memorywrapper 0.0.1

Wrapping non-continuous buffers in a late-resolving slice'able buffer-compatible object

memorywrapper

MemoryWrapper provides a slice-able front-end for a list of non-continuous memory backends, and only joins the needed area into a bytes object as needed.

It uses the new __buffer__ protocol that is implementable in python starting with python 3.12.

Installing

pip install memorywrapper

Using

    >>> from memorywrapper import MemoryWrapper
    >>> import struct
    >>> memory = MemoryWrapper([b"\x01\x02\x03", bytes([4,5,6])])
    >>> part = memory[1:-1]
    >>> (value,) = struct.unpack(">I", part)
    >>> f"0x{value:08x}"
    '0x02030405'

make_slices

make_slices provides a way to cut something like bytes, memoryview, or memorywrapper into equal-sized chunks.

    >>> from memorywrapper import make_slices
    >>> list(make_slices([1,2,3,4,5,6,7,8,9], 3))
    [[1, 2, 3], [4, 5, 6], [7, 8, 9]]