I always liked how this automatically hooks into the python installation via pip, but preferred another text format. Hm. So if you want to permanently replace python's crash message, you could put a file `sitecustomize.py` into your python path, with these contents for example:

    # in site-packages/sitecustomize.py:
    print('hello!')
    import sys; sys.excepthook = lambda a,b,c: print('<bomb emoji>')
    # or also:
    import stackprinter
    stackprinter.set_excepthook(style='darkbg')

(you can find the path by `python -c "import site; print(site.PREFIXES)" `)

It felt bit much to do that automatically on installation, but maybe it would be a good option to have