template for using eel, python, vue3 and bootstrap together
Vue-mounted calls the vue method toPy_print, which sends the call with argument to python. Python executes it and sends back a return value.
Python executes fromPy_alert which is exposed in js but does not belong to vue. That method then calls a vue method. maybe this can be shortened in eel? In any case, its considered "anti-pattern" and should be avoided if possible. Since js->python calls can have a return, most things can be handled that way. If you need python to update js dynamically, then you have to use this anti-pattern.