Just bought the book, congrats!

I've written about using Sphinx to write technical books, you may find it useful: http://pedrokroger.net/2012/10/using-sphinx-to-write-books/

I see you used Pages to write the book. AFAIK Pages can export to ePub automatically (but I don't know if the result is any good). Maybe you could consider to export the ePub and distribute it with the PDF even if the ePub is a "beta" version. I think it could be useful for a lot of people.

I've perfected getting Python looking good in those formats :) (Or at least spent a year doing so).

But yes, there are a lot of poorly formatted ebooks, which is especially problematic for Python code.

I've already reached out to Danny via other mechanisms, so perhaps there will be a properly formatted Amazon version...

Another vote for mobi/epub, even if the code blocks are unreadable.

I understand the aversion to negative reviews. Maybe you can offer this with a disclaimer for those who bought the PDF.

I just bought the PDF. But since I plan to read it on my iPhone, an ePub version that looks good would be a great.

(Reading an A4 PDF on an iPhone isn't really comfortable.)

Purchased. But agreed that a epub version to read on my kobo would be awesome !