On Jul 23, 2007, at 8:56 PM, Paul Newton wrote:
>> Start coding in Python, where 'try' blocks are routine, since in
>> many cases it's faster to catch an exception than to test for a
>> condition.
> Yes but it doesn't *feel* right to be "trying" something rather than
> testing in advance ...
But slow apps feel right? ;-)
I know what you mean, but I've seen the performance differences. One
of my current apps has some low-level drawing routines (similar to
the GDI stuff) that are called by the Paint event handler. Paint
events can happen thousands of times a second, so the differences
between:
if hasattr(self, "drawObj"):
self.drawObj.redraw()
- and -
try:
self.drawObj.redraw()
except AttributeError:
pass
...is pretty hefty.
-- Ed Leafe
-- http://leafe.com
-- http://dabodev.com
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