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Fri Jan 30 05:27:14 CET 2009 · https://mail.python.org/pipermail/python-dev/2009-January/085707.html

Ron Adam wrote:
> 
> 
> Steven D'Aprano wrote:
>> Michael Foord wrote:
>>
>>> Don't we have a pretty-print API - and isn't it spelled __str__ ?
>>
>> Not really. If it were as simple as calling str(obj), there would be 
>> no need for the pprint module.
> 
> I agree.  And when I want to use pprint, there are usually additional 
> output formatting requirements I need that isn't a "one size fits all" 
> type of problem.

Like others, I am wary of over-expanding the list of special methods. 
Perhap format strings could have a fourth conversion specifier, !p 
(pretty) in addition to !s, !r, and !a.

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[Python-Dev] pprint(iterator)