SETL is incidentally one of the languages we will be studying as part of the 'Honors Programming Languages' course. SETL is said to have indirectly influenced Python. It is based on Set Theory and allows very succinct list-comprehension-like one-liners. At the start of the course (in January), we were told that it was decided to drop Python in SETL's favor since SETL would be more 'fun'.