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Native object exposing buffer protocol


On Saturday, January 6, 2018 at 12:02:18 AM UTC, Rob Gaddi wrote:
> I'd like to create a native Python object that exposes the buffer 
> protocol.  Basically, something with a ._data member which is a 
> bytearray that I can still readinto, make directly into a numpy array, etc.
> 
> I can do it by inheriting the entire thing from bytearray directly, but 
> that gives me a whole lot of methods that are unsuitable for what I'm 
> doing with it, which is reading the contents of a binary file, allowing 
> them to be lightly malleable in memory, and then sending them on to a 
> device.
> 
> Not the end of the world (the file's less than 2KB), but it seems like 
> something that should be doable easily without having to throw around a 
> lot of extraneous copies.
> 
> -- 
> Rob Gaddi, Highland Technology -- www.highlandtechnology.com
> Email address domain is currently out of order.  See above to fix.

Could you use memoryviews instead of making the copies?

--
Kindest regards.

Mark Lawrence.