experimental "buffer" protocol array support in 3.1

Hi,

Can you expand on this new buffer protocol? Is worth using yet?

I have some pixels stored in <type 'buffer'>, and at the moment I end up
making a copy of the pixels to a simple python string before uploading
them with glTexSubImage2D. Wouldn't it be better to use this new buffer
protocol when available? (or maybe even something else?)
If so, how can I easily test for the availability of the this array handler?
(I've had a brief look arraydatatype.py and quickly got utterly lost..)

Thanks
Antoine

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