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 ...
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