Nice point, and really, how many folks actually find writing code in Python cumbersome or "work" like some languages? It's not perfect and of course if you need really fast computing, it's obviously not (even close to) the best for speed, but it's expressiveness & readability are a pretty big step up from most other languages.

Also, I hadn't seen this essay by PG before (from the comments); a bit old, but interesting take:

http://www.paulgraham.com/pypar.html