[Python-ideas] immutable classes [was: pre-PEP: Default Argument Expressions]

Josiah Carlson jcarlson at uci.edu
Sun Feb 18 05:25:29 CET 2007

"Jim Jewett" <jimjjewett at gmail.com> wrote:
> >>> class Vector3D(tuple):
> ...         def __new__(self, x, y, z):
> ...             return super(Vector3D, self).__new__(self, (x, y, z))
> ...         x=property(lambda self: self[0])
> ...         y=property(lambda self: self[1])
> ...         z=property(lambda self: self[2])

That looks very much like Raymond Hettinger's named tuple recipe,
recently offered in python-dev:


 - Josiah

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