Immutability

[Robert Kern]

Nick Maclaren wrote:
> The way that I read it, Python allows only values (and hence types)
> to be immutable, and not class members.  The nearest approach to the
> latter is to use the name hiding conventions.
> 
> Is that correct?

You can also make properties that don't allow writing.

class Foo(object):

     def __init__(self, bar):
         self._bar = bar

     @property
     def bar(self):
         return self._bar

-- 
Robert Kern

"I have come to believe that the whole world is an enigma, a harmless enigma
  that is made terrible by our own mad attempt to interpret it as though it had
  an underlying truth."
   -- Umberto Eco