[Python-Dev] readd u'' literal support in 3.3?

[Nick Coghlan]

Input = normal 2.x code; Output = code that runs on both 2.x and 3.x.

That is, tinkering with what 2to3 produces, not what it accepts.

--
Nick Coghlan (via Gmail on Android, so likely to be more terse than usual)
On Dec 13, 2011 11:46 PM, "Michael Foord" <fuzzyman at voidspace.org.uk> wrote:

> On 13/12/2011 13:33, Laurence Rowe wrote:
>
>> On Mon, 12 Dec 2011 22:18:40 +0100, Chris McDonough <chrism at plope.com>
>> wrote:
>>
>>  On Mon, 2011-12-12 at 09:50 -0500, PJ Eby wrote:
>>>
>>>
>>>         As someone who ported WebOb and other stuff built on top of it
>>>>        to Python
>>>>        3 without using "from __future__ import unicode_literals", I'm
>>>>        kinda sad
>>>>        that to be using best practice I'll have to go back and flip
>>>>        the
>>>>        polarity on everything.
>>>>
>>>>
>>>> Eh?  If you don't need unicode_literals, what's the problem?
>>>>
>>>
>>> Porting the WebOb code sucked.  It's only about 5K lines of code but the
>>> porting effort took me about 80 hours.  Some of the problem is certainly
>>> my own idiocy, but some of it is just because straddling code across
>>> Python 2 and Python 3 currently requires that you change lots and lots
>>> of code for suspect benefit.
>>>
>>
>> Could this manual work be cut down if there was a version of 2to3 that
>> targeted the subset of the language that is compatible with both 2 and 3?
>> That would seem to avoid most of the drawbacks to the current 2to3 approach.
>>
>>  I'm not sure what you mean, but it *reads* as if you mean "a version of
> 2to3 that only converts code that doesn't need converting". Could you
> clarify?
>
> Thanks,
>
> Michael
>
>  Laurence
>>
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>>
>
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