“ OSError：[Errno 24]打开的文件太多：”和来自aiocoap context.

Question

您好，我正在研究树莓派PI，它应该从连接到该PI的传感器连续发送数据，所以这是我的脚本：

import logging

import asyncio

from grovepi import*

import time

import json

from aiocoap import *

logging.basicConfig(level=logging.INFO)

def createMsg( file,value ) :

    f= open(file + "Config.json")

    data = json.load(f)

    f.close()

    data["timestamp"] = str(round(time.time(), 3))

    data["value"] = value

    return json.dumps( data )

async def main():

    #analog

    soundSensorPort=0

    lightSensorPort=1

    #digital

    motionSensorPort=2

    tempSensorPort=2

    ultrasonicSensorPort=5

    pinMode(tempSensorPort, "INPUT")

    while True:

        context = await Context.create_client_context()

        await asyncio.sleep(2)

        [ tempSensorValue, humiditySensorValue ]  = dht(tempSensorPort, 0)

        tempMsg = createMsg( "temperatureSensor", tempSensorValue)

        humidityMsg = createMsg( "humiditySensor", humiditySensorValue)

        payloadTemp = tempMsg.encode('utf-8')

        payloadHumidity = humidityMsg.encode('utf-8')

        requestTemp = Message(code=PUT, payload=payloadTemp)

        requestHumidity = Message(code=PUT, payload=payloadHumidity)

        requestTemp.opt.uri_host = '129.6.60.38'

        requestHumidity.opt.uri_host = '129.6.60.38'

        requestTemp.opt.uri_path = ("other", "sensors","temperature")

        requestHumidity.opt.uri_path = ("other", "sensors","humidity")

        responseTemp = await context.request(requestTemp).response

        responseHumidity = await context.request(requestHumidity).response

        print('Result: %s\n%r'%(responseTemp.code, responseTemp.payload))

        print('Result: %s\n%r'%(responseHumidity.code, responseHumidity.payload))

if __name__ == "__main__":

    asyncio.get_event_loop().run_until_complete(main())

这真的很奇怪，因为我只是在读取文件并将其加载到“ f”之后关闭了文件，所以如果有人有想法，这将非常有帮助