Django: Web Development with Python

Debugging Django templates

Projects can have very complicated logic in their templates. Subtle bugs while creating a template can lead to hard-to-find bugs. We need to set TEMPLATE_DEBUG to True (in addition to DEBUG) in settings.py so that Django shows a better error page when there is an error in your templates.

There are several crude ways to debug templates, such as inserting the variable of interest, such as {{ variable }}, or if you want to dump all the variables, use the built-in debug tag like this (inside a conveniently clickable text area):

<textarea onclick="this.focus();this.select()" style="width: 100%;"> 
  {% filter force_escape %} 
    {% debug %} 
  {% endfilter %}
</textarea>

A better option is use the Django Debug Toolbar mentioned earlier. ...