As someone who has been learning Django/Python for 4 months, I very much appreciate both the getting started with Django site and the book 2 Scoops of Django that just came out. Would have saved me weeks of time if I had access to these 4 months ago. It's coincidence that they came out within a few days of each other (and a few days after Django 1.5 release candidate came out).
There's even greater interest in Ruby on Rails, the leading web development framework for Ruby.
Pinterest, Disqus, Instagram, PBS site, Washington Post site, etc. etc. are all Django projects. It's definitely worth learning -- the community is helpful and in large numbers, the framework is quite 'complete' -- there are lots of plugins available, it's fairly secure... and it's a pleasure to work with. :)