I'm not sure how much Boost.Python is used with Python 3.
Haoyu and Troy have done all the fundamental work in the
2009 GSOC project, but the Python 3 support isn't routinely
exercised as far as I know.
We need a volunteer to establish and maintain routine Python 3
testing, and possibly fix bugs like you are observing.
(I still don't have any interest in Python 3 myself since my primary
project depends on a myriad of tools that don't support Python 3.)
Ralf
----- Original Message ----
> From: Neal Becker <ndbeck...@gmail.com>
> To: cplusplus-sig@python.org
> Sent: Wed, October 20, 2010 2:17:46 PM
> Subject: Re: [C++-sig] boost::python + python3.1.2 throw
>
> Neal Becker wrote:
>
> > Neal Becker wrote:
> >
> >> Has behavior of c++ exception changed with boost::python + python3?
> >>
> >> I used to simply use throw from c++. Now I get:
> >> SystemError: initialization of ldpc_45 raised unreported exception
> >>
> >> I believe this exception was really:
> >> if (!fp)
> >> throw std::runtime_error ((boost::format ("fopen %1% failed") %
> >> name).str());
> >>
> >> which would have produced a good error message under python2.6.
> >
> > I think this difference in behavior is for an exception thrown
> > during module initialization?
> >
> > A c++ exception thrown after initialization seems to behave as before.
>
> Just confirmed, under python2.6 I get my nice error message:
> Traceback (most recent call last):
> File "test_btr_equal_coded.py", line 570, in <module>
> run (sys.argv[1:])
> File "test_btr_equal_coded.py", line 148, in run
> from ldpc_45 import encoder, decoder, N, K
> RuntimeError: fopen H23_64800_7-50_3-50_3.dat failed
>
> But on python3.1.2 I just get
> SystemError: initialization of ldpc_45 raised unreported exception
>
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