这个时间戳来自哪里? (LED优先信号)

时间:2018-06-12 06:25:21

标签: python-3.x tuples gpiozero

我有这个代码并且它运行两次罚款,而在第三次调用时我得到一个错误,好像我会通过Timestamp。我只传递过Tuple或无。

from pprint import pprint
from gpiozero import RGBLED
def signal(pri, newcolor):
  signal.priority[pri] = newcolor
  pprint(signal.priority)
  try: signal.led.color = next(color for color in signal.priority if color is not None)
  except StopIteration: signal.led.color = (0,0,0)
signal.led = RGBLED(red=11, green=9, blue=10)
signal.priority = 2*[None]

输出正在跟随

[None, (0, 1, 0)] 
[None, (0, 0, 1)]
[None, (1, 1, 0)]

Traceback (most recent call last):

File "/home/pi/zrcrasp.py", line 137, in <module>
    signal(1, (1,1,0))
File "/home/pi/zrcrasp.py", line 10, in signal
    try: signal.led.color = next(color for color in signal.priority if color is not None)
TypeError: 'Timestamp' object is not callable

背景

程序的各个部分使用函数来发出任何类型的错误信号,但如果高优先级短红色闪烁结束,则优先级较低的绿色应继续。如果没有较低优先级 - None,那么led将被关闭(这是except语句)

最低的索引是最高优先级。

0 个答案:

没有答案