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Tue Feb 13 04:01:57 CET 2007 · https://mail.python.org/pipermail/python-dev/2007-February/071015.html

Barry Warsaw wrote:
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> On Feb 12, 2007, at 7:32 PM, Guido van Rossum wrote:
> 
>> Oh, now I am definitely in favor of .[]! I read it in gmail in FireFox
>> which uses a small variable-pitch font whose dot is a single pixel.
>> The .() example was hard to find; the .[] jumped out immediately.
>> (When do you ever see self[anything]?)
> 
> Raymond's -> suggestion was nice.

I think it's gets a bit awkward in some situations.

    if bar->'__%s__' % attr < -42: print 'Hello World'

    if bar.['__%s__' % attr] > -42: print 'Hello World'

To me it's easier to parse the second one visually.

Ron

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[Python-Dev] New syntax for 'dynamic' attribute access