title: Get Error: jinja2.exception.TemplateAssertionError: no filter named 'basename'
body: <p>I get this type of error while creating template file.
  I have simple use this type of syntax:</p>
  
  <pre><code>{{ "hello\how\are" | basename}}
  </code></pre>
  
  <p>Please help me solve it.</p>
  
  <p>Thanks</p>