[Python-ideas] read-only attributes

[K. Richard Pixley]

It seems to me that one of the more common reasons for using @property 
is to create a read-only attribute.  I wonder if it would make sense to 
simply create a read-only decorator.

Compare:

class Foo(object):
     _size = 4

     @property
     def size(self):
         return _size

against:

class Foo(object):
     @read-only
     size = 4

This gets more interesting if decorators nest:

class Foo(object):
     __metaclass__ = abc.ABCMeta

     @abstract
     @classattribute
     @read-only
     size = None

--rich