How do I upgrade my python installation, and pip?

On my Ubuntu server, Python 3.8 and 2-something is installed.

I want to upgrade to Python 3.10, and I installed it from a ppa. But 3.8 is still installed, and pip --version shows pip 20.0.2 from /usr/lib/python3/dist-packages/pip (python 3.8)

I tried running a script with this command: python3.10 myscript.py but this fails because this script is using the websockets package. If I run pip install websockets it says that it is already installed. But it isn't installed for Python 3.10, only 3.8.

So in short: How do I upgrade to Python and pip to version 3.10?

EDIT: these are the commands I used to upgrade Python to 3.10

sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt-get update
sudo apt-get install python3.10

There is two options

• Changing ubuntu's python3:

  sudo mv /usr/bin/python3 /usr/bin/python3_backup & sudo ln -s /usr/bin/python3.10 /usr/bin/python3

• Creating a virtualenv and use that env python3.10 -m venv venv_folder source venv_folder/bin/activate pip .. python ..

After finished your job with this env, you can just type deactivate and venv will close.

Second method is a workaround solution.