SEEKING WORK Remote or onsite around Boston-area. Full data stack: from database extracting/web scraping to tedious data cleaning to analysis to statistical report writing.

software skills: Python, R, SAS, SQL, NOSQL, Excel+VBA, MATLAB

I prefer project-based rates.

Thanks and please contact me via hi at datakungfu com

python's concurrent programming is not that good. how is the situation in ruby?

It's the same. The Ruby 1.9.x (YARV) interpreter uses a GIL as well, although like Python, there's a way for C extensions to release the GIL.

scala and clojure, it seems clojure is simple and more adapted to concurrent world.

scala is complicated, but it got better IDE support than clojure at this time. Some of clojure's community seems prefer Emacs/Vim more than Netbeans/Eclipse, and they really need a good support from netbeans/eclipse.

it all depends on your personal style.

Enclojure for NetBeans is pretty nice.

http://enclojure.org/

For me, scala is too complicated.... now I am reading "programming clojure" and it is more fun so far