class level properties

[Charles D Hixson]

I'm trying to construct read-only variables at the class level.  I've 
been unsuccessful.  Any suggestions?

Mixing @classmethod and @property doesn't appear to produce workable 
code.  Ditto for mixing @classmethod and __getattr__.  (The property 
approach compiles, but execution says that you can't execute properties.)

I've got a rather large number of variables, so I don't want to define 
function accessors for each of them, and I *REALLY* don't want to have 
to access them as functions rather than variables or properties.