text: """
      pyexcel_io.readers.tsv
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  
      The lower level tsv file format handler.
  
      :copyright: (c) 2014-2017 by Onni Software Ltd.
      :license: New BSD License, see LICENSE for more details
  """
  import pyexcel_io.constants as constants
  from .csvr import CSVBookReader
  
  
  class TSVBookReader(CSVBookReader):
      """ Read tab separated values """
      def __init__(self):
          CSVBookReader.__init__(self)
          self._file_type = constants.FILE_FORMAT_TSV
  
      def open(self, file_name, **keywords):
          keywords['dialect'] = constants.KEYWORD_TSV_DIALECT
          CSVBookReader.open(self, file_name, **keywords)
  
      def open_stream(self, file_content, **keywords):
          keywords['dialect'] = constants.KEYWORD_TSV_DIALECT
          CSVBookReader.open_stream(self, file_content, **keywords)
  