[Python-ideas] C# style properties
ntoronto at cs.byu.edu
Sat Jul 14 06:54:11 CEST 2007
Greg Ewing wrote:
> Neil Toronto wrote:
> > It might be nice to be able
> > to declare a one-off namespace:
> Yes, things like this have been suggested before.
> There was a thread not long ago about a 'make'
> statement, for example, and there have been numerous
> suggestions for a 'namespace' statement.
> My favourite version would be something like
> intance foo(property):
> def __get__(self):
> def __set__(self, x):
Surely you meant to write "instance". :) I like that spelling. The
keyword has exactly the right meaning. I imagine having to create a new
keyword just for a bit of syntactic sugar would be the main argument
It's not just about saving keystrokes, though.
> which would be roughly equivalent to
> class _foo(property):
> foo = _foo()
> but without the intermediate class name.
Seems this sort of thing would be trivial with a class decorator,
something like "@instance" or "@oneinstance". ("@singleton" would
probably make people expect a call to the class to return a unique
instance only the first time.) As part of my new delvination (that's a
word) into metaclasses, I've been trying to make a metaclass that does
the same thing. (No spoilers, please!)
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