3.3.3 Python3.9 - Tomato6966/Debian-Cheat-Sheet-Setup GitHub Wiki

Installing any other Python-Version, here 3.9.1 It will take at least 5 Minutes, just wait...

wget https://www.python.org/ftp/python/3.9.1/Python-3.9.1.tar.xz
tar -xf Python-3.9.1.tar.xz
cd Python-3.9.1
./configure --enable-optimizations
make -j 4
sudo make altinstall
python3.9 --version