pip install -r requirements.txt
python3 -m pip install Pillow
https://projects.raspberrypi.org/en/projects/getting-started-with-picamera/3
pip install opencv-python
http://raspberry.io/projects/view/reading-and-writing-from-gpio-ports-from-python/
https://gist.github.com/joelongstreet/1a2b63f236f0cea92b18
sudo pip install --upgrade RPi.GPIO
I want to go forming a community of reusable code in various programming languages, any contribution is useful, to continue educating myself.