Keep in mind that scripting languages are often mentioned in job postings as secondary skills. There are TONS of "Java/C++ developer, would be nice if you knew some Python or Ruby" which get counted as "Python jobs" when you do something like this.
And if you look at Rails vs Django, while some say Ruby is dying, the job market is definitely in Ruby's favor in the webspace. The thing is even posting this generates more hype for Python, even though it was researched rather unscientifically. It's marketing.
