from errortext import error_text

def do_something(action_to_perform):
    if action_to_perform == "walk":
        print("walking")
    elif action_to_perform == "sleep":
        raise ValueError("must be tired in order to sleep")
    elif action_to_perform == "run":
        raise NotImplementedError("run")
    else:
        assert False

try:
    do_something(action)
    print(f"Success: done with {action}")
except Exception as error:
    print(f"Error: cannot {action}: {str(error)}")

print(f"Error with error_text: cannot {action}: {error_text(error)}")