dear Richard!
thank for your kind reply.
i started to use coderunner in this semester, honestly, i have only a vague understanding of the system, but i managed to set a few questions, by modifying a very simple example found here or elsewhere on the net.
i am very enjoying setting the through the coderunner.
it is the first issue that i am unable to solve.
the scenario is the following:
type octave_function, symbolic for octave and sympy for python is installed
when i define the answer involving symbolic computation (not a real problem):
pkg load symbolic;
sympref('quiet',1);
syms f x;
f(x)=x^2;
disp(diff(f,x));
and i save this draft version, (w/ validate on save checked), then i see the correct result
(computed by octave) with the aforementioned 'run error' and a kind of python prompt.
i attached the screenshot and the xml.
(i suspect some communication error between python2(numpy) and octave(symbolic), that is unrelated
to the coderunner, but currently no sympy under python3 on the server, so i cannot test it.)
best wishes, Csaba