old_contents: # coding: utf-8
  
  # PYTHON
  from datetime import datetime
  
  # DJANGO
  from django.shortcuts import render
  from django.views.generic.base import TemplateView
  
  class LandingPage(TemplateView):
      template_name = 'landing_page.html'
  
      def get_context_data(self, **kwargs):
          context = super(LandingPage, self).get_context_data(**kwargs)
          context['today'] = datetime.now()
          context['concert_10_avril'] = datetime(2015, 4, 11)
          return context
  
new_contents: # coding: utf-8
  
  # PYTHON
  from datetime import datetime
  
  # DJANGO
  from django.shortcuts import render
  from django.views.generic.base import TemplateView
  
  class LandingPage(TemplateView):
      template_name = 'landing_page.html'
  
      def get_context_data(self, **kwargs):
          context = super(LandingPage, self).get_context_data(**kwargs)
          context['today'] = datetime.now()
          context['concert_10_avril'] = datetime(2015, 4, 11)
          context['LTDC15'] = datetime(2015, 9, 4)
          context['endLTDC15'] = datetime(2015, 9, 8)
          return context
  
subject: Update views.py