If BornAgain GUI or a script crashes, re-run under gdb.
To debug a Python script, run
gdb --args /usr/bin/python3 <script>
where the path /usr/bin/python3 must be adapted to point
to a Python executable that is not installed via pyenv.
Also consider python3-dbg (from Debian package of same name).
If Python is installed via Pyenv, then the command python
typically refers to a wrapper script <pyenv_path>/shims/python.
In this case, run
gdb -ex r --args bash python <script>
or
gdb `pyenv which python`