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[Python-Dev] Language Summit Follow-Up

Terry Reedy tjreedy at udel.edu
Thu May 29 18:30:14 CEST 2014 
On 5/28/2014 6:26 PM, Glyph Lefkowitz wrote:

> I hope it's
> not controversial to say that most new Python code is still being
> written against Python 2.7 today;

Given that Python 3 downloads now outnumber Python 2 downloads, I think 
'most' might be an overstatement. But I think it a moot point.

 > if people are writing that code in such a way that it's not
 > 3-friendly, it should be a more immediately noticeable issue.

If the truth were, conservatively, 1/4 of new Python code in 2.7, or 
even less, I would still be in favor of making 3-friendly 2.7 code easier.

This is also important for the separate codebase approach, as in the 
stdlib. Just last week, I got a rejected chunk when backporting because 
a 2.7 idlelib module uses 'file(...' instead of 'open(...'.

-- 
Terry Jan Reedy
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