[Swig-user] Exit SWIG-wrapped C/C++ routine without killing IPython kernel

[Will B. <wb...@mi...>]

Hello,

I am working on the OpenMOC code project which combines highly optimized
algorithms written in C/C++ which are wrapped and exposed to Python using
SWIG. Although some of our users write Python scripts to run simulations
with OpenMOC, many are now beginning to increasingly use IPython Notebooks
for a more interactive simulation experience.

One issue we have run into with IPython Notebook is that some of our C++
routines print a message and call the exit(1) to terminate execution if a
error condition is reached. This seems to work fine for typical Python
scripting, but unfortunately kills an IPython Notebook kernel.

Instead, we would like to kill execution if an error condition is met, but
allow the IPython Notebook kernel to continue running so the user may
adjust their simulation parameters to correct the issue without re-opening
the Notebook.

Is there any way to terminate execution of wrapped C/C++ routines without
killing IPython Notebook?

Thank you,

--
Will Boyd
Nuclear Science & Engineering
Massachusetts Institute of Technology
Email: wb...@mi...
Cell: 423.413.8469