Wildcard imports should be converted to explicit form

[pb@…]

Wildcard imports are ​generally frowned upon in the Python world. There are a handful of these in Django, most of them in urlconfs. Since they have been eschewed everywhere else in the codebase it seems worth cleaning up.

In the urlconfs I've tested, from django.conf.urls.defaults import patterns, include, handler404, handler500 seems to be a viable replacement.

Occurrences in magic-removal/django, r2542:

$ grep -nr 'import \*' . | grep -v .svn
./conf/project_template/urls.py:1:from django.conf.urls.defaults import *
./conf/urls/admin_password_reset.py:1:from django.conf.urls.defaults import *
./conf/urls/i18n.py:1:from django.conf.urls.defaults import *
./conf/urls/registration.py:1:from django.conf.urls.defaults import *
./conf/urls/shortcut.py:1:from django.conf.urls.defaults import *
./contrib/admin/urls.py:1:from django.conf.urls.defaults import *
./contrib/comments/urls/comments.py:1:from django.conf.urls.defaults import *
./contrib/flatpages/urls.py:1:from django.conf.urls.defaults import *
./core/template_loader.py:7:from django.template.loader import *
./db/models/__init__.py:5:from django.db.models.loading import *
./db/models/__init__.py:9:from django.db.models.fields import *
./db/models/__init__.py:10:from django.db.models.fields.related import *

Occurrences in magic-removal/docs, r2542:

$ grep -nr 'import \*' . | grep -v .svn
./generic_views.txt:34:    from django.conf.urls.defaults import *
./overview.txt:162:    from django.conf.urls.defaults import *
./static_files.txt:102:    from django.conf.urls.defaults import *
./syndication_feeds.txt:52:    from django.conf.urls.defaults import *
./syndication_feeds.txt:311:    from django.conf.urls.defaults import *
./tutorial03.txt:73:    from django.conf.urls.defaults import *
./tutorial03.txt:330:    from django.conf.urls.defaults import *
./tutorial04.txt:159:    from django.conf.urls.defaults import *
./tutorial04.txt:170:    from django.conf.urls.defaults import *
./url_dispatch.txt:56:    from django.conf.urls.defaults import *
./url_dispatch.txt:67:    * ``from django.conf.urls.defaults import *`` makes the ``patterns``
./url_dispatch.txt:170:Convention is to use ``from django.conf.urls.defaults import *`` at the top of
./url_dispatch.txt:259:    from django.conf.urls.defaults import *
./url_dispatch.txt:274:    from django.conf.urls.defaults import *
./url_dispatch.txt:296:    from django.conf.urls.defaults import *

[Adrian Holovaty]

(In [2683]) magic-removal: Fixed #1525 -- Got rid of a few 'import *' calls

[Adrian Holovaty]

IMO, the 'from django.conf.urls.defaults import *' lines are acceptable because of the savings of typing. I've changed the other import *'s, though.