On 06/06/2012 11:56 PM, Nick Coghlan wrote:
I'd say return a copy in the first case to be safe against accidental modification. If someone actually wants in-place modification, they can access __signature__ directly.
I really don't understand this anxiety about mutable Signature objects. Can you give a plausible example of "accidental modification" of a Signature object? I for one--as clumsy as I am--cannot recall ever "accidentally" modifying an object.
I really don't think signature() should bother copying/deep-copying the Signature before returning it.
//arry/
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