python - 无法从 'Beaglebone_Black_Driver' 导入名称 'Adafruit_DHT'

Question

我在 Raspberrypi 4B 4Gb 上运行最新的树莓派操作系统“Linux raspberrypi 5.4.51-v7l+ #1327 SMP Thu Jul 23 11:04:39 BST 2020 armv7l GNU/Linux”。
我已经安装了 Python3sudo apt-get install python3-dev python3-pip更新了 setuptools、wheel 和 pipsudo python3 -m pip install --upgrade pip setuptools wheel并安装了 Adafruit_DHT 模块sudo pip3 install Adafruit_DHT之后，我将 DHT22 连接到 gpio4 上的 rpi 并创建了以下 python 脚本:

import Adafruit_DHT
import time
from datetime import datetime

DHT_SENSOR = Adafruit_DHT.DHT22
DHT_PIN = 4
PROBE_NAME = "PI4"

humidity, temperature = Adafruit_DHT.read_retry(DHT_SENSOR, DHT_PIN)

if humidity is not None and temperature is not None:
    print("{2} - T={0:0.1f} H={1:0.1f}".format(temperature, humidity, datetime.now()))
else:
    print("Failed to retrieve data from humidity sensor")

比我运行它 sudo python3 temp.py我收到以下错误

Traceback (most recent call last):
  File "temp.py", line 11, in <module>
    humidity, temperature = Adafruit_DHT.read_retry(DHT_SENSOR, DHT_PIN)
  File "/usr/local/lib/python3.7/dist-packages/Adafruit_DHT/common.py", line 94, in read_retry
    humidity, temperature = read(sensor, pin, platform)
  File "/usr/local/lib/python3.7/dist-packages/Adafruit_DHT/common.py", line 80, in read
    platform = get_platform()
  File "/usr/local/lib/python3.7/dist-packages/Adafruit_DHT/common.py", line 60, in get_platform
    from . import Beaglebone_Black
  File "/usr/local/lib/python3.7/dist-packages/Adafruit_DHT/Beaglebone_Black.py", line 24, in <module>
    from . import Beaglebone_Black_Driver as driver
ImportError: cannot import name 'Beaglebone_Black_Driver' from 'Adafruit_DHT' (/usr/local/lib/python3.7/dist-packages/Adafruit_DHT/__init__.py)

知道如何让它工作吗？
我在树莓派零 w 上完成了完全相同的步骤，它开箱即用

Answer 1

在“/usr/local/lib/python3.7/dist-packages/Adafruit_DHT/platform_detect.py”中，
您可以在 elif 阶梯的第 112 行添加以下内容，因此它应该可以解决该问题。

elif match.group(1) == 'BCM2711':
    return 3

由于最近的 raspbian 升级，/proc/cpuinfo 中的硬件名称似乎已更改。