new_contents: import sys
  import os
  import json
  from optparse import make_option
  
  from django.core.management.base import BaseCommand, CommandError
  
  class Command(BaseCommand):
      help = 'Export Route(s) as GeoJSON'
  
      option_list = BaseCommand.option_list + (
          make_option('-o', dest='output_directory'),
      )
  
      def handle(self, *args, **kwargs):
          if len(args) == 0:
              raise CommandError('Please specify transportation id')
  
          output = kwargs.get('output_directory')
  
          tid = args[0]
          self._export(tid, output)
  
      def _export(self, tid, output=None):
          t = self._get_route_or_fail(tid)
          self._write(t, output)
  
      def _get_route_or_fail(self, tid):
          from angkot.route.models import Transportation
  
          t = Transportation.objects.filter(pk=tid, active=True)
          if len(t) == 0:
              raise CommandError('Transportation id not found: {}'.format(tid))
  
          return t[0]
  
      def _write(self, t, output=None):
          data = t.to_geojson()
          data['properties']['legal'] = dict(
              license='ODbL 1.0',
              copyright='© AngkotWebId Contributors')
          geojson = json.dumps(data, indent=4)
  
          out = self._get_output(t, output)
          out.write(geojson)
          out.close()
  
      def _get_output(self, t, output=None):
          if output is None:
              return sys.stdout
  
          fname = '{} - {} - {} - {} - {}.json'.format(t.id, t.province, t.city, t.company, t.number)
          path = os.path.join(output, fname)
          return open(path, 'w')
  
  
subject: Add script to export route to GeoJSON data