1 解决方法： 如果使用的是pycharm 则在终端输入：pip install cv2 ，注意是Terminal状态下 如果是其他环境，window+r 输入cmd 然后 pip install cv2 人以鱼不如授人以渔：. No module named ‘cv2‘ 报错原因 环境下没有安装cv2库 类似的报错 都是缺少引号下的库 ## 2. 1 解决方法： 如果使用的是pycharm 则在终端输入：pip install cv2 ，注意是Terminal状态下 如果是其他环境，window+r 输入cmd 然后 pip install cv2 人以鱼不如授人以渔： Jul 23, 2025 · In this article we will see why it happens and how to fix it step by step. pyd file is in C:\Python27\Lib\site-packages I have attached a screen shot which shows the modules in Python27. When I run the code from command prompt it says ModuleNotFoundError: No module named 'cv2'. I have used pip install opencv-python. The cv2. How can I fix this? When I import cv2 at cmd it seems to be working (cmd screenshot) but when I used python at the visual studio 2019 it says "no module named cv2" visual studio screenshot. ModuleNotFoundError: No module named 'cv2' What confuses me most is that it seems I've successfully installed OpenCV when I enter pkg-config opencv --cflags in terminal: Jan 11, 2019 · If you are certain that you have installed CV2, but you run into "no module named cv2" when running Python, that means CV2 was installed to a different Python version from the one you are running. Or, one can do a headless installation pip install opencv-python-headless, which would work anywhere.

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