install Raspbian

change login/password

enable SPI

install a Python 3.x version (with x>=5)

See this or this posts:

sudo apt-get install python3-dev libffi-dev libssl-dev
wget https://www.python.org/ftp/python/3.6.4/Python-3.6.4.tgz  
tar xvf Python-3.6.4.tgz
cd Python-3.6.4
./configure --enable-optimizations
make -j4
sudo make altinstall

This version of Python is required, because my program relies on the asyncio library.

Python Libraries

You will need the following libraries:

• spidev (for the SPI communication with the AVR micro-controller)
• RPi.GPIO