Install Python on Ubuntu 22.04

Rather than Default Python 3.10.6, install another Python version:

1. install prerequisite

sudo apt update -y
sudo apt upgrade -y
sudo apt install -y build-essential zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev libssl-dev libsqlite3-dev libreadline-dev libffi-dev curl libbz2-dev -y

2. prepare installer

cd ~/Downloads
curl -O https://www.python.org/ftp/python/3.8.9/Python-3.8.9.tar.xz
tar -xf Python-3.8.9.tar.xz
cd Python-3.8.9

3. configure the python build

./configure --enable-optimizations

4. compile and install python

sudo make -j $(nproc)
sudo make altinstall

5. If it is successful, you can check the version

python3.8 --version

6.Set the newly installed Python version

sudo update-alternatives --install /usr/bin/python3.8.9 python3.8.9 /usr/local/bin/python3.8 1

7. update pip

python3.8.9 -m ensurepip --default-pip
python3.8.9 -m pip install --upgrade pip

8. If you want to remove it

sudo rm /usr/local/bin/python3.8
sudo rm /usr/local/bin/pip3.8
sudo rm -rf /usr/local/lib/python3.8
sudo update-alternatives --remove python /usr/local/bin/python3.8