old_contents: from __future__ import absolute_import
  import blosc
  import numpy
  
  
  def import_blosc(raw_data):
      """
      Import a blosc array into a numpy array.
  
      Arguments:
          raw_data:  A blosc packed numpy array
  
      Returns:
          A numpy array with data from a blosc compressed array
      """
  
      try:
          numpy_data = blosc.unpack_array(raw_array)
      except Exception as e:
          raise ValueError("Could not load numpy data. {}".format(e))
          raise
  
      return numpy_data
  
  
  def export_blosc(numpy_data):
      """
      Export a numpy array to a blosc array.
  
      Arguments:
          numpy_data:     The numpy array to compress to blosc array
  
      Returns:
          Bytes/String. A blosc compressed array
      """
  
      try:
          raw_data = blosc.pack_array(numpy_data)
      except Exception as e:
          raise ValueError("Could not compress data from array. {}".format(e))
  
      return raw_data
  
new_contents: from __future__ import absolute_import
  import blosc
  import numpy
  
  
  def import_blosc(raw_data):
      """
      Import a blosc array into a numpy array.
  
      Arguments:
          raw_data:  A blosc packed numpy array
  
      Returns:
          A numpy array with data from a blosc compressed array
      """
  
      try:
          numpy_data = blosc.unpack_array(raw_array)
      except Exception as e:
          raise ValueError("Could not load numpy data. {}".format(e))
  
      return numpy_data
  
  
  def export_blosc(numpy_data):
      """
      Export a numpy array to a blosc array.
  
      Arguments:
          numpy_data:     The numpy array to compress to blosc array
  
      Returns:
          Bytes/String. A blosc compressed array
      """
  
      try:
          raw_data = blosc.pack_array(numpy_data)
      except Exception as e:
          raise ValueError("Could not compress data from array. {}".format(e))
  
      return raw_data
  
subject: remove extra raise in blosc