Re: [Zope-dev] _getOb or __getattr__?

Shane Hathaway wrote:

No. The expensive part is invoking Python code from C. It's the same problem described by the documentation for the Python sort() method: it's much faster to sort() then reverse() than it is to sort() with a comparison function that reverses the elements. Invoking C from Python is fast, but invoking Python from C apparently requires a lot of work.

Thanks, that actually explains (completely unrelated to __getattr__ ;-) why one of our Zope products is so dog slow right now :-) cheers, Chris