"AR" == Armin Rigo <arigo@tunes.org> writes:
AR> On Tue, Jan 28, 2003 at 05:44:26PM -0500, Guido van Rossum wrote:
These all abuse the class keyword for something that's definitely not a class. That's a fatal flaw.
AR> Too bad Python's metaclasses are powerful enough for doing all AR> the kind of things that a macro system could do without actually AR> manipulating the syntax, if it is to hear that actually doing so AR> is fatally flawed :-( Zope is full of hacks like this :-). In Zope3, I see many new language features added through metaclasses, special objects created with class statements, elaborate protocols to declare interfaces and lookup adapters for objects by interface. I think many or all of these features are necessary in such a large system intended to accomodate extension at so many levels. Many of the Zope3 features are begging for syntactic support. That is, the use of the features would be clearer if they could be spelled in a straightforward way. Python provides plenty of features that allow you to extend the language. It's unfortunate that you can't extend the syntax, too. Jeremy