cv2 安装成功后无法导入

Question

I have a single .py file with nothing in it except import cv2 . When I run: pip install opencv-python , it tells me that requirements are already satisfied but when I run it, it tells me there is "No module named cv2"

I'm using VSCode with Python 3.9.1

How could I solve this issue??

Answer 1

if you are using python 3 you should use

pip3 install package <name>

or pip install package as python 2X

you can try some different method here : https://java2blog.com/modulenotfounderror-no-module-named-cv2-python/

Answer 2

Your pip command may be connected to the python 3.7 because it works well when you change python interpreter.

1. Change your python interpreter to you want to use (3.9)
2. Check the interpreter is set correctly.

python -V

3. Install OpenCV

python -m pip install opencv-python