Using different Python versions

The installation instructions assume that a recent enough version of Python can be installed using APT. As sometimes this is not the case, and updating the whole operating system is not always an option, Python can usually be built from source to get a more recent version in addition to the system installation of Python.

Compiling Python from source

First, some additional build dependencies need to be installed:

sudo apt install make build-essential libssl-dev zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm libncursesw5-dev xz-utils tk-dev libxml2-dev libxmlsec1-dev libffi-dev liblzma-dev

The source of the desired Python version can then be downloaded from the Python download page, e.g. by using wget:



When compiling from source, it is usually recommended to use the latest Python version supported by Kadi4Mat, which currently corresponds to version 3.10.

Afterwards, the source package can be extracted and built using make. Using the -j flag of make speeds up compilation by making use of <n> multiple jobs in parallel, which usually should correspond to the number of cores available:

tar -xf Python-3.x.y.tgz
cd Python-3.x.y
./configure --enable-optimizations
make -j <n>

Note that this may take a bit. Once built, in order to install the compiled binary as an alternative to the one already installed on the system, the altinstall target can be used:


Make sure to actually use the altinstall target instead of install, as the latter may have unintended side effects.

sudo make altinstall

This will install the Python binary as python3.x, depending on the chosen version, which can be verified by running:

python3.x --version