Django Design Patterns and Best Practices: Industry-standard web development techniques and solutions using Python, 2nd Edition

by Arun Ravindran

var.method1().method2(arg), Django uses the pipe syntax {{ var|method1|method2:"arg" }}, which is similar to Unix filters. However, this syntax only works for built-in or custom-defined filters. Another limitation is that filters cannot access the template context. They only work with the data passed into them and their arguments.