树莓派安装了opencv但运行某个程序时，显示没有名为cv2的库
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[待解决问题]
想问该怎么解决这个错误，下面是运行的报错
pi:~/darkflow-master $ sudo python3 predict.py
Traceback (most recent call last):
File "predict.py", line 4, in <module>
from darkflow.net.build import TFNet
File "/home/pi/darkflow-master/darkflow/net/build.py", line 3, in <module>
from . import help
File "/home/pi/darkflow-master/darkflow/net/help.py", line 9, in <module>
import cv2
ModuleNotFoundError: No module named 'cv2'
所有回答(1)
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安装下这个库试试：
pip install opencv-python
这个是重新安装opencv吗，但我应该有opecv了，版本是4.3.0
