FMU clash with IPython and PyFMI (JSON involved)

[anonymous]

Trying to load an FMU compiled by omc (OpenModelica's compiler) with PyFMI provoke a nasty crash under IPython.

Running

import pyfmi
pyfmi.load_fmu("path/to/fmu")

makes IPython crash with message

JSON object expected ',' or '}', got: "lineEnd":67,"colSta
Aborted (core dumped)

I tried both IPython 5.4 and 4.2, for Python 2.7.13 (Anaconda 64-bit) on Ubuntu 16.04.

An example FMU for reproducing the bug can be found here:
​https://trac.fmi-standard.org/browser/branches/public/Test_FMUs/FMI_2.0/...

This seems to be specific to OpenModelica as a JModelica compiled FMU (​https://trac.fmi-standard.org/browser/branches/public/Test_FMUs/FMI_2.0/...) does not trigger the error.

Both FMUs pass the FMU compliance check.

Do you have any idea about the problem's root and how to solve it?

I already experienced segfaults with older version of OpenModelica, as mentionned here: ​http://www.jmodelica.org/27816. They were however rare enough to be only a nuisance, not a show stopper.

[tknodt@…]

I guess without having the JSON and/ or the model, this cannot be root-caused, right?