As a Python novice, sometimes certain packages are clearly installed
pip3 install numpy
pip3 install opencv-python
and many more
But still an error:
ModuleNotFoundError: No module named
solution:
1. Global installation
sudo -H python3 -m pip install opencv-python
Resource mirror station:
The new version of ubuntu requires the use of https source, so be careful.
Tsinghua: https://pypi.tuna.tsinghua.edu.cn/simple
Alibaba Cloud: http://mirrors.aliyun.com/pypi/simple/
University of Science and Technology of China https://pypi.mirrors.ustc.edu.cn/simple/
Huazhong University of Science and Technology: http://pypi.hustunique.com/
Shandong University of Technology: http://pypi.sdutlinux.org/
Douban: http://pypi.douban.com/simple/
sudo -H python3 -m pip install -i https://mirrors.aliyun.com/pypi/simple opencv-python
2 How to configure environment variables
export PYTHONPATH=/Users/ibeeger/Documents/pyproject/tensorflow:$PYTHONPATH