title: Flask app return string doesn't display <abc>
body: <p>I tried to display a string on a webpage with this Flask code:</p>
  <pre><code>@app.route('/')
  def index():
      return 'Variable can be of different types: string and &lt;int&gt;'
  </code></pre>
  <p>and got</p>
  <pre><code>Variable can be of different types: string and
  </code></pre>
  <p>without &quot;&lt;&gt;&quot;.
  A way to fix it is to add a space between &quot;&lt;&quot; and &quot;int&quot; like:</p>
  <pre><code>Variable can be of different types: string and &lt; int &gt;. 
  </code></pre>
  <p>Also I noticed that the space for the closing &gt; as in &quot;&lt; int&gt;&quot; doesn't matter.</p>
  <p>Other characters such as [int] and {int} have no such a problem. Why? tag related?</p>