ANN: New Book: Programming in Python 3

[Thomas Heller]

Mark Summerfield schrieb:
> Just a follow-up to say that the book has now been published in the
> U.S.
> It is now in stock at InformIT, and should reach other stores, e.g.,
> Amazon, in a week or so.
> 
> Also, the introduction, the first few pages of the first chapter, the
> whole of chapter 12 (regular expressions), and the index are now
> available for free download in a PDF from here:
> http://www.informit.com/store/product.aspx?isbn=0137129297

Question from a non-native english speaker: is this now valid english?

  "One of Python’s great strengths"
                ^
  "and also teaches Python’s functional programming features"
                          ^
  "The book’s approach is wholly practical"
           ^

Curious,
Thomas