From: "Bartosz DziewoƄski" Date: 2012-06-21T01:02:52+09:00 Subject: Re: Ruby vs Python vs Java bytecode concept Ruby (1.9+) internally creates bytecode that is slightly similar to Python's one, but it doesn't save it anywhere (it is regenerated every time the script is run). Ruby 1.8 just directly evaluated the source code, without creating bytecode form. -- Matma Rex