在信号处理程序中使用变量-是否需要全局？

您可以将闭包用作从主脚本获取其状态的信号处理程序：

import signalimport sysimport timedef main_function():    data_for_signal_handler = 10    def signal_handler(*args):        print data_for_signal_handler        sys.exit()    signal.signal(signal.SIGINT, signal_handler) # Or whatever signal    while True:        data_for_signal_handler += 1        time.sleep(0.5)if __name__ == '__main__':    main_function()