Why /usr/lib/python3.10/site-packages not in sys.path?

Question

I use the following code to install python3.10 in Ubuntu18.04.

apt-get update
apt-get install -y software-properties-common
add-apt-repository ppa:deadsnakes/ppa
apt-get update
apt-get install -y python3.10 python3.10-distutils

And then run python3.10 -c 'import sys; print(sys.path)' python3.10 -c 'import sys; print(sys.path)' , I got:

['', '/usr/lib/python310.zip', '/usr/lib/python3.10', '/usr/lib/python3.10/lib-dynload', '/usr/local/lib/python3.10/dist-packages', '/usr/lib/python3/dist-packages']

But if run python3.10 get-pip.py --disable-pip-version-check to install pip, pip would be in /usr/lib/python3.10/site-packages .

Answer 1

In debian/ubuntu, python packages would be installed in dist-packages.

/usr/lib/python[x].[y]/site-packages should be not exists.

Use python3.10 get-pip.py --user can solve this question.