title: The Django test client: polls app part 5 NoReverseMatch
body: <p>I am following the <a href="https://docs.djangoproject.com/en/2.1/intro/tutorial05/" rel="nofollow noreferrer">polls app</a> and I am copying everything making sure I have 100% the same code they have but when I use</p>
  
  <pre><code>response = client.get(reverse('polls:index'));
  </code></pre>
  
  <p>I get a huge error and none of the notes are making sense to me. I was told by someone it has to do with my <strong>views.py</strong> but I looked and the Django site and it is 100% the same as mine. This was the error I got:</p>
  
  <pre><code>django.urls.exceptions.NoReverseMatch: Reverse for 'vote' with arguments '('',)' not found. 1 pattern(s) tried: ['pools/(?P&lt;question_id&gt;[0-9]+)/vote/$']
  </code></pre>