From __future__ import unicode_literals

[Claude Paroz]

To the road to Python3, a possible next step would be to use the from __future__ import unicode_literals and remove the u'' prefixes, as it is not supported in Python3 (may be added in 3.3 for compatibility reasons).

I made a branch which has strong inspiration from Vinay Sajip Python3 branch of Django (​https://bitbucket.org/vinay.sajip/django):
​https://github.com/claudep/django/tree/unicode_literals

[anonymous]

​http://www.python.org/dev/peps/pep-0414/

[Claude Paroz]

I know about PEP 414, however we must decide if we want to support 3.2 or not...

[anonymous]

I thought that decision had bee made, in favor of supporting 3.2. In this message: ​http://groups.google.com/group/django-developers/msg/49572ac23eb3267f from Carl Meyer:

I think the fact that the next Ubuntu LTS will include Python 3.2, and
it won't be possible to make use of PEP 314 on Python 3.2 without
install-time-transformation hacks, is a strong argument in favor of
sticking with a working unicode_literals port rather than reworking it
to use PEP 314.

I do not see any follow-up disagreeing with that position.

[Karen Tracey]

Comment #3 was me.

[Aymeric Augustin]

If I understand correctly (far from granted in this area):

• if we only support 3.3+, we can use u"" and b"" for unicode and bytes (resp.)
• to support 3.2, we have to use "" and b""

This doesn't make a big difference, so I agree with Karen and Carl that we should support 3.2.

I suppose automatic tools exist to help the conversion?

[Claude Paroz]

Replying to aaugustin:
(...)

I suppose automatic tools exist to help the conversion?

The conversion is already done (more or less automatically) in my branch (see link in the description).

[Claude Paroz <claude@…>]

In [38408f8007eae21b9f1cbbcc7f86d4b2042ff86a]:

Marked bytestrings with b prefix. Refs #18269

This is a preparation for unicode literals general usage in
Django (Python 3 compatibility).

[Claude Paroz]

I just updated the branch (rebased) and created a pull request for better review: ​https://github.com/django/django/pull/86

[Claude Paroz <claude@…>]

In [4a103086d5c67fa4fcc53c106c9fdf644c742dd8]:

Fixed #18269 -- Applied unicode_literals for Python 3 compatibility.

Thanks Vinay Sajip for the support of his django3 branch and
Jannis Leidel for the review.