title: What is the difference between <int:pk> and <pk>?
body: <p>Say that we are implementing a simple blog with django and that the blog posts are accessible with URLs like <code>/posts/1/</code>, <code>/posts/2/</code> etc.</p>
  <p>When we define the path variables in the urlpatterns array, what is the main difference between using<br>
  <code>path('post/&lt;int:pk&gt;/', ..., ...)</code> and <code>path('post/&lt;pk&gt;/', ..., ...)</code>?</p>
  <p>Is it just good practice? Are there actual benefits?</p>