Feature request: String-inferred names

[Bruno Desthuilliers]

Lie Ryan a écrit :
> On 11/28/2009 3:08 PM, The Music Guy wrote:

(snip the part about the proposed feature - which I don't like but 
that's not the point)

>> My
>> projects rely on a lot of metaclassing for the automatic generation of
>> properties and methods, which saves tremendous amounts of coding.
> 
> If you use it a lot, it is likely 1) you have abused class syntax for 
> what should have been a dict or 2) what you need is to override 
> __getattr__/__getattribute__ and __setattr__

I have to totally disagree here. The way the OP uses metaprogramming is 
a really common and handy solution in lots of frameworks, and 
drastically reduces the need for boilerplate (and the potential for 
bugs). It's *WAY* cleaner (readability, introspection, doc etc) and far 
less error-prone than going the __getattr(ibute)__ / __setattr__, and 
also way more efficient (from execution time POV).

Using __getattr__ and __setattr__ to emulate attributes (usually 
descriptors) that can be built at class creation time is IMHO what 
should be labeled as an "abuse" (at best).