Maybe it's just me but I would recommend that he start with a classic CS book and work back to python and the like. Something like "The C Programming Language". I learned more with a book like this than any modern ruby or python book. Plus the world will need C programmers for a long time. Knowing C is one of those skills that will be useful anywhere. If you know C you arguably can learn C++, C# or Java quickly and easily. And you'll have a respectable fundamental understanding of how computers work. Though I do agree that this is specific to this case. If it were a kid in high school in Northern California... it may be a different story.

The C Programming Language, Second Edition by Brian W. Kernighan and Dennis M. Ritchie

Turkish: C Programlama Dili, Sistem Yayincilik, ISBN 975322312-9.

http://netlib.bell-labs.com/cm/cs/cbook/