Well, if you would like people to look into possible core issues, then it would
help using the latest released version (aka 2022.07). Especially since 2021.04
is from before the new-disp work being merged, so it is not completely unlikely
it functions better now.
> On 9 Sep 2022, at 20:44, Sean McAfee <eef...@gmail.com> wrote:
>
> I still see the same behavior. That is, if I do say spark.sql('select 1+1');
> twice, the first time prints an empty array, and the second produces the
> "instance has no attribute 'sql'" error message.
>
> I forgot to mention, this is on a somewhat old version of Raku, 2021.04. But
> then, Inline::Python seems to be mostly even older.
>
>
> On Fri, Sep 9, 2022 at 11:35 AM Elizabeth Mattijsen <l...@dijkmat.nl> wrote:
> To rule out any REPL artefacts, do you see the same thing if you put the code
> in a script and run the script?
>
> > On 9 Sep 2022, at 20:17, Sean McAfee <eef...@gmail.com> wrote:
> >
> > Hello--
> >
> > I recently started playing around with PySpark. It soon occurred to me
> > that it would be a lot more fun to work in Raku instead of Python, and I
> > recalled that it's supposed to be possible to get handles to Python objects
> > from Raku and call methods on them seamlessly, so I tried to make it
> > happen. I got pretty far, but now I'm stymied. Here are the steps I can
> > take in the Raku interpreter:
> >
> > > use Inline::Python
> > Nil
> > > my \python = Inline::Python.new
> > Inline::Python.new
> >
> > Self-explanatory.
> >
> > > python.run('from pyspark.sql import SparkSession')
> > (Any)
> >
> > No errors, that looks promising...
> >
> > > my \spark = python.run('SparkSession.builder.getOrCreate()', :eval)
> > ... spam from initialization of Spark session deleted...
> > Inline::Python::PythonObject.new(ptr =>
> > NativeCall::Types::Pointer.new(4461193984), python => Inline::Python.new)
> >
> > Now we're getting somewhere! (I had to source-dive to guess that I needed
> > that :eval; without it, an Any is returned.)
> >
> > > my \sql = spark.sql('select 1+1')
> > []
> >
> > Uh...what? I was expecting to get another Python object back, a DataFrame.
> > (I think; I'm much more familiar with the Scala interface to Spark.)
> > Instead I have an empty array.
> >
> > Even more puzzlingly, if I re-run that last statement, I get an error:
> > "instance has no attribute 'sql'". If I re-run the statement over and
> > over, the response alternates between an empty array and that error.
> >
> > Does anyone have any insight into what's going on?
> >
>
