[nl]

2) "A little known fact about Google, for instance, is that its investment in Python (one of the three languages the company uses for its work)" - Gonna go out on a limb here and state that Google uses more than three languages

For a long time the 3 "approved" languages for use in production systems at Google were Java, Python and (a subset of) C++ (Javascript was a fourth language, but was a special case - used only in the browser) [1][2].

I believe that has changed recently with Sawzel, Go, Dart, etc, but he is correct in principle.

[1] http://panela.blog-city.com/python_at_google_greg_stein__sdf...

[2] http://dave-ford.blogspot.com/2008/01/googles-4-approved-pro...