I don't think it's public. In any case, its argument basically boiled down to "Python doesn't have static types, without static types it's too hard to communicate API information between programmers, Google has thousands of programmers that need to communicate, so please don't use Python."

what type of paper, Google's coding policy? there is a mail-list post, https://groups.google.com/forum/?fromgroups#!topic/unladen-s...

What language do they recommend for large programs?