> <p py:if="has_permission('edit-posts')">
> Congrats! You can edit blog posts.
> </p>
>
> This would of course always evaluate to true.
object.__nonzero__(self)
Called to implement truth value testing, and the built-in
operation bool(); should return False or True, or their integer
equivalents 0 or 1. When this method is not defined, __len__() is
called, if it is defined (see below). If a class defines neither
__len__() nor __nonzero__(), all its instances are considered true.
Implementing __nonzero__ should eliminate the trap.
Michael
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