[C++-sig] Re: Exception translation to python classes

[Niall Douglas]

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On 22 Sep 2003 at 12:50, Mike Rovner wrote:

> Niall Douglas wrote:
> 
> > I was wondering if anyone had any experience or could point me to
> > some example code for translating C++ exceptions by using
> > PyErr_SetObject to the Boost.Python wrap of the appropriate C++
> > exception object.
> 
> I'm not quite sure what are you talking about.

Ok, an example then:

FXException is my generic base class for all exceptions. It has 
bindings for Python ie; a FXException is available there too.

I've registered an exception translator for FXException. If what you 
say below is correct, then it merely needs to be:

void FXException_translator(const FXException &e)
{
    PyErr_SetObject(PyExc_RuntimeError, python::object(e));
}

... and all should be good.

If so, then my thanks again. This makes error reporting in python 
much more useful indeed as my exception class provides a stack 
backtrace plus line and file info of the C++ side.

Cheers,
Niall





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