Re: [Pyobjc-dev] Getting a better stack trace with PyObjc possible?

[Ronald O. <ron...@ma...>]

On 27 Dec, 2011, at 22:08, Marc Van Olmen wrote:

> hi,
> 
> I looked around the web and more specific stack overflow: I was hoping if there is something I can do to have a better stack trace from pyobjc/python.

<http://pypi.python.org/pypi/faulthandler/> might be helpful for this. I haven't used it myself yet, but as that module will be part of the stdlib in python 3.3 it should work well.

This module would allow you to write code that saves a python stacktrace when a fatal error occurs, which users could then mail to you.

Ronald

> 
> For example my end users send me this, after a hard crash.
> 
> 0 libobjc.A.dylib 0x99b51c22 (anonymous namespace)::AutoreleasePoolPage::pop(void*) + 350
> 1 com.apple.CoreFoundation 0x97b2c515 _CFAutoreleasePoolPop + 53
> 2 com.apple.Foundation 0x96316b87 -[NSAutoreleasePool release] + 131
> 3 com.apple.CoreFoundation 0x97b01749 CFRelease + 169
> 4 _objc.so 0x04019c21 object_dealloc + 257
> 5 org.python.python 0x01c6e2cf subtype_dealloc + 575
> 6 org.python.python 0x01c3a041 frame_dealloc + 385
> 7 org.python.python 0x01ced87c tb_dealloc + 156
> 8 org.python.python 0x01ced88c tb_dealloc + 172
> 9 org.python.python 0x01c52179 PyDict_DelItem + 249
> 10 org.python.python 0x01c52251 PyDict_DelItemString + 49
> 11 org.python.python 0x01cb940a PyEval_EvalFrameEx + 4810
> 12 org.python.python 0x01cbd6a6 PyEval_EvalFrameEx + 21862
> 13 org.python.python 0x01cbd6a6 PyEval_EvalFrameEx + 21862
> 14 org.python.python 0x01cbd6a6 PyEval_EvalFrameEx + 21862
> 15 org.python.python 0x01cbd6a6 PyEval_EvalFrameEx + 21862
> 16 org.python.python 0x01cbee9d PyEval_EvalCodeEx + 2109
> 17 org.python.python 0x01c3ba36 function_call + 166
> 18 org.python.python 0x01c0a315 PyObject_Call + 85
> 19 org.python.python 0x01c1c8e6 instancemethod_call + 422
> 20 org.python.python 0x01c0a315 PyObject_Call + 85
> 21 org.python.python 0x01cb717e PyEval_CallObjectWithKeywords + 78
> 22 org.python.python 0x01cf89d6 t_bootstrap + 70
> 23 libsystem_c.dylib 0x957c2ed9 _pthread_start + 335
> 24 libsystem_c.dylib 0x957c66de thread_start + 34
> 
> Would be nice to know which method and object was called at 
> 
> PyEval_EvalFrameEx + 21862
> 
> for example.
> 
> Marc
> ------------------------------------------------------------------------------
> Write once. Port to many.
> Get the SDK and tools to simplify cross-platform app development. Create 
> new or port existing apps to sell to consumers worldwide. Explore the 
> Intel AppUpSM program developer opportunity. appdeveloper.intel.com/join
> http://p.sf.net/sfu/intel-appdev_______________________________________________
> Pyobjc-dev mailing list
> Pyo...@li...
> https://lists.sourceforge.net/lists/listinfo/pyobjc-dev