Install Python 3.11 on Ubuntu

Add repository

sudo add-apt-repository ppa:deadsnakes/ppa

Update the package list

sudo apt update

Install Python 3.11

sudo apt install python3.11

Install pip

curl -sS https://bootstrap.pypa.io/get-pip.py | python3.11

Set Python 3.11 as default

sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.11 1
python --version

Install support package

sudo apt install python3.11-dev python3.11-venv python3.11-distutils python3.11-gdbm python3.11-tk python3.11-lib2to3

• When create virtual environment, use python3.11 -m venv <venv_name> instead of python -m venv <venv_name>.
• On using pip, use python3.11 -m pip <command> instead of python -m pip <command>.