pkgsrc-wip/py-blosc/DESCR

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Blosc is a high performance compressor optimized for binary data. It
has been designed to transmit data to the processor cache faster than
the traditional, non-compressed, direct memory fetch approach via a
memcpy() OS call. Blosc works well for compressing numerical arrays
that contains data with relatively low entropy, like sparse data, time
series, grids with regular-spaced values, etc.
py-blosc is a Python package that wraps Blosc.