I took copies of about 10 or 12 pages from that site, when trying to figure out what a python script was doing and why it did not work for me.
(called something like "Avisynth Trackin", or similar, track moving objects frame by frame).
With help of the XinYmins thing, was quickly able to figure out that it was because I had Phython 3 installed, and Trackin thing required v2.???.
(I got it workin OK, IIRC, Print works different for v2.0 and v3.0, Function(v3) instead of Subroutine, I think)
Handy to have if you just want to get at something quick.
Worst part for me learning C was figuring out where all of them there damn Semi Colons (';') went, seemed like you just liberally scattered
them wherever there seemed to be too much white space.
(K&R for me too, I remember studying for days, the Bachus Naur notation [or something like that] at the back of the book).
EDIT: Backus–Naur,
https://en.wikipedia.org/wiki/Backus%E2%80%93Naur_form
EDIT: Search Google C interpreter for do it yourself, interactive play time:-
https://www.google.co.uk/search?site...k1.6UXaWXRe-F0