Connect PS4 Controller to Raspberry Pi and Python

Connect Playstation 4 DuelShock4 controller over Bluetooth to Raspberry Pi (or other Linux machine) and access its inputs from Python code.
SOFTWARE:
pyPS4Controller module is available on PyPi and GitHub
- Pypi: pypi.org/proje...
- GitHub: github.com/Art...
HARDWARE:
PS4 DualShock 4 Controller: ebay.us/PnXchi
For Raspberry Pi you can use any one of the following:
- Raspberry Pi 3 b: ebay.us/dfe2Nu
- Raspberry Pi 3 b+: ebay.us/m7bc5q
- Raspberry Pi 4 b: ebay.us/GLE3QE
All of those RPi models have built in Bluetooth.