Ctrl-C does not interrupt shell during calls to preCICE

[MakisH]

I have noticed that, when e.g. inside precice.initialize(), pressing Ctrl+C does not interrupt the program. This I have only observed in Python and it seems to be a common issue with subprocesses / threads in Python.

You can reproduce this problem by running e.g. one one Python solverdummy participant, without starting a second one, and trying to kill it. I will simply ignore the keyboard input.

Some starting points:

• Cannot kill Python script with Ctrl-C
• python SIGINT not terminating calling shell