python时间范围验证器

Question

我在DB中有2个参数：启动和停止。它们的值可以是例如07：00-23：00或23：00-07：00（07之后开始，23之后停止或23之后开始，07之后停止）

在那个时候，状态必须是0或1，假设它是LED

如何创建不会在午夜前后混乱的统一逻辑控制器？

我的执行不力（无法正常工作）如下。实际上，我已经尝试了许多变体，但仍然以目前的状态结束。

            if curtime >= vv_time_trig1 and curtime <= vv_time_trig2:
                logger.info("turning socket on")
                logger.debug("#1")

                #check current status
                #if current is 0
                #turn socket on
                if vvstatus == 0:
                    logger.debug("current status off, turning socket on")
                    GPIO.output(25, GPIO.HIGH)

                #check current status
                #if current is already 1
                #do nothing
                elif vvstatus == 1:
                    logger.info("skiping. already on")

                #unhandeled current status
                else:
                    logger.critical("unhandeled vvstatus!")
                    logger.critical("turning socket off")
                    GPIO.output(25, GPIO.LOW)

            #if current time is before start
            #turn off
            elif curtime <= vv_time_trig1 and curtime >= vv_time_trig2:
                logger.info("turning socket off")
                logger.debug("#2")

                #check current status
                #if current is 1
                #turn socket off
                if vvstatus == 1:
                    logger.debug("current status on, turning socket off")
                    GPIO.output(25, GPIO.LOW)

                #check current status
                #if current is already 0
                #do nothing
                elif vvstatus == 0:
                    logger.info("skiping. already off")

                #unhandeled current status
                else:
                    logger.critical("unhandeled vvstatus!")
                    logger.critical("turning socket off")
                    GPIO.output(25, GPIO.LOW)

            #if current time is after stop
            #turn off
            elif curtime >= vv_time_trig2:
                logger.info("turning socket off")
                logger.debug("#3")

                #check current status
                #if current is 1
                #turn socket off
                if vvstatus == 1:
                    logger.debug("current status: %s, turning socket off", vvstatus)
                    GPIO.output(25, GPIO.LOW)

                #check current status
                #if current is already 0
                #do nothing
                elif vvstatus == 0:
                    logger.info("skiping. already on")

                #unhandeled current status
                else:
                    logger.critical("unhandeled vvstatus!")
                    logger.critical("turning socket off")
                    GPIO.output(25, GPIO.LOW)

            #if current time is before stop
            #turn off
            elif curtime <= vv_time_trig2 and curtime <= vv_time_trig1:
                logger.info("turning socket on")
                logger.debug("#4")

                #check current status
                #if current is 0
                #turn socket on
                if vvstatus == 0:
                    logger.debug("current status off, turning socket on")
                    GPIO.output(25, GPIO.HIGH)

                #check current status
                #if current is already 1
                #do nothing
                elif vvstatus == 1:
                    logger.info("skiping. already on")

                #unhandeled current status
                else:
                    logger.critical("unhandeled vvstatus!")
                    logger.critical("turning socket off")
                    GPIO.output(25, GPIO.LOW)

更新后的版本。确定相对于终点的当前位置。如果午夜过去，则将结束日期设置为明天

            n1 = datetime.now()
            startTrig = datetime(n1.year, n1.month, n1.day, 23, 00, 0)
            logger.debug("start: %s",startTrig)

            n = datetime.now()
            endTrig = datetime(n.year, n.month, n.day, 07, 00, 0)
            logger.debug("end: %s",endTrig)

            if startTrig > endTrig:
                logger.debug("start > stop")
                endTrig += timedelta(days=1)
                logger.debug("new stop trig: %s",endTrig)


            if datetime.now() < endTrig:

                if curStatus == 1:
                    logger.debug("socket %s already on. doing nothing.")

                elif curStatus == 0:
                    logger.debug("socket %s sould be on. flipping switch")
                    flipSocketStatus(bcmNo,bcmDir)

                else:
                    logger.critical("unhandeled socket %s current status %s",socName,curStatus)

                    if curStatus == 1:
                        logger.critical("shutting socket %s down",socName)
                        GPIO.output(bcmNo, GPIO.LOW)

                    elif curStatus == 0:
                        logger.warn("socket %s already off",socName)

                    else:
                        logger.critical("unhandeled current status for pin: %s",bcmNo)
                        logger.critical("forcing socket %s down",socName)
                        GPIO.output(bcmNo, GPIO.LOW)
            else:
                logger.critical("unhandeled start-stop rules")

Answer 1

有两种情况：当前时间在给定时间（顺时针）或外部（想象时钟圈）之间：

#!/usr/bin/env python
from datetime import datetime

def in_between(now, start, end):
    if start < end: # e.g., "07:00-23:00"
        return start <= now < end
    elif end < start: # e.g., "23:00-07:00"
        return start <= now or now < end
    else: # start == end
        return True # consider it 24 hour interval

now = datetime.now().time()
for date_range in ["07:00-23:00", "23:00-07:00"]:
    start, end = [datetime.strptime(s, "%H:%M").time()
                  for s in date_range.split("-")]
    not_ = '' if in_between(now, start, end) else 'not '
    print("{now:%H:%M} is {not_}in between {date_range}".format(**vars()))

输出量

02:26 is not in between 07:00-23:00
02:26 is in between 23:00-07:00