I really dislike that you use screenshots of code, it makes copy-pasting impossible. There are ways to produce pdfs with colored, copyable source code (like using RST for redaction then rst2pdf for production, but I'm not sure it'll be the easiest for you).
I will change that now. Thanks for the advice, it did not occur to me that copy-pasting was important because I always prefer typing the whole code in order to practice and learn better.
