anchor.diff:      [ "--hdf5=${hdf5}"
         "--lzo=${lzo}"
         "--bzip2=${bzip2.dev}"
  +      "--blosc=${c-blosc}"
       ];
   
     # Run the test suite.
  
positive.code: { stdenv, fetchurl, python, buildPythonPackage
  , cython, bzip2, lzo, numpy, numexpr, hdf5, six }:
  
  buildPythonPackage rec {
    version = "3.3.0";
  
negative.code:     sha256 = "0b4211s0zzdmh74k49ss0m9lc2ql2iazq2aa95ams6h45vqcr0w3";
    };
  
    buildInputs = [ hdf5 cython bzip2 lzo c-blosc ];
    propagatedBuildInputs = [ numpy numexpr six ];
  
    # The setup script complains about missing run-paths, but they are
  