How to build Python virtualenv with packages provided by 'python3.withPackages'?

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Setting PYTHONHOME to Python environment created by python310.withPackages helps.

For example, following works now:

[nix-shell:~]$ source venv/bin/activate

[nix-shell:~]$ export PYTHONHOME=/nix/store/xv1vlbkpn26bg09yx5sm1ls9nkn3s8v4-python3-3.10.9-env

[nix-shell:~]$ python -c "import numpy; print(numpy.version.full_version)"
1.23.3
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