http://www.france-ioi.org/
http://histo.ucsf.edu/BMS270/diveintopython3-r802.pdf
https://eu.udacity.com/course/intro-to-computer-science--cs101
https://www.fun-mooc.fr/courses/course-v1:UCA+107001+session02/about
https://inforef.be/swi/download/apprendre_python3_5.pdf
https://realpython.com/