Christoph Zwerschke wrote: > thakadu schrieb: > >>I have used PyMeld (http://www.entrian.com/PyMeld/) which is one of >>very few that gives a 100% separation of code and presentation, in fact >>PyMeld is not strictly speaking a template system at all. > > Yes, it is more like XIST that I mentioned in another post. > The reason why this is slower than native templates seems clear: You > convert the whole page to objects in memory, and then serialize > everything back to HTML. If you are only filling in a few words, then > native templates will be surely much more effective. But if you are > messing around with the structure of your page, inserting and adding > elements, then PyMeld will be probably a better way.
Unless I'm misremembering, PyMeld is special amongst the "total decoupling of code and presentation" crowd in that it does *not* convert the whole page to objects in memory, but instead performs its operations using regular-expression substitution, and serializing back to HTML is a trivial operation since it's already serialized. I'm sure the extra overhead versus simple % substitution is noticeable, but I have to say I was surprised to hear that it was measured at two orders of magnitude slower. I thought better performance (versus the "manipulate in-memory as DOM" approach) was one of its advantages. -Peter -- http://mail.python.org/mailman/listinfo/python-list
