On Thu, 2009-04-23 at 22:59 -0700, Nathaniel Smith wrote:
> Okay, revise that... after a closer look at the internals manual, I
> realized that lists are VECSXP, not LISTSXP. Silly me, don't know how
> I could have mixed that up. Also numpy2ri.py got fixed at some point.
>
> So the only real bug is that newSEXP is still failing to trigger an
> exception, which should probably be looked at.
Ok. I will.
Thanks for the report.
L.
PS: always good to have the bug either in bitbucket's issue tracker, or
in SF's bug tracker.
> On Thu, Apr 23, 2009 at 10:15 PM, Nathaniel Smith <n...@pobox.com> wrote:
> > I just noticed that
> > import rpy2.rinterface as ri
> > s_int = ri.SexpVector([1], ri.INTSXP) # works
> > s_list = ri.SexpVector([s_int], ri.LISTSXP) # appears to work, but
> > the R object is NULL/Nil
> >
> > Two issues here:
> > 1) It looks like rinterface.c:newSEXP is trying to throw an exception
> > rather than silently pass a Nil sexp back out to Python, but somehow
> > no exception is being raised.
> > 2) It would be nice if we could create lists directly like this...
> > though a workaround is to use
> > ri.globalEnv.get("list")(*contents)
> >
> > For instance, the numpy support currently included in rpy2.robjects
> > attempts to create lists with ri.SexpVector like this.
> >
> > I don't have time to write a patch right now (and am not caught up to
> > tip anyway), but may get to it later if no-one beats me to it.
> >
> > Cheers,
> > -- Nathaniel
> >
>
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