Python 3.3.0a4, please add ru'...'

[Serhiy Storchaka]

On 16.06.12 20:36, jmfauth wrote:
>>>> u'a'
> 'a'
>>>> ur'a'
> 'a'

Please, never use u'' in new Python 3 code. This is only for 
compatibility with Python 2. And Python 2 does not support ru''.