new_contents: """
  Take the csv/tsv data from coding and non-coding files and insert into
  Gene Locus database.
  """
  
  import logging
  from collections import OrderedDict
  
  from django.core.management.base import BaseCommand, CommandError
  
  from apps.mutations.models import GeneLocus
  
  LOGGER = logging.getLogger('apps.mutations')
  
  class Command(BaseCommand):
      def add_arguments(self, parser):
          parser.add_argument('--files', nargs='+', type=int,
              help='Specify the code files')
  
      def handle(self, dataset_id=None, retry=False, **options):
          for f in files:
              if not os.path.isfile(f):
                  raise IOError("File doesn't exist: %s" % f)
  
          for f in files:
              self.process_file(f)
  
      def process_file(self, filename):
          with open(filename, 'r') as fhl:
              self.process_data(fhl.read().split('\n'))
  
      def process_data(self, data):
          drugs = OrderedDict()
          drug = None
          for item in data:
              item = item.strip()
              if not item:
                  continue
              if item and not ' ' in item:
                  drug = item
                  DRUGS[drug] = []
                  continue
              if not drug:
                  logging.warning("Drug missing in mutation list (%s)." % item)
                  continue
  
              (x, result) = item.split(' ', 1)
  
              drugs[drug].append(result)
  
  
subject: Add gene locus generator taking in tabular inputs and using fav lib