import cv2;
Python运行过程中报错No module named ‘cv2’
Traceback (most recent call last):
File "/Users/congjam/PycharmProjects/Jam/Test.py", line 1, in <module>
import cv2;
ModuleNotFoundError: No module named 'cv2'
原因:未安装opencv-python库
命令行模式安装:pip3 install opencv-python
JamSonsMacBook-Pro:~ jamson$ pip3 install opencv-python
Collecting opencv-python
Downloading opencv_python-4.2.0.32-cp37-cp37m-macosx_10_9_x86_64.whl (47.9 MB)
|▊ | 1.0 MB 22 kB/s eta 0:34:31
如果在PyCharm中,安装方式如下:

搜索opencv-python,点击【Install Package】
安装完成的时候,会提示"Package ‘opencv-python’ installed successfully"
本文详细介绍了在Python环境中遇到No module named 'cv2'错误时的解决方案,包括如何通过命令行使用pip3安装opencv-python库,以及在PyCharm中安装该库的具体步骤。
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