Jiwon Seo is a PhD student in Stanford university, studying parallel query language for data analysis. He contributed to Python in various ways; for example, he implemented PEP 289 (Generator Expressions) and PEP 3102 (Keyword-Only Arguments). He designed and implemented a parallel and distributed query language, called SociaLite. The SociaLite compiler generates efficient parallel code from user query to run in parallel on distributed machines. SociaLite queries can be embedded in Python programs, allowing users to enjoy flexibility of Python and efficiency of SociaLite. More information is in http://socialite.stanford.edu