Easy Installation of Python 3.12 on Ubuntu 22.04

Introduction:

Python is a powerful and popular programming language known for its simplicity, readability, and wide range of applications. This tutorial provides two straightforward methods for installing Python 3.12 on Ubuntu 22.04.

Installation Steps:

Method 1: Installing Python 3.12 with APT

1. System Update:

sudo apt update && sudo apt upgrade -y

2. Add PPA Repository:

sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt update

3. Install Python 3.12:

sudo apt install python3.12

4. Verify Installation:

python3.12 --version

Method 2: Installing Python 3.12 from Source

Note: This method is recommended for more experienced users.

1. Install Prerequisites:

sudo apt install build-essential zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev libssl-dev libreadline-dev libffi-dev libsqlite3-dev wget libbz2-dev

2. Download Source Code:

Download the latest Python version from https://www.python.org/downloads/.

3. Extract and Configure:

tar -xf Python-3.12.0.tgz
cd Python-3.12.0
./configure --enable-optimizations

4. Compile and Install:

make -j $(nproc)
sudo make altinstall

5. Verify Installation:

python3.12 --version

Installing Python Modules:

To install Python libraries (like numpy), use pip:

pip3.12 install numpy

Setting Python 3.12 as Default:

sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.10 1
sudo update-alternatives --install /usr/bin/python3 python3 /usr/local/bin/python3.12 2
sudo update-alternatives --config python3

Tips:

• In Method 1, Python 3.12 will automatically update.
• In Method 2, you’ll need to repeat the compilation and installation steps to update Python.
• For more information, refer to the official Python documentation: https://www.python.org/downloads/