Python/import.c:2894 > #51 0x00000000004ad077 in load_next (mod=0x15cfc18, altmod=0x15cfc18, > p_name=0x7ffffffd7f68, > buf=0x7ffffffd7fa0 "schemes.abenc.abenc_adapt_hybrid", > p_buflen=0x7ffffffd7f78) at ../Python/import.c:2706 > #52 0x00000000004ac2f0 in import_module_level (name=0x0, > globals=0x166f180, > locals=0x166f180, fromlist=0x1549ca0, > level=0) at ../Python/import.c:2430 > #53 0x00000000004ac776 in PyImport_ImportModuleLevel (name=0x15cfac0 > "schemes.abenc.abenc_adapt_hybrid", > globals=0x166f180, locals=0x166f180, fromlist=0x1549ca0, > level=0) at > ../Python/import.c:2474 > #54 0x0000000000473d0c in builtin___import__ (self=0x7ffff7fc8f60, > args=0x14e3840, kwds=0x0) > at ../Python/bltinmodule.c:168 > #55 0x000000000060ad2e in PyCFunction_Call (func=0x7ffff7fce0d8, > arg=0x14e3840, kw=0x0) > at ../Objects/methodobject.c:84 > #56 0x00000000005b580f in PyObject_Call (func=0x7ffff7fce0d8, > arg=0x14e3840, kw=0x0) at ../Objects/abstract.c:2149 > #57 0x000000000048d510 in PyEval_CallObjectWithKeywords > (func=0x7ffff7fce0d8, arg=0x14e3840, kw=0x0) > at ../Python/ceval.c:3755 > #58 0x00000000004863b5 in PyEval_EvalFrameEx (f=0x1671cb0, > throwflag=0) at > ../Python/ceval.c:2332 > #59 0x000000000048be4c in PyEval_EvalCodeEx (_co=0x1536d30, > globals=0x166f180, locals=0x166f180, args=0x0, > argcount=0, kws=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, > closure=0x0) at ../Python/ceval.c:3311 > #60 0x000000000047bf3a in PyEval_EvalCode (co=0x1536d30, > globals=0x166f180, > locals=0x166f180) > at ../Python/ceval.c:761 > #61 0x000000000047529b in builtin_exec (self=0x7ffff7fc8f60, > args=0x15a6c90) at ../Python/bltinmodule.c:813 > #62 0x000000000060ad10 in PyCFunction_Call (func=0x7ffff7fce6f0, > arg=0x15a6c90, kw=0x0) > at ../Objects/methodobject.c:81 > #63 0x000000000048dd01 in call_function (pp_stack=0x7ffffffd9ef0, > oparg=2) > at ../Python/ceval.c:3875 > #64 0x0000000000488839 in PyEval_EvalFrameEx (f=0x1671730, > throwflag=0) at > ../Python/ceval.c:2673 > #65 0x000000000048be4c in PyEval_EvalCodeEx (_co=0x1419828, > globals=0x1469780, locals=0x0, args=0x154a5b0, > argcount=2, kws=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, > closure=0x0) at ../Python/ceval.c:3311 > #66 0x00000000005ec861 in function_call (func=0x14eec98, > arg=0x154a588, > kw=0x0) at ../Objects/funcobject.c:629 > #67 0x00000000005b580f in PyObject_Call (func=0x14eec98, > arg=0x154a588, > kw=0x0) at ../Objects/abstract.c:2149 > #68 0x00000000005d166a in method_call (func=0x14eec98, arg=0x154a588, > kw=0x0) at ../Objects/classobject.c:319 > #69 0x00000000005b580f in PyObject_Call (func=0x159c9c0, > arg=0x15a73e0, > kw=0x0) at ../Objects/abstract.c:2149 > #70 0x00000000005b599c in call_function_tail (callable=0x159c9c0, > args=0x15a73e0) at ../Objects/abstract.c:2181 > #71 0x00000000005b5dce in PyObject_CallMethod (o=0x14f1760, > name=0x64a99a > "load_module", format=0x64a87e "s") > at ../Objects/abstract.c:2258 > ---Type <return> to continue, or q <return> to quit--- > #72 0x00000000004ab8bf in load_module (name=0x7ffffffdbeb0 > "schemes.test.abenc_test", fp=0x0, > pathname=0x7ffffffdadc0 "", type=9, loader=0x14f1760) at > ../Python/import.c:2130 > #73 0x00000000004adbfe in import_submodule (mod=0x15cf768, > subname=0x7ffffffdbebd "abenc_test", > fullname=0x7ffffffdbeb0 "schemes.test.abenc_test") at > ../Python/import.c:2894 > #74 0x00000000004ad077 in load_next (mod=0x15cf768, altmod=0x15cf768, > p_name=0x7ffffffdbe78, > buf=0x7ffffffdbeb0 "schemes.test.abenc_test", > p_buflen=0x7ffffffdbe88) > at ../Python/import.c:2706 > #75 0x00000000004ac2f0 in import_module_level (name=0x0, globals=0x0, > locals=0x0, fromlist=0x0, level=-1) > at ../Python/import.c:2430 > #76 0x00000000004ac776 in PyImport_ImportModuleLevel (name=0x1529480 > "schemes.test.abenc_test", globals=0x0, > locals=0x0, fromlist=0x0, level=-1) at ../Python/import.c:2474 > #77 0x0000000000473d0c in builtin___import__ (self=0x7ffff7fc8f60, > args=0x15a0760, kwds=0x0) > at ../Python/bltinmodule.c:168 > #78 0x000000000060ad2e in PyCFunction_Call (func=0x7ffff7fce0d8, > arg=0x15a0760, kw=0x0) > at ../Objects/methodobject.c:84 > #79 0x000000000048dd01 in call_function (pp_stack=0x7ffffffdd0c0, > oparg=1) > at ../Python/ceval.c:3875 > #80 0x0000000000488839 in PyEval_EvalFrameEx (f=0x166df40, > throwflag=0) at > ../Python/ceval.c:2673 > #81 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xf60a50, > globals=0xecf240, locals=0x0, args=0x166de98, > argcount=1, kws=0x166dea0, kwcount=1, defs=0xf7f4c0, defcount=2, > kwdefs=0x0, closure=0x0) > at ../Python/ceval.c:3311 > #82 0x000000000048e2f9 in fast_function (func=0xf81568, > pp_stack=0x7ffffffddda0, n=3, na=1, nk=1) > at ../Python/ceval.c:3973 > #83 0x000000000048ded1 in call_function (pp_stack=0x7ffffffddda0, > oparg=256) at ../Python/ceval.c:3896 > #84 0x0000000000488839 in PyEval_EvalFrameEx (f=0x166dcf0, > throwflag=0) at > ../Python/ceval.c:2673 > #85 0x000000000048e1d6 in fast_function (func=0x1027568, > pp_stack=0x7ffffffde910, n=1, na=1, nk=0) > at ../Python/ceval.c:3963 > #86 0x000000000048ded1 in call_function (pp_stack=0x7ffffffde910, > oparg=0) > at ../Python/ceval.c:3896 > #87 0x0000000000488839 in PyEval_EvalFrameEx (f=0x166da90, > throwflag=0) at > ../Python/ceval.c:2673 > #88 0x000000000048e1d6 in fast_function (func=0xf82be0, > pp_stack=0x7ffffffdf480, n=3, na=3, nk=0) > at ../Python/ceval.c:3963 > #89 0x000000000048ded1 in call_function (pp_stack=0x7ffffffdf480, > oparg=2) > at ../Python/ceval.c:3896 > #90 0x0000000000488839 in PyEval_EvalFrameEx (f=0x166d890, > throwflag=0) at > ../Python/ceval.c:2673 > #91 0x000000000048e1d6 in fast_function (func=0x10274b0, > pp_stack=0x7ffffffdfff0, n=1, na=1, nk=0) > at ../Python/ceval.c:3963 > ---Type <return> to continue, or q <return> to quit--- > #92 0x000000000048ded1 in call_function (pp_stack=0x7ffffffdfff0, > oparg=0) > at ../Python/ceval.c:3896 > #93 0x0000000000488839 in PyEval_EvalFrameEx (f=0x166d650, > throwflag=0) at > ../Python/ceval.c:2673 > #94 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xfc7b08, > globals=0xff8a10, locals=0x0, args=0x15242b8, > argcount=1, kws=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, > closure=0x0) at ../Python/ceval.c:3311 > #95 0x00000000005ec861 in function_call (func=0x1026c98, > arg=0x1524290, > kw=0x0) at ../Objects/funcobject.c:629 > #96 0x00000000005b580f in PyObject_Call (func=0x1026c98, > arg=0x1524290, > kw=0x0) at ../Objects/abstract.c:2149 > #97 0x00000000005b6565 in PyObject_CallFunctionObjArgs > (callable=0x1026c98) > at ../Objects/abstract.c:2372 > #98 0x00000000005d8c93 in property_descr_get (self=0xfeada8, > obj=0x153cf40, > type=0x1006600) > at ../Objects/descrobject.c:1199 > #99 0x000000000041e05d in _PyObject_GenericGetAttrWithDict > (obj=0x153cf40, > name=0x7ffff7e778c8, dict=0x0) > at ../Objects/object.c:986 > #100 0x000000000041e4c6 in PyObject_GenericGetAttr (obj=0x153cf40, > name=0x7ffff7e778c8) > at ../Objects/object.c:1048 > #101 0x000000000041d98b in PyObject_GetAttr (v=0x153cf40, > name=0x7ffff7e778c8) at ../Objects/object.c:833 > #102 0x0000000000485cfe in PyEval_EvalFrameEx (f=0x166ce80, > throwflag=0) at > ../Python/ceval.c:2278 > #103 0x000000000048e1d6 in fast_function (func=0x10271d0, > pp_stack=0x7ffffffe19f0, n=1, na=1, nk=0) > at ../Python/ceval.c:3963 > #104 0x000000000048ded1 in call_function (pp_stack=0x7ffffffe19f0, > oparg=0) > at ../Python/ceval.c:3896 > #105 0x0000000000488839 in PyEval_EvalFrameEx (f=0x156bbd0, > throwflag=0) at > ../Python/ceval.c:2673 > #106 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xf076b8, > globals=0xe01830, locals=0x0, args=0x156bb30, > argcount=0, kws=0x156bb30, kwcount=0, defs=0x0, defcount=0, > kwdefs=0x0, > closure=0x15247d0) > at ../Python/ceval.c:3311 > #107 0x000000000048e2f9 in fast_function (func=0x14f6060, > pp_stack=0x7ffffffe26d0, n=0, na=0, nk=0) > at ../Python/ceval.c:3973 > #108 0x000000000048ded1 in call_function (pp_stack=0x7ffffffe26d0, > oparg=0) > at ../Python/ceval.c:3896 > #109 0x0000000000488839 in PyEval_EvalFrameEx (f=0x156b970, > throwflag=0) at > ../Python/ceval.c:2673 > #110 0x000000000048e1d6 in fast_function (func=0xf82be0, > pp_stack=0x7ffffffe3240, n=3, na=3, nk=0) > at ../Python/ceval.c:3963 > #111 0x000000000048ded1 in call_function (pp_stack=0x7ffffffe3240, > oparg=2) > at ../Python/ceval.c:3896 > #112 0x0000000000488839 in PyEval_EvalFrameEx (f=0x156b760, > throwflag=0) at > ../Python/ceval.c:2673 > #113 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xf07770, > globals=0xe01830, locals=0x0, args=0x156b680, > argcount=1, kws=0x156b688, kwcount=0, defs=0x0, defcount=0, > kwdefs=0x0, > closure=0x0) at ../Python/ceval.c:3311 > #114 0x000000000048e2f9 in fast_function (func=0xf83288, > pp_stack=0x7ffffffe3f20, n=1, na=1, nk=0) > ---Type <return> to continue, or q <return> to quit--- > at ../Python/ceval.c:3973 > #115 0x000000000048ded1 in call_function (pp_stack=0x7ffffffe3f20, > oparg=0) > at ../Python/ceval.c:3896 > #116 0x0000000000488839 in PyEval_EvalFrameEx (f=0x156b4e0, > throwflag=0) at > ../Python/ceval.c:2673 > #117 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xfb9b08, > globals=0xf47e40, locals=0x0, args=0x14fb908, > argcount=3, kws=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, > closure=0x0) at ../Python/ceval.c:3311 > #118 0x00000000005ec861 in function_call (func=0xfcdbe0, > arg=0x14fb8e0, > kw=0x0) at ../Objects/funcobject.c:629 > #119 0x00000000005b580f in PyObject_Call (func=0xfcdbe0, > arg=0x14fb8e0, > kw=0x0) at ../Objects/abstract.c:2149 > #120 0x00000000005d166a in method_call (func=0xfcdbe0, arg=0x14fb8e0, > kw=0x0) at ../Objects/classobject.c:319 > #121 0x00000000005b580f in PyObject_Call (func=0x159c420, > arg=0x15183a8, > kw=0x0) at ../Objects/abstract.c:2149 > #122 0x0000000000444231 in slot_tp_init (self=0x15248b0, > args=0x15183a8, > kwds=0x0) at ../Objects/typeobject.c:5278 > #123 0x0000000000433f91 in type_call (type=0xff5db0, args=0x15183a8, > kwds=0x0) at ../Objects/typeobject.c:691 > #124 0x00000000005b580f in PyObject_Call (func=0xff5db0, > arg=0x15183a8, > kw=0x0) at ../Objects/abstract.c:2149 > #125 0x000000000048eb38 in do_call (func=0xff5db0, > pp_stack=0x7ffffffe4de0, > na=2, nk=0) at ../Python/ceval.c:4095 > #126 0x000000000048deed in call_function (pp_stack=0x7ffffffe4de0, > oparg=2) > at ../Python/ceval.c:3898 > #127 0x0000000000488839 in PyEval_EvalFrameEx (f=0x156b290, > throwflag=0) at > ../Python/ceval.c:2673 > #128 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xfc0a50, > globals=0xf47e40, locals=0x0, args=0x7ffff7f96088, > argcount=0, kws=0x154a808, kwcount=1, defs=0x0, defcount=0, > kwdefs=0x0, > closure=0x0) at ../Python/ceval.c:3311 > #129 0x00000000005ec861 in function_call (func=0xfd0288, > arg=0x7ffff7f96060, kw=0x1473960) > at ../Objects/funcobject.c:629 > #130 0x00000000005b580f in PyObject_Call (func=0xfd0288, > arg=0x7ffff7f96060, kw=0x1473960) > at ../Objects/abstract.c:2149 > #131 0x000000000048f1ab in ext_do_call (func=0xfd0288, > pp_stack=0x7ffffffe5af0, flags=2, na=0, nk=0) > at ../Python/ceval.c:4190 > #132 0x0000000000488c75 in PyEval_EvalFrameEx (f=0x166cc70, > throwflag=0) at > ../Python/ceval.c:2714 > #133 0x000000000048e1d6 in fast_function (func=0xdb7a70, > pp_stack=0x7ffffffe6660, n=1, na=1, nk=0) > at ../Python/ceval.c:3963 > #134 0x000000000048ded1 in call_function (pp_stack=0x7ffffffe6660, > oparg=0) > at ../Python/ceval.c:3896 > #135 0x0000000000488839 in PyEval_EvalFrameEx (f=0x105e7a0, > throwflag=0) at > ../Python/ceval.c:2673 > #136 0x000000000048be4c in PyEval_EvalCodeEx (_co=0x10fa600, > globals=0x111b430, locals=0x0, args=0x151f6a8, > argcount=1, kws=0x15096e8, kwcount=2, defs=0x0, defcount=0, > kwdefs=0x0, > closure=0x0) at ../Python/ceval.c:3311 > #137 0x00000000005ec861 in function_call (func=0x1100f78, > arg=0x151f680, > kw=0x1565d60) > at ../Objects/funcobject.c:629 > #138 0x00000000005b580f in PyObject_Call (func=0x1100f78, > arg=0x151f680, > kw=0x1565d60) > ---Type <return> to continue, or q <return> to quit--- > at ../Objects/abstract.c:2149 > #139 0x000000000048f1ab in ext_do_call (func=0x1100f78, > pp_stack=0x7ffffffe7370, flags=2, na=1, nk=0) > at ../Python/ceval.c:4190 > #140 0x0000000000488c75 in PyEval_EvalFrameEx (f=0x166ca60, > throwflag=0) at > ../Python/ceval.c:2714 > #141 0x000000000048e1d6 in fast_function (func=0xdb7a70, > pp_stack=0x7ffffffe7ee0, n=1, na=1, nk=0) > at ../Python/ceval.c:3963 > #142 0x000000000048ded1 in call_function (pp_stack=0x7ffffffe7ee0, > oparg=0) > at ../Python/ceval.c:3896 > #143 0x0000000000488839 in PyEval_EvalFrameEx (f=0x105e200, > throwflag=0) at > ../Python/ceval.c:2673 > #144 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xfd9bc0, > globals=0xfac190, locals=0x0, args=0x7ffff7f96088, > argcount=0, kws=0x14f4cc0, kwcount=2, defs=0x0, defcount=0, > kwdefs=0x0, > closure=0x0) at ../Python/ceval.c:3311 > #145 0x00000000005ec861 in function_call (func=0x102d4b0, > arg=0x7ffff7f96060, kw=0x1566eb0) > at ../Objects/funcobject.c:629 > #146 0x00000000005b580f in PyObject_Call (func=0x102d4b0, > arg=0x7ffff7f96060, kw=0x1566eb0) > at ../Objects/abstract.c:2149 > #147 0x000000000048f1ab in ext_do_call (func=0x102d4b0, > pp_stack=0x7ffffffe8bf0, flags=2, na=0, nk=0) > at ../Python/ceval.c:4190 > #148 0x0000000000488c75 in PyEval_EvalFrameEx (f=0x162a360, > throwflag=0) at > ../Python/ceval.c:2714 > #149 0x000000000048e1d6 in fast_function (func=0xdb7a70, > pp_stack=0x7ffffffe9760, n=1, na=1, nk=0) > at ../Python/ceval.c:3963 > #150 0x000000000048ded1 in call_function (pp_stack=0x7ffffffe9760, > oparg=0) > at ../Python/ceval.c:3896 > #151 0x0000000000488839 in PyEval_EvalFrameEx (f=0x1615390, > throwflag=0) at > ../Python/ceval.c:2673 > #152 0x000000000048e1d6 in fast_function (func=0xdb8118, > pp_stack=0x7ffffffea2d0, n=3, na=3, nk=0) > at ../Python/ceval.c:3963 > #153 0x000000000048ded1 in call_function (pp_stack=0x7ffffffea2d0, > oparg=2) > at ../Python/ceval.c:3896 > #154 0x0000000000488839 in PyEval_EvalFrameEx (f=0x1596aa0, > throwflag=0) at > ../Python/ceval.c:2673 > #155 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xc99b08, > globals=0xaf8b80, locals=0x0, args=0x1418358, > argcount=2, kws=0x1500f88, kwcount=1, defs=0x0, defcount=0, > kwdefs=0x0, > closure=0x0) at ../Python/ceval.c:3311 > #156 0x00000000005ec861 in function_call (func=0xdb8060, > arg=0x1418330, > kw=0x14ae360) > at ../Objects/funcobject.c:629 > #157 0x00000000005b580f in PyObject_Call (func=0xdb8060, > arg=0x1418330, > kw=0x14ae360) > at ../Objects/abstract.c:2149 > #158 0x000000000048f1ab in ext_do_call (func=0xdb8060, > pp_stack=0x7ffffffeafe0, flags=2, na=2, nk=0) > at ../Python/ceval.c:4190 > ---Type <return> to continue, or q <return> to quit--- > #159 0x0000000000488c75 in PyEval_EvalFrameEx (f=0x161e660, > throwflag=0) at > ../Python/ceval.c:2714 > #160 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xf01320, > globals=0xe01830, locals=0x0, args=0x166c618, > argcount=0, kws=0x166c618, kwcount=1, defs=0x0, defcount=0, > kwdefs=0x0, > closure=0x1518330) > at ../Python/ceval.c:3311 > #161 0x000000000048e2f9 in fast_function (func=0x14f64b0, > pp_stack=0x7ffffffebcc0, n=2, na=0, nk=1) > at ../Python/ceval.c:3973 > #162 0x000000000048ded1 in call_function (pp_stack=0x7ffffffebcc0, > oparg=256) at ../Python/ceval.c:3896 > #163 0x0000000000488839 in PyEval_EvalFrameEx (f=0x166c460, > throwflag=0) at > ../Python/ceval.c:2673 > #164 0x00000000005e0d36 in gen_send_ex (gen=0x1520760, arg=0x0, > exc=0) at > ../Objects/genobject.c:82 > #165 0x00000000005e1660 in gen_iternext (gen=0x1520760) at > ../Objects/genobject.c:279 > #166 0x00000000005eff93 in listextend (self=0x142e2b8, b=0x1520760) at > ../Objects/listobject.c:831 > #167 0x000000000048dadb in call_function (pp_stack=0x7ffffffec860, > oparg=1) > at ../Python/ceval.c:3863 > #168 0x0000000000488839 in PyEval_EvalFrameEx (f=0x15654f0, > throwflag=0) at > ../Python/ceval.c:2673 > #169 0x000000000048e1d6 in fast_function (func=0xf83be0, > pp_stack=0x7ffffffed3d0, n=3, na=3, nk=0) > at ../Python/ceval.c:3963 > #170 0x000000000048ded1 in call_function (pp_stack=0x7ffffffed3d0, > oparg=2) > at ../Python/ceval.c:3896 > #171 0x0000000000488839 in PyEval_EvalFrameEx (f=0x1565280, > throwflag=0) at > ../Python/ceval.c:2673 > #172 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xf103d8, > globals=0xe01830, locals=0x0, args=0x1565220, > argcount=1, kws=0x1565228, kwcount=0, defs=0xf7f628, defcount=2, > kwdefs=0x0, closure=0x0) > at ../Python/ceval.c:3311 > #173 0x000000000048e2f9 in fast_function (func=0xf83b28, > pp_stack=0x7ffffffee0b0, n=1, na=1, nk=0) > at ../Python/ceval.c:3973 > #174 0x000000000048ded1 in call_function (pp_stack=0x7ffffffee0b0, > oparg=0) > at ../Python/ceval.c:3896 > #175 0x0000000000488839 in PyEval_EvalFrameEx (f=0x1565090, > throwflag=0) at > ../Python/ceval.c:2673 > #176 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xefaea0, > globals=0xe01830, locals=0x0, args=0x7ffff7f96088, > argcount=0, kws=0x1518f10, kwcount=1, defs=0x0, defcount=0, > kwdefs=0x0, > closure=0x0) at ../Python/ceval.c:3311 > #177 0x00000000005ec861 in function_call (func=0xf17e08, > arg=0x7ffff7f96060, kw=0x14b6aa0) > at ../Objects/funcobject.c:629 > #178 0x00000000005b580f in PyObject_Call (func=0xf17e08, > arg=0x7ffff7f96060, kw=0x14b6aa0) > at ../Objects/abstract.c:2149 > #179 0x000000000048f1ab in ext_do_call (func=0xf17e08, > pp_stack=0x7ffffffeedc0, flags=2, na=0, nk=0) > at ../Python/ceval.c:4190 > #180 0x0000000000488c75 in PyEval_EvalFrameEx (f=0x15642c0, > throwflag=0) at > ../Python/ceval.c:2714 > ---Type <return> to continue, or q <return> to quit--- > #181 0x000000000048e1d6 in fast_function (func=0xdb7a70, > pp_stack=0x7ffffffef930, n=1, na=1, nk=0) > at ../Python/ceval.c:3963 > #182 0x000000000048ded1 in call_function (pp_stack=0x7ffffffef930, > oparg=0) > at ../Python/ceval.c:3896 > #183 0x0000000000488839 in PyEval_EvalFrameEx (f=0x1564060, > throwflag=0) at > ../Python/ceval.c:2673 > #184 0x000000000048e1d6 in fast_function (func=0xdb8118, > pp_stack=0x7fffffff04a0, n=3, na=3, nk=0) > at ../Python/ceval.c:3963 > #185 0x000000000048ded1 in call_function (pp_stack=0x7fffffff04a0, > oparg=2) > at ../Python/ceval.c:3896 > #186 0x0000000000488839 in PyEval_EvalFrameEx (f=0x1563e50, > throwflag=0) at > ../Python/ceval.c:2673 > #187 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xc99a50, > globals=0xaf8b80, locals=0x0, args=0x142f6a8, > argcount=1, kws=0x1224880, kwcount=1, defs=0x0, defcount=0, > kwdefs=0x0, > closure=0x0) at ../Python/ceval.c:3311 > #188 0x00000000005ec861 in function_call (func=0xdb7f78, > arg=0x142f680, > kw=0x1473c00) > at ../Objects/funcobject.c:629 > #189 0x00000000005b580f in PyObject_Call (func=0xdb7f78, > arg=0x142f680, > kw=0x1473c00) > at ../Objects/abstract.c:2149 > #190 0x00000000005d166a in method_call (func=0xdb7f78, arg=0x142f680, > kw=0x1473c00) > at ../Objects/classobject.c:319 > #191 0x00000000005b580f in PyObject_Call (func=0x14181c8, > arg=0x7ffff7f96060, kw=0x1473c00) > at ../Objects/abstract.c:2149 > #192 0x00000000004436e8 in slot_tp_call (self=0xdbaa70, > args=0x7ffff7f96060, kwds=0x1473c00) > at ../Objects/typeobject.c:5040 > #193 0x00000000005b580f in PyObject_Call (func=0xdbaa70, > arg=0x7ffff7f96060, kw=0x1473c00) > at ../Objects/abstract.c:2149 > #194 0x000000000048eb38 in do_call (func=0xdbaa70, > pp_stack=0x7fffffff1320, > na=0, nk=1) at ../Python/ceval.c:4095 > #195 0x000000000048deed in call_function (pp_stack=0x7fffffff1320, > oparg=256) at ../Python/ceval.c:3898 > #196 0x0000000000488839 in PyEval_EvalFrameEx (f=0x14ca620, > throwflag=0) at > ../Python/ceval.c:2673 > #197 0x000000000048e1d6 in fast_function (func=0xf179b8, > pp_stack=0x7fffffff1e90, n=2, na=2, nk=0) > at ../Python/ceval.c:3963 > #198 0x000000000048ded1 in call_function (pp_stack=0x7fffffff1e90, > oparg=2) > at ../Python/ceval.c:3896 > #199 0x0000000000488839 in PyEval_EvalFrameEx (f=0x1492290, > throwflag=0) at > ../Python/ceval.c:2673 > #200 0x000000000048e1d6 in fast_function (func=0xf17288, > pp_stack=0x7fffffff2a00, n=2, na=2, nk=0) > at ../Python/ceval.c:3963 > #201 0x000000000048ded1 in call_function (pp_stack=0x7fffffff2a00, > oparg=2) > at ../Python/ceval.c:3896 > #202 0x0000000000488839 in PyEval_EvalFrameEx (f=0x14714c0, > throwflag=0) at > ../Python/ceval.c:2673 > ---Type <return> to continue, or q <return> to quit--- > #203 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xef6de8, > globals=0xe01830, locals=0x0, args=0x7ffff7f96088, > argcount=0, kws=0x1224bc8, kwcount=1, defs=0x0, defcount=0, > kwdefs=0x0, > closure=0x0) at ../Python/ceval.c:3311 > #204 0x00000000005ec861 in function_call (func=0xf17790, > arg=0x7ffff7f96060, kw=0x148f570) > at ../Objects/funcobject.c:629 > #205 0x00000000005b580f in PyObject_Call (func=0xf17790, > arg=0x7ffff7f96060, kw=0x148f570) > at ../Objects/abstract.c:2149 > #206 0x000000000048f1ab in ext_do_call (func=0xf17790, > pp_stack=0x7fffffff3710, flags=2, na=0, nk=0) > at ../Python/ceval.c:4190 > #207 0x0000000000488c75 in PyEval_EvalFrameEx (f=0x1475b50, > throwflag=0) at > ../Python/ceval.c:2714 > #208 0x000000000048e1d6 in fast_function (func=0xdb7a70, > pp_stack=0x7fffffff4280, n=1, na=1, nk=0) > at ../Python/ceval.c:3963 > #209 0x000000000048ded1 in call_function (pp_stack=0x7fffffff4280, > oparg=0) > at ../Python/ceval.c:3896 > #210 0x0000000000488839 in PyEval_EvalFrameEx (f=0x125d580, > throwflag=0) at > ../Python/ceval.c:2673 > #211 0x000000000048e1d6 in fast_function (func=0xdb8118, > pp_stack=0x7fffffff4df0, n=3, na=3, nk=0) > at ../Python/ceval.c:3963 > #212 0x000000000048ded1 in call_function (pp_stack=0x7fffffff4df0, > oparg=2) > at ../Python/ceval.c:3896 > #213 0x0000000000488839 in PyEval_EvalFrameEx (f=0x125d370, > throwflag=0) at > ../Python/ceval.c:2673 > #214 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xc99a50, > globals=0xaf8b80, locals=0x0, args=0x7ffff7e4a408, > argcount=1, kws=0x121d880, kwcount=1, defs=0x0, defcount=0, > kwdefs=0x0, > closure=0x0) at ../Python/ceval.c:3311 > #215 0x00000000005ec861 in function_call (func=0xdb7f78, > arg=0x7ffff7e4a3e0, kw=0xd4b020) > at ../Objects/funcobject.c:629 > #216 0x00000000005b580f in PyObject_Call (func=0xdb7f78, > arg=0x7ffff7e4a3e0, kw=0xd4b020) > at ../Objects/abstract.c:2149 > #217 0x00000000005d166a in method_call (func=0xdb7f78, > arg=0x7ffff7e4a3e0, > kw=0xd4b020) > at ../Objects/classobject.c:319 > #218 0x00000000005b580f in PyObject_Call (func=0xc00c18, > arg=0x7ffff7f96060, kw=0xd4b020) > at ../Objects/abstract.c:2149 > #219 0x00000000004436e8 in slot_tp_call (self=0xdbafb0, > args=0x7ffff7f96060, kwds=0xd4b020) > at ../Objects/typeobject.c:5040 > #220 0x00000000005b580f in PyObject_Call (func=0xdbafb0, > arg=0x7ffff7f96060, kw=0xd4b020) > at ../Objects/abstract.c:2149 > #221 0x000000000048eb38 in do_call (func=0xdbafb0, > pp_stack=0x7fffffff5c70, > na=0, nk=1) at ../Python/ceval.c:4095 > #222 0x000000000048deed in call_function (pp_stack=0x7fffffff5c70, > oparg=256) at ../Python/ceval.c:3898 > ---Type <return> to continue, or q <return> to quit--- > #223 0x0000000000488839 in PyEval_EvalFrameEx (f=0x1241a60, > throwflag=0) at > ../Python/ceval.c:2673 > #224 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xc99ea0, > globals=0xaf8b80, locals=0x0, args=0xc63bf0, > argcount=0, kws=0xc63bf0, kwcount=0, defs=0xd26bc8, defcount=2, > kwdefs=0x0, closure=0x0) > at ../Python/ceval.c:3311 > #225 0x000000000048e2f9 in fast_function (func=0xdb8288, > pp_stack=0x7fffffff6950, n=0, na=0, nk=0) > at ../Python/ceval.c:3973 > #226 0x000000000048ded1 in call_function (pp_stack=0x7fffffff6950, > oparg=0) > at ../Python/ceval.c:3896 > #227 0x0000000000488839 in PyEval_EvalFrameEx (f=0xc63a60, > throwflag=0) at > ../Python/ceval.c:2673 > #228 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xb2fd30, > globals=0xaf16a0, locals=0xaf16a0, args=0x0, > argcount=0, kws=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, > closure=0x0) at ../Python/ceval.c:3311 > #229 0x000000000047bf3a in PyEval_EvalCode (co=0xb2fd30, > globals=0xaf16a0, > locals=0xaf16a0) > at ../Python/ceval.c:761 > #230 0x00000000004a8cb7 in PyImport_ExecCodeModuleWithPathnames > (name=0x7fffffff97f0 "test", co=0xb2fd30, > pathname=0x7fffffff8700 "test.py", cpathname=0x7fffffff7630 > "__pycache__/test.cpython-32.pyc") > at ../Python/import.c:809 > #231 0x00000000004a9df6 in load_source_module (name=0x7fffffff97f0 > "test", > pathname=0x7fffffff8700 "test.py", > fp=0xc8a8e0) at ../Python/import.c:1339 > #232 0x00000000004ab7fa in load_module (name=0x7fffffff97f0 "test", > fp=0xc8a8e0, > pathname=0x7fffffff8700 "test.py", type=1, loader=0x0) at > ../Python/import.c:2102 > #233 0x00000000004adbfe in import_submodule (mod=0x8b9180, > subname=0x7fffffff97f0 "test", > fullname=0x7fffffff97f0 "test") at ../Python/import.c:2894 > #234 0x00000000004ad077 in load_next (mod=0x8b9180, altmod=0x8b9180, > p_name=0x7fffffff97b8, > buf=0x7fffffff97f0 "test", p_buflen=0x7fffffff97c8) at > ../Python/import.c:2706 > #235 0x00000000004ac268 in import_module_level (name=0x0, globals=0x0, > locals=0x0, fromlist=0x0, level=-1) > at ../Python/import.c:2422 > #236 0x00000000004ac776 in PyImport_ImportModuleLevel > (name=0x7ffff7f086f8 > "test", globals=0x0, locals=0x0, > fromlist=0x0, level=-1) at ../Python/import.c:2474 > #237 0x0000000000473d0c in builtin___import__ (self=0x7ffff7fc8f60, > args=0x7ffff7f6c4c0, kwds=0x0) > at ../Python/bltinmodule.c:168 > #238 0x000000000060ad2e in PyCFunction_Call (func=0x7ffff7fce0d8, > arg=0x7ffff7f6c4c0, kw=0x0) > at ../Objects/methodobject.c:84 > #239 0x000000000048dd01 in call_function (pp_stack=0x7fffffffaa00, > oparg=1) > at ../Python/ceval.c:3875 > #240 0x0000000000488839 in PyEval_EvalFrameEx (f=0xc8a6f0, > throwflag=0) at > ../Python/ceval.c:2673 > ---Type <return> to continue, or q <return> to quit--- > #241 0x00000000005e0d36 in gen_send_ex (gen=0x7ffff60b40e0, > arg=0x0, exc=0) > at ../Objects/genobject.c:82 > #242 0x00000000005e1660 in gen_iternext (gen=0x7ffff60b40e0) at > ../Objects/genobject.c:279 > #243 0x0000000000487b3f in PyEval_EvalFrameEx (f=0xb06530, > throwflag=0) at > ../Python/ceval.c:2496 > #244 0x000000000048e1d6 in fast_function (func=0xc2b9b8, > pp_stack=0x7fffffffc010, n=1, na=1, nk=0) > at ../Python/ceval.c:3963 > #245 0x000000000048ded1 in call_function (pp_stack=0x7fffffffc010, > oparg=1) > at ../Python/ceval.c:3896 > #246 0x0000000000488839 in PyEval_EvalFrameEx (f=0xc880a0, > throwflag=0) at > ../Python/ceval.c:2673 > #247 0x000000000048e1d6 in fast_function (func=0xc2b900, > pp_stack=0x7fffffffcb80, n=1, na=1, nk=0) > at ../Python/ceval.c:3963 > #248 0x000000000048ded1 in call_function (pp_stack=0x7fffffffcb80, > oparg=1) > at ../Python/ceval.c:3896 > #249 0x0000000000488839 in PyEval_EvalFrameEx (f=0xaf88e0, > throwflag=0) at > ../Python/ceval.c:2673 > #250 0x000000000048e1d6 in fast_function (func=0xc2c060, > pp_stack=0x7fffffffd6f0, n=1, na=1, nk=0) > at ../Python/ceval.c:3963 > #251 0x000000000048ded1 in call_function (pp_stack=0x7fffffffd6f0, > oparg=1) > at ../Python/ceval.c:3896 > #252 0x0000000000488839 in PyEval_EvalFrameEx (f=0xaf1cd0, > throwflag=0) at > ../Python/ceval.c:2673 > #253 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xc0c770, > globals=0xc5f410, locals=0x0, args=0xc1e970, > argcount=2, kws=0x0, kwcount=0, defs=0xc221d8, defcount=1, > kwdefs=0x0, > closure=0x0) at ../Python/ceval.c:3311 > #254 0x00000000005ec861 in function_call (func=0xc2c118, arg=0xc1e948, > kw=0x0) at ../Objects/funcobject.c:629 > #255 0x00000000005b580f in PyObject_Call (func=0xc2c118, arg=0xc1e948, > kw=0x0) at ../Objects/abstract.c:2149 > #256 0x00000000004d9204 in RunModule (modname=0x7ffff7f95040 > L"test.py", > set_argv0=1) at ../Modules/main.c:189 > #257 0x00000000004da307 in Py_Main (argc=3, argv=0x7ffff7f92040) at > ../Modules/main.c:636 > #258 0x000000000041bd77 in main (argc=3, argv=0x7fffffffe608) at > ../Modules/python.c:59 > _______________________________________________ > capi-sig mailing list > capi-sig(a)python.org > http://mail.python.org/mailman/listinfo/capi-sig > [View Less]

2 1

c extension corrupting the python interpreter ?
by Ian Miers June 20, 2012

June 20, 2012

Hello, Test runs of the project I work on have been seeing intermittent, usually non reproducible, errors that strongly sugest we are somehow corrupting parts of the python interpreter. I suspect rather strongly that the issue is caused by an error in some c extension we wrote. However, I am unsure if this is actually possible, and if it is , how to actually look for the error. Moreover, I'm not even sure what state python keeps around between runs (i've seen some errors persist across … [View More]deleting pyc files, which on face, would make my hypothesis unlikely). Can someone enlighten on any or all of this ? Details follow: Some of the errors we have seen: > import os.path E TypeError: __import__() argument 1 must be str without null bytes, not str Of course, there isn't a null there and the import works when run on its own. Another error :functions failing to load from c extensions that when examined, the output of help(module) showing random non asci characters around that function definition. In short, it looks like something (the pyc file, some internal state, maybe the actual .so file though it didn't look like it and that seems unlikely ) got corrupted. Some code causing sigabort from obmalloc. ( the trace of which is bellow) These errors happen even if we set PYTHONDONTWRITEBYTECODE. More perplexingly, in the case of one I am dealing with now who's trace is below , it appears to persist across removing all __pycache__ and pyc iles from the project . Is there some other state the python interpreter keeps across runs? My best guess is we are writing to something we aren't supposed to in one of the c extensions and messing things up from there. However, I'm not really sure how to track this down. Valgrind, even on a python debug build, seems to produce a lot of noise and its not clear what I should actually look for in the output. Bellow is the gdb trace for a test run using pytest against python3.2 inside virtualenv on ubuntu 11.04 Thanks, Ian Miers GDB trace : #0 0x00007ffff67acd05 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64 #1 0x00007ffff67b0ab6 in abort () at abort.c:92 #2 0x00000000004c1504 in Py_FatalError (msg=0x7ffffffcc820 "bad ID: Allocated using API '") at ../Python/pythonrun.c:2119 #3 0x0000000000421b0a in _PyObject_DebugCheckAddressApi (api=111 'o', p=0x15d3980) at ../Objects/obmalloc.c:1591 #4 0x0000000000421839 in _PyObject_DebugReallocApi (api=111 'o', p=0x15d3980, nbytes=28) at ../Objects/obmalloc.c:1498 #5 0x0000000000421635 in _PyObject_DebugRealloc (p=0x15d3980, nbytes=28) at ../Objects/obmalloc.c:1417 #6 0x000000000044620c in unicode_resize (unicode=0x15a4930, length=6) at ../Objects/unicodeobject.c:285 #7 0x00000000004463ad in _PyUnicode_New (length=6) at ../Objects/unicodeobject.c:339 #8 0x000000000044c269 in PyUnicodeUCS4_DecodeUTF8Stateful ( s=0x127bd88 "append\373\373\373\373\373\373\373", <incomplete sequence \373>, size=6, errors=0x64b6ae "surrogatepass", consumed=0x0) at ../Objects/unicodeobject.c:2531 #9 0x000000000044c20b in PyUnicodeUCS4_DecodeUTF8 ( s=0x127bd88 "append\373\373\373\373\373\373\373", <incomplete sequence \373>, size=6, errors=0x64b6ae "surrogatepass") at ../Objects/unicodeobject.c:2495 #10 0x00000000004b3e66 in r_object (p=0x7ffffffcdae0) at ../Python/marshal.c:818 #11 0x00000000004b3f31 in r_object (p=0x7ffffffcdae0) at ../Python/marshal.c:837 #12 0x00000000004b4876 in r_object (p=0x7ffffffcdae0) at ../Python/marshal.c:968 #13 0x00000000004b3f31 in r_object (p=0x7ffffffcdae0) at ../Python/marshal.c:837 #14 0x00000000004b4852 in r_object (p=0x7ffffffcdae0) at ../Python/marshal.c:965 #15 0x00000000004b3f31 in r_object (p=0x7ffffffcdae0) at ../Python/marshal.c:837 #16 0x00000000004b4852 in r_object (p=0x7ffffffcdae0) at ../Python/marshal.c:965 #17 0x00000000004b5204 in PyMarshal_ReadObjectFromString (str=0x16d3b30 "c", len=8715) at ../Python/marshal.c:1133 #18 0x00000000004b50e8 in PyMarshal_ReadLastObjectFromFile (fp=0x1668680) at ../Python/marshal.c:1094 #19 0x00000000004a92d0 in read_compiled_module ( cpathname=0x7ffffffcdc80 "/home/ian/code/venv_valgrind/charm/charm/toolbox/__pycache__/secretutil.cpython-32.pyc", fp=0x1668680) at ../Python/import.c:1058 #20 0x00000000004a9c8e in load_source_module (name=0x7ffffffcfe40 "charm.toolbox.secretutil", pathname=0x7ffffffced50 "/home/ian/code/venv_valgrind/charm/charm/toolbox/secretutil.py", fp=0x16c8c10) at ../Python/import.c:1315 #21 0x00000000004ab7fa in load_module (name=0x7ffffffcfe40 "charm.toolbox.secretutil", fp=0x16c8c10, pathname=0x7ffffffced50 "/home/ian/code/venv_valgrind/charm/charm/toolbox/secretutil.py", type=1, loader=0x0) ---Type <return> to continue, or q <return> to quit--- at ../Python/import.c:2102 #22 0x00000000004adbfe in import_submodule (mod=0x168b3a8, subname=0x7ffffffcfe4e "secretutil", fullname=0x7ffffffcfe40 "charm.toolbox.secretutil") at ../Python/import.c:2894 #23 0x00000000004ad077 in load_next (mod=0x168b3a8, altmod=0x168b3a8, p_name=0x7ffffffcfe08, buf=0x7ffffffcfe40 "charm.toolbox.secretutil", p_buflen=0x7ffffffcfe18) at ../Python/import.c:2706 #24 0x00000000004ac2f0 in import_module_level (name=0x0, globals=0x16c9760, locals=0x16c9760, fromlist=0x15ccae0, level=0) at ../Python/import.c:2430 #25 0x00000000004ac776 in PyImport_ImportModuleLevel (name=0x15c7a80 "charm.toolbox.secretutil", globals=0x16c9760, locals=0x16c9760, fromlist=0x15ccae0, level=0) at ../Python/import.c:2474 #26 0x0000000000473d0c in builtin___import__ (self=0x7ffff7fc8f60, args=0x16893c0, kwds=0x0) at ../Python/bltinmodule.c:168 #27 0x000000000060ad2e in PyCFunction_Call (func=0x7ffff7fce0d8, arg=0x16893c0, kw=0x0) at ../Objects/methodobject.c:84 #28 0x00000000005b580f in PyObject_Call (func=0x7ffff7fce0d8, arg=0x16893c0, kw=0x0) at ../Objects/abstract.c:2149 #29 0x000000000048d510 in PyEval_CallObjectWithKeywords (func=0x7ffff7fce0d8, arg=0x16893c0, kw=0x0) at ../Python/ceval.c:3755 #30 0x00000000004863b5 in PyEval_EvalFrameEx (f=0x1604560, throwflag=0) at ../Python/ceval.c:2332 #31 0x000000000048be4c in PyEval_EvalCodeEx (_co=0x169d998, globals=0x16c9760, locals=0x16c9760, args=0x0, argcount=0, kws=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3311 #32 0x000000000047bf3a in PyEval_EvalCode (co=0x169d998, globals=0x16c9760, locals=0x16c9760) at ../Python/ceval.c:761 #33 0x00000000004a8cb7 in PyImport_ExecCodeModuleWithPathnames (name=0x7ffffffd3ef0 "schemes.abenc.abenc_bsw07", co=0x169d998, pathname=0x7ffffffd1d30 "/home/ian/code/venv_valgrind/charm/schemes/abenc/__pycache__/abenc_bsw07.cpython-32.pyc", cpathname=0x7ffffffd1d30 "/home/ian/code/venv_valgrind/charm/schemes/abenc/__pycache__/abenc_bsw07.cpython-32.pyc") at ../Python/import.c:809 #34 0x00000000004a9df6 in load_source_module (name=0x7ffffffd3ef0 "schemes.abenc.abenc_bsw07", pathname=0x7ffffffd1d30 "/home/ian/code/venv_valgrind/charm/schemes/abenc/__pycache__/abenc_bsw07.cpython-32.pyc", fp=0x16c9de0) at ../Python/import.c:1339 #35 0x00000000004ab7fa in load_module (name=0x7ffffffd3ef0 "schemes.abenc.abenc_bsw07", fp=0x16c9de0, pathname=0x7ffffffd2e00 "/home/ian/code/venv_valgrind/charm/schemes/abenc/abenc_bsw07.py", type=1, loader=0x0) at ../Python/import.c:2102 After this point i think its irrelevant. #35 0x00000000004ab7fa in load_module (name=0x7ffffffd3ef0 "schemes.abenc.abenc_bsw07", fp=0x16c9de0, pathname=0x7ffffffd2e00 "/home/ian/code/venv_valgrind/charm/schemes/abenc/abenc_bsw07.py", type=1, loader=0x0) at ../Python/import.c:2102 ---Type <return> to continue, or q <return> to quit--- #36 0x00000000004adbfe in import_submodule (mod=0x15cfc18, subname=0x7ffffffd3efe "abenc_bsw07", fullname=0x7ffffffd3ef0 "schemes.abenc.abenc_bsw07") at ../Python/import.c:2894 #37 0x00000000004ad077 in load_next (mod=0x15cfc18, altmod=0x15cfc18, p_name=0x7ffffffd3eb8, buf=0x7ffffffd3ef0 "schemes.abenc.abenc_bsw07", p_buflen=0x7ffffffd3ec8) at ../Python/import.c:2706 #38 0x00000000004ac2f0 in import_module_level (name=0x0, globals=0x166d0d0, locals=0x166d0d0, fromlist=0x15cc220, level=0) at ../Python/import.c:2430 #39 0x00000000004ac776 in PyImport_ImportModuleLevel (name=0x15cc5b0 "schemes.abenc.abenc_bsw07", globals=0x166d0d0, locals=0x166d0d0, fromlist=0x15cc220, level=0) at ../Python/import.c:2474 #40 0x0000000000473d0c in builtin___import__ (self=0x7ffff7fc8f60, args=0x1689060, kwds=0x0) at ../Python/bltinmodule.c:168 #41 0x000000000060ad2e in PyCFunction_Call (func=0x7ffff7fce0d8, arg=0x1689060, kw=0x0) at ../Objects/methodobject.c:84 #42 0x00000000005b580f in PyObject_Call (func=0x7ffff7fce0d8, arg=0x1689060, kw=0x0) at ../Objects/abstract.c:2149 #43 0x000000000048d510 in PyEval_CallObjectWithKeywords (func=0x7ffff7fce0d8, arg=0x1689060, kw=0x0) at ../Python/ceval.c:3755 #44 0x00000000004863b5 in PyEval_EvalFrameEx (f=0x1684fb0, throwflag=0) at ../Python/ceval.c:2332 #45 0x000000000048be4c in PyEval_EvalCodeEx (_co=0x16876b8, globals=0x166d0d0, locals=0x166d0d0, args=0x0, argcount=0, kws=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3311 #46 0x000000000047bf3a in PyEval_EvalCode (co=0x16876b8, globals=0x166d0d0, locals=0x166d0d0) at ../Python/ceval.c:761 #47 0x00000000004a8cb7 in PyImport_ExecCodeModuleWithPathnames ( name=0x7ffffffd7fa0 "schemes.abenc.abenc_adapt_hybrid", co=0x16876b8, pathname=0x7ffffffd5de0 "/home/ian/code/venv_valgrind/charm/schemes/abenc/__pycache__/abenc_adapt_hybrid.cpython-32.pyc", cpathname=0x7ffffffd5de0 "/home/ian/code/venv_valgrind/charm/schemes/abenc/__pycache__/abenc_adapt_hybrid.cpython-32.pyc") at ../Python/import.c:809 #48 0x00000000004a9df6 in load_source_module (name=0x7ffffffd7fa0 "schemes.abenc.abenc_adapt_hybrid", pathname=0x7ffffffd5de0 "/home/ian/code/venv_valgrind/charm/schemes/abenc/__pycache__/abenc_adapt_hybrid.cpython-32.pyc", fp=0x1674450) at ../Python/import.c:1339 #49 0x00000000004ab7fa in load_module (name=0x7ffffffd7fa0 "schemes.abenc.abenc_adapt_hybrid", fp=0x1674450, pathname=0x7ffffffd6eb0 "/home/ian/code/venv_valgrind/charm/schemes/abenc/abenc_adapt_hybrid.py", type=1, loader=0x0) at ../Python/import.c:2102 #50 0x00000000004adbfe in import_submodule (mod=0x15cfc18, subname=0x7ffffffd7fae "abenc_adapt_hybrid", ---Type <return> to continue, or q <return> to quit--- fullname=0x7ffffffd7fa0 "schemes.abenc.abenc_adapt_hybrid") at ../Python/import.c:2894 #51 0x00000000004ad077 in load_next (mod=0x15cfc18, altmod=0x15cfc18, p_name=0x7ffffffd7f68, buf=0x7ffffffd7fa0 "schemes.abenc.abenc_adapt_hybrid", p_buflen=0x7ffffffd7f78) at ../Python/import.c:2706 #52 0x00000000004ac2f0 in import_module_level (name=0x0, globals=0x166f180, locals=0x166f180, fromlist=0x1549ca0, level=0) at ../Python/import.c:2430 #53 0x00000000004ac776 in PyImport_ImportModuleLevel (name=0x15cfac0 "schemes.abenc.abenc_adapt_hybrid", globals=0x166f180, locals=0x166f180, fromlist=0x1549ca0, level=0) at ../Python/import.c:2474 #54 0x0000000000473d0c in builtin___import__ (self=0x7ffff7fc8f60, args=0x14e3840, kwds=0x0) at ../Python/bltinmodule.c:168 #55 0x000000000060ad2e in PyCFunction_Call (func=0x7ffff7fce0d8, arg=0x14e3840, kw=0x0) at ../Objects/methodobject.c:84 #56 0x00000000005b580f in PyObject_Call (func=0x7ffff7fce0d8, arg=0x14e3840, kw=0x0) at ../Objects/abstract.c:2149 #57 0x000000000048d510 in PyEval_CallObjectWithKeywords (func=0x7ffff7fce0d8, arg=0x14e3840, kw=0x0) at ../Python/ceval.c:3755 #58 0x00000000004863b5 in PyEval_EvalFrameEx (f=0x1671cb0, throwflag=0) at ../Python/ceval.c:2332 #59 0x000000000048be4c in PyEval_EvalCodeEx (_co=0x1536d30, globals=0x166f180, locals=0x166f180, args=0x0, argcount=0, kws=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3311 #60 0x000000000047bf3a in PyEval_EvalCode (co=0x1536d30, globals=0x166f180, locals=0x166f180) at ../Python/ceval.c:761 #61 0x000000000047529b in builtin_exec (self=0x7ffff7fc8f60, args=0x15a6c90) at ../Python/bltinmodule.c:813 #62 0x000000000060ad10 in PyCFunction_Call (func=0x7ffff7fce6f0, arg=0x15a6c90, kw=0x0) at ../Objects/methodobject.c:81 #63 0x000000000048dd01 in call_function (pp_stack=0x7ffffffd9ef0, oparg=2) at ../Python/ceval.c:3875 #64 0x0000000000488839 in PyEval_EvalFrameEx (f=0x1671730, throwflag=0) at ../Python/ceval.c:2673 #65 0x000000000048be4c in PyEval_EvalCodeEx (_co=0x1419828, globals=0x1469780, locals=0x0, args=0x154a5b0, argcount=2, kws=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3311 #66 0x00000000005ec861 in function_call (func=0x14eec98, arg=0x154a588, kw=0x0) at ../Objects/funcobject.c:629 #67 0x00000000005b580f in PyObject_Call (func=0x14eec98, arg=0x154a588, kw=0x0) at ../Objects/abstract.c:2149 #68 0x00000000005d166a in method_call (func=0x14eec98, arg=0x154a588, kw=0x0) at ../Objects/classobject.c:319 #69 0x00000000005b580f in PyObject_Call (func=0x159c9c0, arg=0x15a73e0, kw=0x0) at ../Objects/abstract.c:2149 #70 0x00000000005b599c in call_function_tail (callable=0x159c9c0, args=0x15a73e0) at ../Objects/abstract.c:2181 #71 0x00000000005b5dce in PyObject_CallMethod (o=0x14f1760, name=0x64a99a "load_module", format=0x64a87e "s") at ../Objects/abstract.c:2258 ---Type <return> to continue, or q <return> to quit--- #72 0x00000000004ab8bf in load_module (name=0x7ffffffdbeb0 "schemes.test.abenc_test", fp=0x0, pathname=0x7ffffffdadc0 "", type=9, loader=0x14f1760) at ../Python/import.c:2130 #73 0x00000000004adbfe in import_submodule (mod=0x15cf768, subname=0x7ffffffdbebd "abenc_test", fullname=0x7ffffffdbeb0 "schemes.test.abenc_test") at ../Python/import.c:2894 #74 0x00000000004ad077 in load_next (mod=0x15cf768, altmod=0x15cf768, p_name=0x7ffffffdbe78, buf=0x7ffffffdbeb0 "schemes.test.abenc_test", p_buflen=0x7ffffffdbe88) at ../Python/import.c:2706 #75 0x00000000004ac2f0 in import_module_level (name=0x0, globals=0x0, locals=0x0, fromlist=0x0, level=-1) at ../Python/import.c:2430 #76 0x00000000004ac776 in PyImport_ImportModuleLevel (name=0x1529480 "schemes.test.abenc_test", globals=0x0, locals=0x0, fromlist=0x0, level=-1) at ../Python/import.c:2474 #77 0x0000000000473d0c in builtin___import__ (self=0x7ffff7fc8f60, args=0x15a0760, kwds=0x0) at ../Python/bltinmodule.c:168 #78 0x000000000060ad2e in PyCFunction_Call (func=0x7ffff7fce0d8, arg=0x15a0760, kw=0x0) at ../Objects/methodobject.c:84 #79 0x000000000048dd01 in call_function (pp_stack=0x7ffffffdd0c0, oparg=1) at ../Python/ceval.c:3875 #80 0x0000000000488839 in PyEval_EvalFrameEx (f=0x166df40, throwflag=0) at ../Python/ceval.c:2673 #81 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xf60a50, globals=0xecf240, locals=0x0, args=0x166de98, argcount=1, kws=0x166dea0, kwcount=1, defs=0xf7f4c0, defcount=2, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3311 #82 0x000000000048e2f9 in fast_function (func=0xf81568, pp_stack=0x7ffffffddda0, n=3, na=1, nk=1) at ../Python/ceval.c:3973 #83 0x000000000048ded1 in call_function (pp_stack=0x7ffffffddda0, oparg=256) at ../Python/ceval.c:3896 #84 0x0000000000488839 in PyEval_EvalFrameEx (f=0x166dcf0, throwflag=0) at ../Python/ceval.c:2673 #85 0x000000000048e1d6 in fast_function (func=0x1027568, pp_stack=0x7ffffffde910, n=1, na=1, nk=0) at ../Python/ceval.c:3963 #86 0x000000000048ded1 in call_function (pp_stack=0x7ffffffde910, oparg=0) at ../Python/ceval.c:3896 #87 0x0000000000488839 in PyEval_EvalFrameEx (f=0x166da90, throwflag=0) at ../Python/ceval.c:2673 #88 0x000000000048e1d6 in fast_function (func=0xf82be0, pp_stack=0x7ffffffdf480, n=3, na=3, nk=0) at ../Python/ceval.c:3963 #89 0x000000000048ded1 in call_function (pp_stack=0x7ffffffdf480, oparg=2) at ../Python/ceval.c:3896 #90 0x0000000000488839 in PyEval_EvalFrameEx (f=0x166d890, throwflag=0) at ../Python/ceval.c:2673 #91 0x000000000048e1d6 in fast_function (func=0x10274b0, pp_stack=0x7ffffffdfff0, n=1, na=1, nk=0) at ../Python/ceval.c:3963 ---Type <return> to continue, or q <return> to quit--- #92 0x000000000048ded1 in call_function (pp_stack=0x7ffffffdfff0, oparg=0) at ../Python/ceval.c:3896 #93 0x0000000000488839 in PyEval_EvalFrameEx (f=0x166d650, throwflag=0) at ../Python/ceval.c:2673 #94 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xfc7b08, globals=0xff8a10, locals=0x0, args=0x15242b8, argcount=1, kws=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3311 #95 0x00000000005ec861 in function_call (func=0x1026c98, arg=0x1524290, kw=0x0) at ../Objects/funcobject.c:629 #96 0x00000000005b580f in PyObject_Call (func=0x1026c98, arg=0x1524290, kw=0x0) at ../Objects/abstract.c:2149 #97 0x00000000005b6565 in PyObject_CallFunctionObjArgs (callable=0x1026c98) at ../Objects/abstract.c:2372 #98 0x00000000005d8c93 in property_descr_get (self=0xfeada8, obj=0x153cf40, type=0x1006600) at ../Objects/descrobject.c:1199 #99 0x000000000041e05d in _PyObject_GenericGetAttrWithDict (obj=0x153cf40, name=0x7ffff7e778c8, dict=0x0) at ../Objects/object.c:986 #100 0x000000000041e4c6 in PyObject_GenericGetAttr (obj=0x153cf40, name=0x7ffff7e778c8) at ../Objects/object.c:1048 #101 0x000000000041d98b in PyObject_GetAttr (v=0x153cf40, name=0x7ffff7e778c8) at ../Objects/object.c:833 #102 0x0000000000485cfe in PyEval_EvalFrameEx (f=0x166ce80, throwflag=0) at ../Python/ceval.c:2278 #103 0x000000000048e1d6 in fast_function (func=0x10271d0, pp_stack=0x7ffffffe19f0, n=1, na=1, nk=0) at ../Python/ceval.c:3963 #104 0x000000000048ded1 in call_function (pp_stack=0x7ffffffe19f0, oparg=0) at ../Python/ceval.c:3896 #105 0x0000000000488839 in PyEval_EvalFrameEx (f=0x156bbd0, throwflag=0) at ../Python/ceval.c:2673 #106 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xf076b8, globals=0xe01830, locals=0x0, args=0x156bb30, argcount=0, kws=0x156bb30, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, closure=0x15247d0) at ../Python/ceval.c:3311 #107 0x000000000048e2f9 in fast_function (func=0x14f6060, pp_stack=0x7ffffffe26d0, n=0, na=0, nk=0) at ../Python/ceval.c:3973 #108 0x000000000048ded1 in call_function (pp_stack=0x7ffffffe26d0, oparg=0) at ../Python/ceval.c:3896 #109 0x0000000000488839 in PyEval_EvalFrameEx (f=0x156b970, throwflag=0) at ../Python/ceval.c:2673 #110 0x000000000048e1d6 in fast_function (func=0xf82be0, pp_stack=0x7ffffffe3240, n=3, na=3, nk=0) at ../Python/ceval.c:3963 #111 0x000000000048ded1 in call_function (pp_stack=0x7ffffffe3240, oparg=2) at ../Python/ceval.c:3896 #112 0x0000000000488839 in PyEval_EvalFrameEx (f=0x156b760, throwflag=0) at ../Python/ceval.c:2673 #113 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xf07770, globals=0xe01830, locals=0x0, args=0x156b680, argcount=1, kws=0x156b688, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3311 #114 0x000000000048e2f9 in fast_function (func=0xf83288, pp_stack=0x7ffffffe3f20, n=1, na=1, nk=0) ---Type <return> to continue, or q <return> to quit--- at ../Python/ceval.c:3973 #115 0x000000000048ded1 in call_function (pp_stack=0x7ffffffe3f20, oparg=0) at ../Python/ceval.c:3896 #116 0x0000000000488839 in PyEval_EvalFrameEx (f=0x156b4e0, throwflag=0) at ../Python/ceval.c:2673 #117 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xfb9b08, globals=0xf47e40, locals=0x0, args=0x14fb908, argcount=3, kws=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3311 #118 0x00000000005ec861 in function_call (func=0xfcdbe0, arg=0x14fb8e0, kw=0x0) at ../Objects/funcobject.c:629 #119 0x00000000005b580f in PyObject_Call (func=0xfcdbe0, arg=0x14fb8e0, kw=0x0) at ../Objects/abstract.c:2149 #120 0x00000000005d166a in method_call (func=0xfcdbe0, arg=0x14fb8e0, kw=0x0) at ../Objects/classobject.c:319 #121 0x00000000005b580f in PyObject_Call (func=0x159c420, arg=0x15183a8, kw=0x0) at ../Objects/abstract.c:2149 #122 0x0000000000444231 in slot_tp_init (self=0x15248b0, args=0x15183a8, kwds=0x0) at ../Objects/typeobject.c:5278 #123 0x0000000000433f91 in type_call (type=0xff5db0, args=0x15183a8, kwds=0x0) at ../Objects/typeobject.c:691 #124 0x00000000005b580f in PyObject_Call (func=0xff5db0, arg=0x15183a8, kw=0x0) at ../Objects/abstract.c:2149 #125 0x000000000048eb38 in do_call (func=0xff5db0, pp_stack=0x7ffffffe4de0, na=2, nk=0) at ../Python/ceval.c:4095 #126 0x000000000048deed in call_function (pp_stack=0x7ffffffe4de0, oparg=2) at ../Python/ceval.c:3898 #127 0x0000000000488839 in PyEval_EvalFrameEx (f=0x156b290, throwflag=0) at ../Python/ceval.c:2673 #128 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xfc0a50, globals=0xf47e40, locals=0x0, args=0x7ffff7f96088, argcount=0, kws=0x154a808, kwcount=1, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3311 #129 0x00000000005ec861 in function_call (func=0xfd0288, arg=0x7ffff7f96060, kw=0x1473960) at ../Objects/funcobject.c:629 #130 0x00000000005b580f in PyObject_Call (func=0xfd0288, arg=0x7ffff7f96060, kw=0x1473960) at ../Objects/abstract.c:2149 #131 0x000000000048f1ab in ext_do_call (func=0xfd0288, pp_stack=0x7ffffffe5af0, flags=2, na=0, nk=0) at ../Python/ceval.c:4190 #132 0x0000000000488c75 in PyEval_EvalFrameEx (f=0x166cc70, throwflag=0) at ../Python/ceval.c:2714 #133 0x000000000048e1d6 in fast_function (func=0xdb7a70, pp_stack=0x7ffffffe6660, n=1, na=1, nk=0) at ../Python/ceval.c:3963 #134 0x000000000048ded1 in call_function (pp_stack=0x7ffffffe6660, oparg=0) at ../Python/ceval.c:3896 #135 0x0000000000488839 in PyEval_EvalFrameEx (f=0x105e7a0, throwflag=0) at ../Python/ceval.c:2673 #136 0x000000000048be4c in PyEval_EvalCodeEx (_co=0x10fa600, globals=0x111b430, locals=0x0, args=0x151f6a8, argcount=1, kws=0x15096e8, kwcount=2, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3311 #137 0x00000000005ec861 in function_call (func=0x1100f78, arg=0x151f680, kw=0x1565d60) at ../Objects/funcobject.c:629 #138 0x00000000005b580f in PyObject_Call (func=0x1100f78, arg=0x151f680, kw=0x1565d60) ---Type <return> to continue, or q <return> to quit--- at ../Objects/abstract.c:2149 #139 0x000000000048f1ab in ext_do_call (func=0x1100f78, pp_stack=0x7ffffffe7370, flags=2, na=1, nk=0) at ../Python/ceval.c:4190 #140 0x0000000000488c75 in PyEval_EvalFrameEx (f=0x166ca60, throwflag=0) at ../Python/ceval.c:2714 #141 0x000000000048e1d6 in fast_function (func=0xdb7a70, pp_stack=0x7ffffffe7ee0, n=1, na=1, nk=0) at ../Python/ceval.c:3963 #142 0x000000000048ded1 in call_function (pp_stack=0x7ffffffe7ee0, oparg=0) at ../Python/ceval.c:3896 #143 0x0000000000488839 in PyEval_EvalFrameEx (f=0x105e200, throwflag=0) at ../Python/ceval.c:2673 #144 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xfd9bc0, globals=0xfac190, locals=0x0, args=0x7ffff7f96088, argcount=0, kws=0x14f4cc0, kwcount=2, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3311 #145 0x00000000005ec861 in function_call (func=0x102d4b0, arg=0x7ffff7f96060, kw=0x1566eb0) at ../Objects/funcobject.c:629 #146 0x00000000005b580f in PyObject_Call (func=0x102d4b0, arg=0x7ffff7f96060, kw=0x1566eb0) at ../Objects/abstract.c:2149 #147 0x000000000048f1ab in ext_do_call (func=0x102d4b0, pp_stack=0x7ffffffe8bf0, flags=2, na=0, nk=0) at ../Python/ceval.c:4190 #148 0x0000000000488c75 in PyEval_EvalFrameEx (f=0x162a360, throwflag=0) at ../Python/ceval.c:2714 #149 0x000000000048e1d6 in fast_function (func=0xdb7a70, pp_stack=0x7ffffffe9760, n=1, na=1, nk=0) at ../Python/ceval.c:3963 #150 0x000000000048ded1 in call_function (pp_stack=0x7ffffffe9760, oparg=0) at ../Python/ceval.c:3896 #151 0x0000000000488839 in PyEval_EvalFrameEx (f=0x1615390, throwflag=0) at ../Python/ceval.c:2673 #152 0x000000000048e1d6 in fast_function (func=0xdb8118, pp_stack=0x7ffffffea2d0, n=3, na=3, nk=0) at ../Python/ceval.c:3963 #153 0x000000000048ded1 in call_function (pp_stack=0x7ffffffea2d0, oparg=2) at ../Python/ceval.c:3896 #154 0x0000000000488839 in PyEval_EvalFrameEx (f=0x1596aa0, throwflag=0) at ../Python/ceval.c:2673 #155 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xc99b08, globals=0xaf8b80, locals=0x0, args=0x1418358, argcount=2, kws=0x1500f88, kwcount=1, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3311 #156 0x00000000005ec861 in function_call (func=0xdb8060, arg=0x1418330, kw=0x14ae360) at ../Objects/funcobject.c:629 #157 0x00000000005b580f in PyObject_Call (func=0xdb8060, arg=0x1418330, kw=0x14ae360) at ../Objects/abstract.c:2149 #158 0x000000000048f1ab in ext_do_call (func=0xdb8060, pp_stack=0x7ffffffeafe0, flags=2, na=2, nk=0) at ../Python/ceval.c:4190 ---Type <return> to continue, or q <return> to quit--- #159 0x0000000000488c75 in PyEval_EvalFrameEx (f=0x161e660, throwflag=0) at ../Python/ceval.c:2714 #160 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xf01320, globals=0xe01830, locals=0x0, args=0x166c618, argcount=0, kws=0x166c618, kwcount=1, defs=0x0, defcount=0, kwdefs=0x0, closure=0x1518330) at ../Python/ceval.c:3311 #161 0x000000000048e2f9 in fast_function (func=0x14f64b0, pp_stack=0x7ffffffebcc0, n=2, na=0, nk=1) at ../Python/ceval.c:3973 #162 0x000000000048ded1 in call_function (pp_stack=0x7ffffffebcc0, oparg=256) at ../Python/ceval.c:3896 #163 0x0000000000488839 in PyEval_EvalFrameEx (f=0x166c460, throwflag=0) at ../Python/ceval.c:2673 #164 0x00000000005e0d36 in gen_send_ex (gen=0x1520760, arg=0x0, exc=0) at ../Objects/genobject.c:82 #165 0x00000000005e1660 in gen_iternext (gen=0x1520760) at ../Objects/genobject.c:279 #166 0x00000000005eff93 in listextend (self=0x142e2b8, b=0x1520760) at ../Objects/listobject.c:831 #167 0x000000000048dadb in call_function (pp_stack=0x7ffffffec860, oparg=1) at ../Python/ceval.c:3863 #168 0x0000000000488839 in PyEval_EvalFrameEx (f=0x15654f0, throwflag=0) at ../Python/ceval.c:2673 #169 0x000000000048e1d6 in fast_function (func=0xf83be0, pp_stack=0x7ffffffed3d0, n=3, na=3, nk=0) at ../Python/ceval.c:3963 #170 0x000000000048ded1 in call_function (pp_stack=0x7ffffffed3d0, oparg=2) at ../Python/ceval.c:3896 #171 0x0000000000488839 in PyEval_EvalFrameEx (f=0x1565280, throwflag=0) at ../Python/ceval.c:2673 #172 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xf103d8, globals=0xe01830, locals=0x0, args=0x1565220, argcount=1, kws=0x1565228, kwcount=0, defs=0xf7f628, defcount=2, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3311 #173 0x000000000048e2f9 in fast_function (func=0xf83b28, pp_stack=0x7ffffffee0b0, n=1, na=1, nk=0) at ../Python/ceval.c:3973 #174 0x000000000048ded1 in call_function (pp_stack=0x7ffffffee0b0, oparg=0) at ../Python/ceval.c:3896 #175 0x0000000000488839 in PyEval_EvalFrameEx (f=0x1565090, throwflag=0) at ../Python/ceval.c:2673 #176 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xefaea0, globals=0xe01830, locals=0x0, args=0x7ffff7f96088, argcount=0, kws=0x1518f10, kwcount=1, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3311 #177 0x00000000005ec861 in function_call (func=0xf17e08, arg=0x7ffff7f96060, kw=0x14b6aa0) at ../Objects/funcobject.c:629 #178 0x00000000005b580f in PyObject_Call (func=0xf17e08, arg=0x7ffff7f96060, kw=0x14b6aa0) at ../Objects/abstract.c:2149 #179 0x000000000048f1ab in ext_do_call (func=0xf17e08, pp_stack=0x7ffffffeedc0, flags=2, na=0, nk=0) at ../Python/ceval.c:4190 #180 0x0000000000488c75 in PyEval_EvalFrameEx (f=0x15642c0, throwflag=0) at ../Python/ceval.c:2714 ---Type <return> to continue, or q <return> to quit--- #181 0x000000000048e1d6 in fast_function (func=0xdb7a70, pp_stack=0x7ffffffef930, n=1, na=1, nk=0) at ../Python/ceval.c:3963 #182 0x000000000048ded1 in call_function (pp_stack=0x7ffffffef930, oparg=0) at ../Python/ceval.c:3896 #183 0x0000000000488839 in PyEval_EvalFrameEx (f=0x1564060, throwflag=0) at ../Python/ceval.c:2673 #184 0x000000000048e1d6 in fast_function (func=0xdb8118, pp_stack=0x7fffffff04a0, n=3, na=3, nk=0) at ../Python/ceval.c:3963 #185 0x000000000048ded1 in call_function (pp_stack=0x7fffffff04a0, oparg=2) at ../Python/ceval.c:3896 #186 0x0000000000488839 in PyEval_EvalFrameEx (f=0x1563e50, throwflag=0) at ../Python/ceval.c:2673 #187 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xc99a50, globals=0xaf8b80, locals=0x0, args=0x142f6a8, argcount=1, kws=0x1224880, kwcount=1, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3311 #188 0x00000000005ec861 in function_call (func=0xdb7f78, arg=0x142f680, kw=0x1473c00) at ../Objects/funcobject.c:629 #189 0x00000000005b580f in PyObject_Call (func=0xdb7f78, arg=0x142f680, kw=0x1473c00) at ../Objects/abstract.c:2149 #190 0x00000000005d166a in method_call (func=0xdb7f78, arg=0x142f680, kw=0x1473c00) at ../Objects/classobject.c:319 #191 0x00000000005b580f in PyObject_Call (func=0x14181c8, arg=0x7ffff7f96060, kw=0x1473c00) at ../Objects/abstract.c:2149 #192 0x00000000004436e8 in slot_tp_call (self=0xdbaa70, args=0x7ffff7f96060, kwds=0x1473c00) at ../Objects/typeobject.c:5040 #193 0x00000000005b580f in PyObject_Call (func=0xdbaa70, arg=0x7ffff7f96060, kw=0x1473c00) at ../Objects/abstract.c:2149 #194 0x000000000048eb38 in do_call (func=0xdbaa70, pp_stack=0x7fffffff1320, na=0, nk=1) at ../Python/ceval.c:4095 #195 0x000000000048deed in call_function (pp_stack=0x7fffffff1320, oparg=256) at ../Python/ceval.c:3898 #196 0x0000000000488839 in PyEval_EvalFrameEx (f=0x14ca620, throwflag=0) at ../Python/ceval.c:2673 #197 0x000000000048e1d6 in fast_function (func=0xf179b8, pp_stack=0x7fffffff1e90, n=2, na=2, nk=0) at ../Python/ceval.c:3963 #198 0x000000000048ded1 in call_function (pp_stack=0x7fffffff1e90, oparg=2) at ../Python/ceval.c:3896 #199 0x0000000000488839 in PyEval_EvalFrameEx (f=0x1492290, throwflag=0) at ../Python/ceval.c:2673 #200 0x000000000048e1d6 in fast_function (func=0xf17288, pp_stack=0x7fffffff2a00, n=2, na=2, nk=0) at ../Python/ceval.c:3963 #201 0x000000000048ded1 in call_function (pp_stack=0x7fffffff2a00, oparg=2) at ../Python/ceval.c:3896 #202 0x0000000000488839 in PyEval_EvalFrameEx (f=0x14714c0, throwflag=0) at ../Python/ceval.c:2673 ---Type <return> to continue, or q <return> to quit--- #203 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xef6de8, globals=0xe01830, locals=0x0, args=0x7ffff7f96088, argcount=0, kws=0x1224bc8, kwcount=1, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3311 #204 0x00000000005ec861 in function_call (func=0xf17790, arg=0x7ffff7f96060, kw=0x148f570) at ../Objects/funcobject.c:629 #205 0x00000000005b580f in PyObject_Call (func=0xf17790, arg=0x7ffff7f96060, kw=0x148f570) at ../Objects/abstract.c:2149 #206 0x000000000048f1ab in ext_do_call (func=0xf17790, pp_stack=0x7fffffff3710, flags=2, na=0, nk=0) at ../Python/ceval.c:4190 #207 0x0000000000488c75 in PyEval_EvalFrameEx (f=0x1475b50, throwflag=0) at ../Python/ceval.c:2714 #208 0x000000000048e1d6 in fast_function (func=0xdb7a70, pp_stack=0x7fffffff4280, n=1, na=1, nk=0) at ../Python/ceval.c:3963 #209 0x000000000048ded1 in call_function (pp_stack=0x7fffffff4280, oparg=0) at ../Python/ceval.c:3896 #210 0x0000000000488839 in PyEval_EvalFrameEx (f=0x125d580, throwflag=0) at ../Python/ceval.c:2673 #211 0x000000000048e1d6 in fast_function (func=0xdb8118, pp_stack=0x7fffffff4df0, n=3, na=3, nk=0) at ../Python/ceval.c:3963 #212 0x000000000048ded1 in call_function (pp_stack=0x7fffffff4df0, oparg=2) at ../Python/ceval.c:3896 #213 0x0000000000488839 in PyEval_EvalFrameEx (f=0x125d370, throwflag=0) at ../Python/ceval.c:2673 #214 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xc99a50, globals=0xaf8b80, locals=0x0, args=0x7ffff7e4a408, argcount=1, kws=0x121d880, kwcount=1, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3311 #215 0x00000000005ec861 in function_call (func=0xdb7f78, arg=0x7ffff7e4a3e0, kw=0xd4b020) at ../Objects/funcobject.c:629 #216 0x00000000005b580f in PyObject_Call (func=0xdb7f78, arg=0x7ffff7e4a3e0, kw=0xd4b020) at ../Objects/abstract.c:2149 #217 0x00000000005d166a in method_call (func=0xdb7f78, arg=0x7ffff7e4a3e0, kw=0xd4b020) at ../Objects/classobject.c:319 #218 0x00000000005b580f in PyObject_Call (func=0xc00c18, arg=0x7ffff7f96060, kw=0xd4b020) at ../Objects/abstract.c:2149 #219 0x00000000004436e8 in slot_tp_call (self=0xdbafb0, args=0x7ffff7f96060, kwds=0xd4b020) at ../Objects/typeobject.c:5040 #220 0x00000000005b580f in PyObject_Call (func=0xdbafb0, arg=0x7ffff7f96060, kw=0xd4b020) at ../Objects/abstract.c:2149 #221 0x000000000048eb38 in do_call (func=0xdbafb0, pp_stack=0x7fffffff5c70, na=0, nk=1) at ../Python/ceval.c:4095 #222 0x000000000048deed in call_function (pp_stack=0x7fffffff5c70, oparg=256) at ../Python/ceval.c:3898 ---Type <return> to continue, or q <return> to quit--- #223 0x0000000000488839 in PyEval_EvalFrameEx (f=0x1241a60, throwflag=0) at ../Python/ceval.c:2673 #224 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xc99ea0, globals=0xaf8b80, locals=0x0, args=0xc63bf0, argcount=0, kws=0xc63bf0, kwcount=0, defs=0xd26bc8, defcount=2, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3311 #225 0x000000000048e2f9 in fast_function (func=0xdb8288, pp_stack=0x7fffffff6950, n=0, na=0, nk=0) at ../Python/ceval.c:3973 #226 0x000000000048ded1 in call_function (pp_stack=0x7fffffff6950, oparg=0) at ../Python/ceval.c:3896 #227 0x0000000000488839 in PyEval_EvalFrameEx (f=0xc63a60, throwflag=0) at ../Python/ceval.c:2673 #228 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xb2fd30, globals=0xaf16a0, locals=0xaf16a0, args=0x0, argcount=0, kws=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3311 #229 0x000000000047bf3a in PyEval_EvalCode (co=0xb2fd30, globals=0xaf16a0, locals=0xaf16a0) at ../Python/ceval.c:761 #230 0x00000000004a8cb7 in PyImport_ExecCodeModuleWithPathnames (name=0x7fffffff97f0 "test", co=0xb2fd30, pathname=0x7fffffff8700 "test.py", cpathname=0x7fffffff7630 "__pycache__/test.cpython-32.pyc") at ../Python/import.c:809 #231 0x00000000004a9df6 in load_source_module (name=0x7fffffff97f0 "test", pathname=0x7fffffff8700 "test.py", fp=0xc8a8e0) at ../Python/import.c:1339 #232 0x00000000004ab7fa in load_module (name=0x7fffffff97f0 "test", fp=0xc8a8e0, pathname=0x7fffffff8700 "test.py", type=1, loader=0x0) at ../Python/import.c:2102 #233 0x00000000004adbfe in import_submodule (mod=0x8b9180, subname=0x7fffffff97f0 "test", fullname=0x7fffffff97f0 "test") at ../Python/import.c:2894 #234 0x00000000004ad077 in load_next (mod=0x8b9180, altmod=0x8b9180, p_name=0x7fffffff97b8, buf=0x7fffffff97f0 "test", p_buflen=0x7fffffff97c8) at ../Python/import.c:2706 #235 0x00000000004ac268 in import_module_level (name=0x0, globals=0x0, locals=0x0, fromlist=0x0, level=-1) at ../Python/import.c:2422 #236 0x00000000004ac776 in PyImport_ImportModuleLevel (name=0x7ffff7f086f8 "test", globals=0x0, locals=0x0, fromlist=0x0, level=-1) at ../Python/import.c:2474 #237 0x0000000000473d0c in builtin___import__ (self=0x7ffff7fc8f60, args=0x7ffff7f6c4c0, kwds=0x0) at ../Python/bltinmodule.c:168 #238 0x000000000060ad2e in PyCFunction_Call (func=0x7ffff7fce0d8, arg=0x7ffff7f6c4c0, kw=0x0) at ../Objects/methodobject.c:84 #239 0x000000000048dd01 in call_function (pp_stack=0x7fffffffaa00, oparg=1) at ../Python/ceval.c:3875 #240 0x0000000000488839 in PyEval_EvalFrameEx (f=0xc8a6f0, throwflag=0) at ../Python/ceval.c:2673 ---Type <return> to continue, or q <return> to quit--- #241 0x00000000005e0d36 in gen_send_ex (gen=0x7ffff60b40e0, arg=0x0, exc=0) at ../Objects/genobject.c:82 #242 0x00000000005e1660 in gen_iternext (gen=0x7ffff60b40e0) at ../Objects/genobject.c:279 #243 0x0000000000487b3f in PyEval_EvalFrameEx (f=0xb06530, throwflag=0) at ../Python/ceval.c:2496 #244 0x000000000048e1d6 in fast_function (func=0xc2b9b8, pp_stack=0x7fffffffc010, n=1, na=1, nk=0) at ../Python/ceval.c:3963 #245 0x000000000048ded1 in call_function (pp_stack=0x7fffffffc010, oparg=1) at ../Python/ceval.c:3896 #246 0x0000000000488839 in PyEval_EvalFrameEx (f=0xc880a0, throwflag=0) at ../Python/ceval.c:2673 #247 0x000000000048e1d6 in fast_function (func=0xc2b900, pp_stack=0x7fffffffcb80, n=1, na=1, nk=0) at ../Python/ceval.c:3963 #248 0x000000000048ded1 in call_function (pp_stack=0x7fffffffcb80, oparg=1) at ../Python/ceval.c:3896 #249 0x0000000000488839 in PyEval_EvalFrameEx (f=0xaf88e0, throwflag=0) at ../Python/ceval.c:2673 #250 0x000000000048e1d6 in fast_function (func=0xc2c060, pp_stack=0x7fffffffd6f0, n=1, na=1, nk=0) at ../Python/ceval.c:3963 #251 0x000000000048ded1 in call_function (pp_stack=0x7fffffffd6f0, oparg=1) at ../Python/ceval.c:3896 #252 0x0000000000488839 in PyEval_EvalFrameEx (f=0xaf1cd0, throwflag=0) at ../Python/ceval.c:2673 #253 0x000000000048be4c in PyEval_EvalCodeEx (_co=0xc0c770, globals=0xc5f410, locals=0x0, args=0xc1e970, argcount=2, kws=0x0, kwcount=0, defs=0xc221d8, defcount=1, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:3311 #254 0x00000000005ec861 in function_call (func=0xc2c118, arg=0xc1e948, kw=0x0) at ../Objects/funcobject.c:629 #255 0x00000000005b580f in PyObject_Call (func=0xc2c118, arg=0xc1e948, kw=0x0) at ../Objects/abstract.c:2149 #256 0x00000000004d9204 in RunModule (modname=0x7ffff7f95040 L"test.py", set_argv0=1) at ../Modules/main.c:189 #257 0x00000000004da307 in Py_Main (argc=3, argv=0x7ffff7f92040) at ../Modules/main.c:636 #258 0x000000000041bd77 in main (argc=3, argv=0x7fffffffe608) at ../Modules/python.c:59 [View Less]

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Clarifying tp_new() and tp_init() arguments and PEP-253
by Mateusz Loskot June 8, 2012

June 8, 2012

Hi, I'm reading PEP-253 on Subtyping Built-in Types [1] which by the way has been extremely helpful to understand details of handling types using Python C API. In the "Creating a subtype of a built-in type in C" section, the document includes the following note on the two slots arguments: "Both tp_new() and tp_init() should receive exactly the same 'args' and 'kwds' arguments, and both should check that the arguments are acceptable, because they may be called independently." I can … [View More]understand what it says, but I'm unsure about how to interpret it. Let's consider a simple case of custom type definition, without subclassing involved. Does this note recommend to simply repeat the whole args and kwds parsing and checking in both, tp_new and tp_init? Like this Noddy example from the Python 3 documentation [2]: static PyTypeObject noddy_NoddyType = { ... }; int Noddy_init(Noddy* self, PyObject* args, PyObject* kwds); { PyObject *first=NULL, *last=NULL, *tmp; static char *kwlist[] = {"first", "last", "number", NULL}; if (! PyArg_ParseTupleAndKeywords(args, kwds, "|OOi", kwlist, &first, &last, &self->number)) return -1; /* check args, initialise Noddy members, etc. */ } Now as per the PEP-253 "both should check that the arguments are acceptable", so tp_new gets the very same arguments parsing/checking copied & pasted: PyObject* Noddy_new(PyTypeObject* type, PyObject* args, PyObject* kwds) { PyObject *first=NULL, *last=NULL, *tmp; static char *kwlist[] = {"first", "last", "number", NULL}; if (! PyArg_ParseTupleAndKeywords(args, kwds, "|OOi", kwlist, &first, &last, &self->number)) return -1; /* Now, what to do with the args? Ignore? DO or DO NOT repeat the tp_init work of Noddy members initialization? */ Noddy *self; self = (Noddy *)type->tp_alloc(type, 0); if (self != NULL) { self->first = PyUnicode_FromString(""); if (self->first == NULL) { Py_DECREF(self); return NULL; } self->last = PyUnicode_FromString(""); if (self->last == NULL) { Py_DECREF(self); return NULL; } self->number = 0; } return (PyObject *)self; } Repeating the question from the comment above, what tp_new is supposed to do with the arguments? The Noddy example from the manual simply ignores args and kwds, it does not even perform the checks recommended by the PEP-253. What the Noddy_new should look like to conform with the PEP-253 recommendations? The PEP-253 also includes this recommendation related to my question: "This should first call the base type's tp_new() slot and then initialize the subtype's additional data members. To further initialize the instance, the tp_init() slot is typically called. Note that the tp_new() slot should *not* call the tp_init() slot;" In the context of the Noddy example, the "initialize the subtype's additional data members" means zero-initialisation with empty strings. Makes sense. Then "To further initialize the instance", tp_init is called of course, so calling tp_init from tp_new is not advised, this is clear. So, AFAIU, the PEP-253 suggests to make tp_new check the args and kwds, report (early) any unacceptable arguments, but not necessarily to use the values to initialise the instance, as that is tp_init's job. Does it sound right? BTW, I understand role of tp_new and tp_init for initialising object would be different depending if noddy_NoddyType is considered as immutable object type or not. But, let's simplify and say noddy_NoddyType is a typical Python object type. [1] http://www.python.org/dev/peps/pep-0253/ [2] http://docs.python.org/py3k/extending/newtypes.html Best regards, -- Mateusz Loskot, http://mateusz.loskot.net [View Less]

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Adding a method to an extension class changes its 'tp_getattro' behavior?
by Tres Seaver June 5, 2012

June 5, 2012

I'm trying to flesh out the 'zope.proxy' wrapper class to include methods defined in newer Python versions: in particular, in Python 2.6, the proxy's delegation to the wrapped object works without an explicit '__reduce__' on the wrapper, but new B&D code in Python 2.7 breaks that. So, I went to add '__reduced__' to the wrapper's methods, using the follwing patch: --------------------------- %< ------------------------ === modified file 'src/zope/proxy/_zope_proxy_proxy.c' --- src/zope/… [View More]

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