On Fri, 15 Dec 2006 11:56:55 +0100, Manlio Perillo <[EMAIL PROTECTED]> wrote:
First let me say that I really like Nevow template system.
Once you became expert with it, it proves to be really flexible.
The problem is the performance.
I have done a simple test with the rendering of a table 5 * 20, Nevow
against Django, and Nevow is much slower.
The problem is that, I think, there are a lot of objects adaptation.
Is it possible to use that same model used by django.template?
You pass a context (that is a dictionary usable like a stack: push/pop) to
the render function.
All the data directive will search the data in the context (like djando,
first dictionary lookup, then attribute lookup, and so).
As an example n:data='x.y' ==> ctx['x']['y'].
A rend.Page.renderHTTP can build a context from the instance dictionary.
Optimization can be a complicated undertaking. I urge you to take a look
at the cProfile module included with Python 2.5 or the "lsprof" distribution
of the same module for Python 2.4. When you have evidence of a particular
bottleneck, please post again. If you have already collected profiling data,
please include it whenever you post about performance.
Jean-Paul
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