web2py used to be called Gluon so it is new but not too new. The main reason for bytecode compiling in web2py is that, for each page, the template+layout+includ

web2py used to be called Gluon so it is new but not too new. The main reason for bytecode compiling in web2py is that, for each page, the template+layout+included views are converted into a single bytecode compiled file. That means that when serving the page there is no parsing of the template, no pattern matching, no text replacement and therefore it is much faster than the alternative.