new_contents: from django.contrib.staticfiles.storage import staticfiles_storage
  from django.core.urlresolvers import reverse
  
  from jinja2 import Environment
  
  
  def environment(**options):
      pyjade_extension = ['pyjade.ext.jinja.PyJadeExtension']
      env = Environment(extensions=pyjade_extension, **options)
      env.globals.update({
          'static': staticfiles_storage.url,
          'url': reverse,
      })
      return env
subject: add jinja2.py with pyjade extension