Sorry I misunderstood before.
What you want to achieve is possible in two ways.
- Within Expyriment, by manually defining how to process control keys (e.g. ESC) in all wait functions you use:
def custom_process_control_keys(): expyriment.io.Keyboard.process_control_keys(quit_confirmed_function=convert_variables) # and then calling this explicitely as callback function in EVERY wait method in your code, e.g.: exp.keyboard.wait(callback_function=custom_process_control_keys, process_control_events=False)
- Independent of Expyriment, by registering an atexit function:
import atexit atexit.register(convert_variables)
Hope that helps!