Issue of module not found in Python 3.10
After upgrading python from Python 3.8 to 3.10, modules look installed in virtual environment previously, but cannot import. It will report e.g. module not found numpy, module not found pandas
Try uninstall install version and install again like
pip install numpy
pip install XXXX
Still same error when e.g. import numpy
Solution:
pip uninstall numpy
python -m pip install --user --upgrade numpy