... Previous Changeset . ... preparation for shortcuts in handlers (+ event=None somewhere in def) . ... def start(self , event=None ): €а . ... def stop(self , event=None ): €а . ... def next_step(self , event=None ): €а . ... self.draw_cell(automata.next_step()) €а . ... def save_file(self , event=None ): €а . ... def open_file(self , event=None ): €а . ... def new_file(self , event=None ): €а . ... def show_help_window(self , event=None ): €а . ... def hide_help_window(self , event=None ): €а . ...