old_contents: from django.conf.urls import patterns, url
  from explorer.views import QueryView, CreateQueryView, PlayQueryView, DeleteQueryView, ListQueryView, ListQueryLogView
  
  urlpatterns = patterns('',
      url(r'(?P<query_id>\d+)/$', QueryView.as_view(), name='query_detail'),
      url(r'(?P<query_id>\d+)/download$', 'explorer.views.download_query', name='query_download'),
      url(r'(?P<query_id>\d+)/csv$', 'explorer.views.view_csv_query', name='query_csv'),
      url(r'(?P<query_id>\d+)/email_csv$', 'explorer.views.email_csv_query', name='email_csv_query'),
      url(r'(?P<pk>\d+)/delete$', DeleteQueryView.as_view(), name='query_delete'),
      url(r'new/$', CreateQueryView.as_view(), name='query_create'),
      url(r'play/$', PlayQueryView.as_view(), name='explorer_playground'),
      url(r'csv$', 'explorer.views.download_csv_from_sql', name='generate_csv'),
      url(r'schema/$', 'explorer.views.schema', name='explorer_schema'),
      url(r'logs/$', ListQueryLogView.as_view(), name='explorer_logs'),
      url(r'format/$', 'explorer.views.format_sql', name='format_sql'),
      url(r'^$', ListQueryView.as_view(), name='explorer_index'),
  )
  
new_contents: from django.conf.urls import patterns, url
  from explorer.views import (
      QueryView,
      CreateQueryView,
      PlayQueryView,
      DeleteQueryView,
      ListQueryView,
      ListQueryLogView,
      download_query,
      view_csv_query,
      email_csv_query,
      download_csv_from_sql,
      schema,
      format_sql,
  )
  
  urlpatterns = [
      url(r'(?P<query_id>\d+)/$', QueryView.as_view(), name='query_detail'),
      url(r'(?P<query_id>\d+)/download$', download_query, name='query_download'),
      url(r'(?P<query_id>\d+)/csv$', view_csv_query, name='query_csv'),
      url(r'(?P<query_id>\d+)/email_csv$', email_csv_query, name='email_csv_query'),
      url(r'(?P<pk>\d+)/delete$', DeleteQueryView.as_view(), name='query_delete'),
      url(r'new/$', CreateQueryView.as_view(), name='query_create'),
      url(r'play/$', PlayQueryView.as_view(), name='explorer_playground'),
      url(r'csv$', download_csv_from_sql, name='generate_csv'),
      url(r'schema/$', schema, name='explorer_schema'),
      url(r'logs/$', ListQueryLogView.as_view(), name='explorer_logs'),
      url(r'format/$', format_sql, name='format_sql'),
      url(r'^$', ListQueryView.as_view(), name='explorer_index'),
  ]
  
subject: Update explorer/urls.py with latest conventions