def new_knitting_pattern_set_loader(specification=DefaultSpecification()):
parser = specification.new_parser(specification)<EOL>loader = specification.new_loader(parser.knitting_pattern_set)<EOL>return loader<EOL>
Create a loader for a knitting pattern set.

    :param specification: a :class:`specification
      <knittingpattern.ParsingSpecification.ParsingSpecification>`
      for the knitting pattern set, default
      :class:`DefaultSpecification`