The correct way to install opencv, import mirror source and update pip in pycharm: first go to the correct path and then enter python -m pip install --upgrade pip

the first method:

Import Tsinghua mirror source:

https://pypi.tuna.tsinghua.edu.cn/simple

The second method

Ctrl + R to enter cmd
to enter the command line

enter

python -m pip install --upgrade pip

Install opencv again

pip3 install opencv-python -i https://pypi.tuna.tsinghua.edu.cn/simple

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