old_contents: from django.conf.urls import url
  from health_monitor import views
  
  
  urlpatterns = [
      url(r'^health/(?P<uid>[\w-]*)/$', views.read, name='read'),
      url(r'^health/(?P<uid>[\w-]*)/update/(?P<test_name>[\w-]*)/$', views.update, name='update'),
      url(r'^health/(?P<uid>[\w-]*)/history/(?P<group>[\w-]*)/$', views.history, name='history'),
  ]
  
new_contents: from django.conf.urls import url
  from health_monitor import views
  
  
  urlpatterns = [
      url(r'^health/(?P<uid>[\d]*)/$', views.read, name='read'),
      url(r'^health/(?P<uid>[\d]*)/update/(?P<test_name>[\w-]*)/$', views.update, name='update'),
      url(r'^health/(?P<uid>[\d]*)/history/(?P<group>[\w-]*)/$', views.history, name='history'),
  ]
  
subject: Modify UID to be passed as number.