text: from django.conf.urls import include, url
  from django.contrib import admin
  
  urlpatterns = [
      url(r'^$', 'app.views.filechoosing', name='filechoosing'),
      url(r'^datachoosing$', 'app.views.datachoosing', name='datachoosing'),
      url(r'^result$', 'app.views.result', name='result'),
  ]
  