[Python-Dev] PEP 469: Restoring the iterkeys/values/items() methods

[Tres Seaver]

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On 04/20/2014 07:37 AM, Paul Moore wrote:

> Ultimately, every time we add *any* sort of compatibility feature to 
> Python 3 (Unicode literals, bytes interpolation, this) we are sending 
> the message that we made a mistake in the design of Python 3. It's 
> certainly possible that's the case (we didn't have a lot of hard data 
> to go on) but I do think we should have a little more confidence in 
> our judgement here.

We clearly made mistakes, especially in how we thought migration would
occur:  nobody expected that we would see straddling / compatible subset
as the dominant porting strategy.  Re-adding features to make the
strategy that works less painful is just acknowledging that fact.

Mark such features as BBB-only / deprecated-but-never-to-be-removed, and
move on:  "practicality beats purity".


Tres.
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Tres Seaver          +1 540-429-0999          tseaver at palladion.com
Palladion Software   "Excellence by Design"    http://palladion.com
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