Note that style of Pyhton uses block/strict IO (not streaming/lazy) which makes it rather inefficient if any part of he process exits early (due to error or bec

Note that style of Pyhton uses block/strict IO (not streaming/lazy) which makes it rather inefficient if any part of he process exits early (due to error or because the user only wanted the first line of output). Most common command line programs (and simple Haskell programs) are streaming not block.