lot_manager/config.py

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import configparser
import subprocess
p = subprocess.Popen(['cat /home/pi/device_name'], shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, err = p.communicate()
# 设备名称,必须要有
device_name = out.decode('utf-8').strip()
# 读取配置
config = configparser.ConfigParser()
# 读取公共配置
config.read('conf/main/common.conf')
# 域名
broker = config.get("broker", "host")
# 端口这里必须是int类型
port = config.getint("broker", "port")
# 读取设备配置
config.read('conf/device/device.conf')
# 订阅的主题
subscribe_topic = config.get(device_name, "subscribe_topic")
# 发布的主题
publish_topic = config.get(device_name, "publish_topic")
# 用户
username = config.get(device_name, "username")
# 密码
password = config.get(device_name, "password")