Initializing subclasses of tuple

[Nick Coghlan]

gry at ll.mit.edu wrote:
> To inherit from an immutable class, like string or tuple, you need to
> use the __new__ member, not __init__.  See, e.g.:
> 
> http://www.python.org/2.2.3/descrintro.html#__new__

Any volunteers out there willing to put some words about __new__ together for 
the main Python docs, please consider posting them on SF :)

It's currently conspicuous by its absence:
http://www.python.org/dev/doc/devel/ref/customization.html

Cheers,
Nick.

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