[Python-Dev] PEP 318 - generality of list;
restrictions on elements
aahz at pythoncraft.com
Wed Mar 10 10:31:26 EST 2004
On Wed, Mar 10, 2004, Guido van Rossum wrote:
>>> I'd be very surprised if the interpreter cared that a decorator
>>> returned a callable; what should it care?
>> The interpreter doesn't care; *people* care. That's precisely why it
>> should be a documented requirement.
> So decorators couldn't be used to create read-only properties?
Maybe I'm misunderstanding something. I thought that a property contains
a get descriptor, which makes it a kind of callable. Read-only
properties contain a set descriptor that either does nothing or raises an
exception. That doesn't affect whether the property is classified as a
Also, I thought we had explicitly punted on allowing decorators to create
properties because the syntax wasn't sufficiently flexible without
Aahz (aahz at pythoncraft.com) <*> http://www.pythoncraft.com/
"Do not taunt happy fun for loops. Do not change lists you are looping over."
--Remco Gerlich, comp.lang.python
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