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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