Given that Google employs or has employed Guido van Rosssum, Ken Thompson, Rob Pike, Brian Kernighan, and Josh Bloch, I think that would be a fair assessment of

Given that Google employs or has employed Guido van Rosssum, Ken Thompson, Rob Pike, Brian Kernighan, and Josh Bloch, I think that would be a fair assessment of what "expert" means in the context of interviewing there. It might be apocryphal, but at one point candidates filled a "rate yourself from 1 to 10 in technology X, Y, Z" to help guide the interviewers in choosing questions. The general consensus was "if you rate yourself as a 10 in Python, there's a non-zero chance you'll end up with Guido on your interview panel"