new_contents: import h5py
  import bitshuffle.h5
  import numpy
  import tempfile
  
  
  def test_is_h5py_correctly_installed():
      """
      If this test fails you probably need to install h5py from source manually:
  
      $ pip install --no-binary=h5py h5py
      """
      f = h5py.File(tempfile.gettempdir() + '/h5testfile', "w")
      block_size = 0
      dataset = f.create_dataset(
          "data",
          (100, 100, 100),
          compression=bitshuffle.h5.H5FILTER,
          compression_opts=(block_size, bitshuffle.h5.H5_COMPRESS_LZ4),
          dtype='float32',
      )
  
      array = numpy.random.rand(100, 100, 100)
      array = array.astype('float32')
      dataset[:] = array
      f.close()
  
  
subject: add h5py test