old_contents: from django.contrib import admin
  from django.conf.urls import url, include
  
  from . import views
  
  urlpatterns = [
      url(r'^$', views.index, name='index'),
      url(r'^main/$', views.main, name='main'),
      url(r'^upload_csv$', views.upload_csv, name='upload_csv'),
      url(r'^list$', views.list, name='list')
  ]# ] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
new_contents: from django.contrib import admin
  from django.conf.urls import url, include
  
  from . import views
  
  urlpatterns = [
      url(r'^main/$', views.main, name='main'),
      url(r'^upload_csv$', views.upload_csv, name='upload_csv'),
      url(r'^list$', views.list, name='list')
  ]# ] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
subject: remove redundant urls