Dean writes:

I'm 13, I live in the US, and I just finished reading your excellent book "Python for Kids". After I finished the book I had two questions. First I was curious if it is possible to put a python game on a website to play? The other question I had was what was the hardest project you have ever worked on, how long did it take you, and what language was it in?

There are a few implementations of Python that will work inside the browser, but as far as I know they don't support all of Python's features (such as the tkinter module, or PyGame, for example). So it would be rather difficult to write a game that could be played on a website (in my opinion). If that's something you want to do, you'd be better off learning Javascript (the standard programming language used in all browsers). If you google for "javascript and html5 games development", you'll find a lot of information out there. Luckily, once you've learned one programming language, it's a lot easier to learn the next.

In terms of hardest project, that's a difficult question to answer. I've worked on projects which were hard because the amount of code in the application was huge, and because there were a lot of "moving parts" - lots of communication between different systems. In terms of complicated systems, I recall one project (which I spent about 18 months on with a team of 8 or 9 people) where I had to write the code for very complicated graphical reports -- that was hard because I had to remember mathematics I learned years before (the programming language in that case was Java and some Python as well).

Hope that helps.