[Python-3000] removing exception .args

[Nick Coghlan]

Greg Ewing wrote:
> Nick Coghlan wrote:
>> Putting the essential parts in 
>> __new__ means never having to include the instruction that "you must 
>> call this classes __init__ method when subclassing and overriding 
>> __init__" into any API documentation I write.
> 
> I always assume that I *do* have to call the base __init__
> if I override it, unless something explicitly says that
> I don't. And I assume other people follow the same rule,
> so I don't feel obliged to spell it out when I document
> my own classes.

Andrew actually pointed out a flaw in my suggestion - if the person 
subclassing wants to change the constructor signature, they end up 
needing to override both __new__ and__init__, rather than just __init__. 
So the implementation trick is exposed more than I thought, and the idea 
is far less useful outside of tightly controlled class hierarchies 
(which is where I've personally used it).

/end 
tangent-that-I'd-regret-bringing-up-except-for-the-fact-that-I-learnt-something

Cheers,
Nick.

-- 
Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia
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