Download Python 3.12.0 source
First, setup Raspberry Pi OS on your microSD card.
Run this command to download the latest Python source code.
wget https://www.python.org/ftp/python/3.12.0/Python-3.12.0.tgz
Install the build tools
Run these to install the build tools.
sudo apt update
sudo apt install build-essential zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev
If you want, you can install git as well.
sudo apt install git
Configure, make and make install
Run these commands. The configure command may take several minutes depending on the Raspberry Pi.
tar -xzvf Python-3.12.0.tgz
cd Python-3.12.0/
./configure –enable-optimizations
sudo make altinstall
This will install Python at /usr/local/bin/python3.12. To test the version, run this:
/usr/local/bin/python3.12 -V
It will get this output:
Python 3.12.0
Make Python 3.12 the default version
When run python, you will still get the default 3.9.2.
/usr/bin/python3 -V
Python 3.9.2
To make the default version of Python 3.12.0, run this:
sudo rm /usr/bin/python
sudo ln -s /usr/local/bin/python3.12 /usr/bin/python
Test whether Python 3.12.0 is the default version:
python -VV
Python 3.12.0
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