[Tutor] Bar Operator ??

[Danny Yoo]

>
> It's a filter:
>
> https://docs.djangoproject.com/en/1.5/ref/templates/builtins/

And to be explicit about Mitya's point: it's technically not Python.
It's part of Django's template language.  If it were Python, it'd be
interpreted as the "or" bitwise operator,

    http://docs.python.org/3/reference/expressions.html#binary-bitwise-operations

but that's definitely not what's happening here.  In your context, as
part of a Django template document, interpret "|" as notation for the
filtering operation.