[Tutor] Getting traceback info from C-API

Stefan Behnel stefan_ml at behnel.de
Tue Apr 6 08:23:24 CEST 2010

Shu, 06.04.2010 01:06:
>  I have a CAPI extension module that is giving me MemoryError
> exceptions from once in a while with no other information

MemoryError is a bit special in that it usually only occurs when memory 
allocation fails, in which case raising a new exception object would likely 
also fail. So there is a pre-allocated MemoryError instance without any 
error text that can be raised in this case.

> so clearly
> none of my exception handlers are catching it. Is there any way I can
> traceback information for the extension module?

Is it a module that you have written yourself? In that case, you can 
manually add traceback information for each function in your code. There is 
a PyTraceBack_Here() function for that.

However, it might be easier to just rewrite your module in Cython, which 
will do this automatically for every function you write.


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