old_contents: from django.conf.urls import patterns, url
  
  urlpatterns = patterns(
      'us_ignite.people.views',
      url(r'^$', 'profile_list', name='profile_list'),
      url(r'^(?P<slug>[-\w]{1,32})/$', 'profile_detail', name='profile_detail'),
  )
  
new_contents: from django.conf.urls import patterns, url
  
  urlpatterns = patterns(
      'us_ignite.people.views',
      url(r'^$', 'profile_list', name='profile_list'),
      url(r'^(?P<slug>[-_\w]{1,32})/$', 'profile_detail', name='profile_detail'),
  )
  
subject: Allow underscores as the user profile slug.