Neither javascript or python or fast enough to matter. Look at the alioth tests (http://shootout.alioth.debian.org/u32q/benchmark.php?test=all&lang=all&box=1 ht

Neither javascript or python or fast enough to matter. Look at the alioth tests (http://shootout.alioth.debian.org/u32q/benchmark.php?test=all&lang=all&box=1 http://shootout.alioth.debian.org/u32q/benchmark.php?test=al...). V8 is still 25 times slower than C. Does it really matter if you're 25 times slower than C vs 50 or 60 times slower? No, not at all. Using either on the server side you'd have to resort to native code to do the real heavy lifting. Plus, if unladen swallow keeps its promise of doubling CPython's speed, then the gap between the two languages will once again be fairly narrow. There are more client-side Javascript developers than Python developers, maybe, but not more server-side or general purpose Javascript developers. Google's primary server-side languages are C++, Java, and Python, by the way. Plus, as a language, Python is superior to Javascript. While the best languages rarely win, hopefully it'll help keep Python in the game for a while longer!