Q: Are there any preparation materials I can take into account?
A: http://nbviewer.jupyter.org/gist/rpmuller/5920182, https://www.codecademy.com/tracks/python, or you can have a look at the materials from previous years: MLHEP-2015 (github), MLHEP-2016 (github), MLHEP-2017 (github).
Q: Is there any financial support available for some of the participants?
A: Yes, a limited support is available, thanks to our sponsors. Please provide as much details as possible about your case in 'comments' field of the registration form. Include why you need the support, how you will benefit from the school. Also please send us a reference letter (see ‘Support’ email address on the left).