[Tutor] Negative IF conditions

[Jacob S.]

> And now for something only slightly different: education research shows 
> that people process
> "positives" far more quickly and accurately than "negatives", so for 
> readability I often code like:



Well, that depends on whether we're optimists or pessimists... ;-)
I probably process negatives alot faster because that's what I expect... :-)
Jacob


#################################################
if os.path.exists('filename')
    #no-operation
else
    #operation

YMMV, of course.

Ron

At 08:52 AM 2/11/2005, Mark Brown wrote:

Hi,
I'm a newbie and was wondering which of these IF conditions is better 
structure:

if not os.path.exists('filename'):

if os.path.exists('filename') == False:




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