title: How to get something to appear on every page in Django?
body: <p>I'm curious as to the best-practise way to handle having something appear on every page, or on a number of pages without having to assign the data manually to every page like so:</p>
  
  <pre><code># views.py
  
  def page0(request):
      return render_to_response(
          "core/index.html",
          {
              "locality": getCityForm(request.user),
          },
          context_instance=RequestContext(request)
      )
  
  def page1(request):
      return render_to_response(
          "core/index.html",
          {
              "locality": getCityForm(request.user),
          },
          context_instance=RequestContext(request)
      )
  ...
  def page9(request):
      return render_to_response(
          "core/index.html",
          {
              "locality": getCityForm(request.user),
          },
          context_instance=RequestContext(request)
      )
  </code></pre>
  
  <p>Now I can think of a few ways to do this, including writing my own Context or maybe some middleware, and of course, copy/pasting this <code>locality</code> assignment on every page...  I'm just not sure of the best way to do this.  I'm pretty sure that it's not that last one though.</p>