title: user format to ugettext
body: <p>How use foramt to ugettext?</p>
  
  <pre><code># is not valid code
  from django.utils.translation import ugettext as _
  
  def index(req):
      return _('Hello world {}').format('Users')
  </code></pre>
  
  <p>ore use (сreate more duplicate):</p>
  
  <pre><code>_('Hello world {}'.format('Users')) 
  </code></pre>