Re: Boost.Python and exceptions

From: p.i.frey_at_[hidden]
Date: 2001-07-18 03:35:13

Hi,

I do not know whether there is a goot reason for doing so, but we are 
also using a class library having exception classes that are not 
derived from std::exception. We cannot rewrite this library, and we 
need support for Boost.Python to pass these exceptions to Python.

Peter

--- In boost_at_y..., Ullrich Koethe <u.koethe_at_c...> wrote:
> Chris Emerson wrote:
> > 
> > I've wrapped a C++ library which throws exceptions which I'd like 
to be
> > visible from Python more sensibly.  The exceptions don't derive 
from
> > std::exception.
> > 
> 
> Is there any good reason not to derive from std::exception? I don't 
see
> any.
> 
> > It looks like all exception handling is done in
> > boost::python::handle_exception().  Perhaps module_builder could 
have an
> > optional function pointer argument to add (or replace) 
handle_exception()?
> > 
> 
> This could be done. However, to create corresponding Python 
exceptions,
> you must register new Python exception objects within the module. 
This
> is currently unsupported in Boost.Python.
> 
> > Or is there a better way of accomplishing this?
> > 
> 
> Derive from std::exception
> 
> Regards
> Ulli
> --