[Python-ideas] __contains__=None (was: __iter__ implies __contains__?)

[Raymond Hettinger]

On Oct 3, 2011, at 8:09 PM, Jan Kaliszewski wrote:

> Maybe there should be possible to explicitly disallow the 'in' test by
> setting __contains__ to None (similar to already settled __hash__=None
> for non-hashables).

We need fewer arcane rules -- not more of them.


Raymond

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