title: NoReverseMatch at / list
body: <p>I tried get dynamic link</p>
  
  <p>Error:</p>
  
  <blockquote>
    <p>NoReverseMatch at /</p>
    
    <p>Reverse for 'new_single' with keyword arguments '{'pk': 1}' not found.
    1 pattern(s) tried: ['single/']</p>
  </blockquote>
  
  <p>Code:
  view:</p>
  
  <pre><code>{% for new in news %}
  
      {{ new.id }}
       &lt;h2&gt;&lt;a href="{% url 'new_single' pk=new.id %}"&gt;{{ new.title }}&lt;/a&gt;&lt;/h2&gt;
  {% endfor %}
  </code></pre>
  
  <p>urls:</p>
  
  <pre><code>urlpatterns = [
      url(r'^$', views.news_list, name='news_list'),
      url(r'single/&lt;int:pk&gt;', views.new_single, name="new_single"),
  ]
  </code></pre>
  
  <p>views:</p>
  
  <pre><code>def new_single(request,pk):
      new=get_object_or_404(News,id=pk)
      return render(request,"news/news_single.html",{"new":new})
  </code></pre>