[Python-Dev] PEP 414 - Unicode Literals for Python 3

["Martin v. Löwis"]

Am 27.02.2012 18:05, schrieb Ethan Furman:
> Martin v. Löwis wrote:
>> Am 26.02.2012 07:06, schrieb Nick Coghlan:
>>> On Sun, Feb 26, 2012 at 1:13 PM, Guido van Rossum <guido at python.org>
>>> wrote:
>>>> A small quibble: I'd like to see a benchmark of a 'u' function
>>>> implemented in C.
>>> Even if it was quite fast, I don't think such a function would bring
>>> the same benefits as restoring support for u'' literals.
>>
>> You claim that, but your argument doesn't actually support that claim
>> (or I fail to see the argument).
> 
> Python 2.6 code:
>    this = u'that'
> 
> Python 3.3 code:
>    this = u('that')
> 
> Not source compatible, not elegant.  (Even though 2to3 could make this
> fix, it's still kinda ugly.)

No:

Python 2.6 code

this = u('that')

Python 3.3 code

this = u('that')

It *is* source compatible, and 100% so. As for elegance: I find the u
prefix fairly inelegant already; the function removes just a little
more elegance.

Regards,
Martin