old_contents: from django.conf.urls import urlfrom userena import views as userena_viewsfrom forms import CustomSignupFormurlpatterns = [    url(r'^signup/$', userena_views.signup, {'signup_form': CustomSignupForm, 'template_name': 'signup.html'}, name="signup"),    #url(r'^signup/$', userena_views.signup,{'signup_form': CustomSignupForm}),]
  
new_contents: from django.conf.urls import url
  from userena import views as userena_views
  from forms import CustomSignupForm
  
  urlpatterns = [
    url(r'^signup/$', userena_views.signup, {'signup_form': CustomSignupForm, 'template_name': 'signup.html'}, name="signup"),
    #url(r'^signup/$', userena_views.signup,{'signup_form': CustomSignupForm}),]
  
subject: Update urls.py