Full description
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. This is the python wrapper.