[Zope3-dev] two small bugs in zc.relationship

[Stefan H. Holek]

As a general rule you should avoid taking the boolean value of  
objects. You never know what the result will be and how expensive the  
underlying operations are (e.g. computing the length of a BTree can  
be *very* expensive).

Stefan


On 2. Jul 2007, at 14:24, Markus Kemmerling wrote:

> But I wouldn't have expected a non built-in type, that *also*  
> supports the mapping API, to be considered as `False` as long as  
> the mapping is empty ...

--
Anything that happens, happens.  --Douglas Adams