On Sep 15, 4:25 pm, Robert Bradshaw <[EMAIL PROTECTED]>
wrote:
> On Sep 15, 2008, at 4:22 PM, Simon King wrote:
>
>
>
>
>
> > Dear Robert,
>
> > simply for testing, i raise an error as soon as the init-method of my
> > class is called. So, for the moment the code looks like this:
> > class COHO:
> > """
> > Docstring
> > """
> > def __init__(self, *args, **kwds):
> > raise ValueError, "fooBAR..."
> > # followed by a lots of more code
>
> > And now the reason why i am puzzled.
> > If i write a .pyx file with the above content, then everything is fine
> > (i.e., an error is raised, but no crash occurs). But with my module
> > (although the relevant (?) part of it has exactly the above form), it
> > fails:
> > sage: from cohomology import *
> > sage: H=COHO()
> > /home/king/SAGE/devel/sage-3.1.1/local/bin/sage-sage: line 216: 27343
> > Speicherzugriffsfehler sage-ipython "$@" -c "$SAGE_STARTUP_COMMAND;"
>
> > Note that my class also has a __del__ method.
> > Could that be the reason for the "Speicherzugriffsfehler" (what is it
> > in english?)?
> > I mean, would __del__ be called if __init__ fails?
>
> No idea what Speicherzugriffsfehler means (never heard of that
> before) but __del__ might be called on a failing __init__.
invalid memory access :)
> For Cython, you might want to use __cinit__ and __dealloc__ (which
> are guaranteed to be called exactly once in pairs).
>
> - Robert
Cheers,
Michael
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