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233 lines
9.8 KiB
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233 lines
9.8 KiB
Plaintext
================================
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Django 1.3 beta 1 release notes
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================================
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Welcome to Django 1.3 beta 1!
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This is the second in a series of preview/development releases leading
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up to the eventual release of Django 1.3. This release is primarily
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targeted at developers who are interested in trying out new features
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and testing the Django codebase to help identify and resolve bugs
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prior to the final 1.3 release.
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As such, this release is *not* intended for production use, and any such use
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is discouraged.
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What's new in Django 1.3 beta 1
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===============================
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Further tweaks to the staticfiles app
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Django 1.3 ships with a new contrib app :mod:`django.contrib.staticfiles`
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to help developers handle the static media files (images, CSS, JavaScript,
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etc.) that are needed to render a complete web page.
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The :mod:`~django.contrib.staticfiles` app ships with the ability to
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automatically serve static files during development (if the :setting:`DEBUG`
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setting is ``True``) when using the :djadmin:`runserver` management command.
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Based on feedback from the community this release adds two new options to the
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:djadmin:`runserver` command to modify this behavior:
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* ``--nostatic``: prevents the :djadmin:`runserver` command from serving
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files completely.
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* ``--insecure``: enables serving of static files even if running with
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:setting:`DEBUG` set to False. (This is **not** recommended!)
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See the :doc:`staticfiles reference documentation </ref/contrib/staticfiles>`
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for more details, or learn :doc:`how to manage static files
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</howto/static-files>`.
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Translation comments
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~~~~~~~~~~~~~~~~~~~~
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If you would like to give translators hints about a translatable string, you
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can add a comment prefixed with the ``Translators`` keyword on the line
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preceding the string, e.g.::
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def my_view(request):
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# Translators: This message appears on the home page only
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output = ugettext("Welcome to my site.")
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The comment will appear in the resulting .po file and should also be
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displayed by most translation tools.
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For more information, see :ref:`translator-comments`.
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Permissions for inactive users
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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If you provide a custom auth backend with ``supports_inactive_user`` set to
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``True``, an inactive user model will check the backend for permissions.
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This is useful for further centralizing the permission handling. See the
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:doc:`authentication docs </topics/auth/index>` for more details.
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Backwards-incompatible changes in 1.3 alpha 2
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=============================================
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Change to admin lookup filters
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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The Django admin has long had an undocumented "feature" allowing savvy
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users to manipulate the query string of changelist pages to filter the
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list of objects displayed. However, this also creates a security
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issue, as a staff user with sufficient knowledge of model structure
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could use this "feature" to gain access to information he or she would
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not normally have.
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As a result, changelist filtering now explicitly validates all lookup
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arguments in the query string, and permits only fields which are
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directly on the model, or relations explicitly permitted by the
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``ModelAdmin`` definition. If you were relying on this undocumented
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feature, you will need to update your ``ModelAdmin`` definitions to
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whitelist the relations you choose to expose for filtering.
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Introduction of STATIC_URL and STATIC_ROOT settings
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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The newly introduced :mod:`~django.contrib.staticfiles` app -- which extends
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Django's abilities to handle static files for apps and projects -- required the
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additon of two new settings to refer to those files in templates and code,
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especially in contrast to the :setting:`MEDIA_URL` and :setting:`MEDIA_ROOT`
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settings that refer to user-uploaded files.
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Prior to 1.3 alpha 2 these settings were called ``STATICFILES_URL`` and
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``STATICFILES_ROOT`` to follow the naming scheme for app-centric settings.
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Based on feedback from the community it became apparent that those settings
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created confusion, especially given the fact that handling static files is also
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desired outside the use of the optional :mod:`~django.contrib.staticfiles` app.
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As a result, we took the following steps to rectify the issue:
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* Two new global settings were added that will be used by, **but are not
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limited to**, the :doc:`staticfiles</ref/contrib/staticfiles>` app:
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* :setting:`STATIC_ROOT` (formally ``STATICFILES_ROOT``)
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* :setting:`STATIC_URL` (formally ``STATICFILES_URL``)
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* The ``django.contrib.staticfiles.templatetags.staticfiles.get_staticfiles_prefix``
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template tag was moved to Django's core (``django.templatetags.static``) and
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renamed to :ttag:`get_static_prefix`.
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* The ``django.contrib.staticfiles.context_processors.staticfiles``
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context processor was moved to Django's core
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(``django.core.context_processors.static``) and renamed to
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:func:`~django.core.context_processors.static`.
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* :ref:`form-media-paths` now uses :setting:`STATIC_URL` as the prefix
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**if the value is not None**, and falls back to the previously used
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:setting:`MEDIA_URL` setting otherwise.
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Changes to the login methods of the admin
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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In previous version the admin app defined login methods in multiple locations
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and ignored the almost identical implementation in the already used auth app.
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A side effect of this duplication was the missing adoption of the changes made
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in r12634_ to support a broader set of characters for usernames.
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This release refactors the admin's login mechanism to use a subclass of the
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:class:`~django.contrib.auth.forms.AuthenticationForm` instead of a manual
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form validation. The previously undocumented method
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``'django.contrib.admin.sites.AdminSite.display_login_form'`` has been removed
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in favor of a new :attr:`~django.contrib.admin.AdminSite.login_form`
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attribute.
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.. _r12634: https://code.djangoproject.com/changeset/12634
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Changes to ``USStateField``
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===========================
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The ``django.contrib.localflavor`` application contains collections
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of code relevant to specific countries or cultures. One such is
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``USStateField``, which provides a field for storing the two-letter postal
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abbreviation of a U.S. state. This field has consistently caused problems,
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however, because it is often used to store the state portion of a U.S postal
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address, but not all "states" recognized by the U.S Postal Service are
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actually states of the U.S. or even U.S. territory. Several
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compromises over the list of choices resulted in some users feeling
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the field supported too many locations, while others felt it supported
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too few.
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In Django 1.3 we're taking a new approach to this problem, implemented
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as a pair of changes:
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* The choice list for `USStateField` has changed. Previously, it
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consisted of the 50 U.S. states, the District of Columbia and
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U.S. overseas territories. As of Django 1.3 it includes all previous
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choices, plus the U.S. Armed Forces postal codes.
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* A new model field,
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``django.contrib.localflavor.us.models.USPostalCodeField``, has
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been added which draws its choices from a list of all postal
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abbreviations recognized by the U.S Postal Service. This includes
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all abbreviations recognized by `USStateField`, plus three
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independent nations -- the Federated States of Micronesia, the
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Republic of the Marshall Islands and the Republic of Palau -- which
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are serviced under treaty by the U.S. postal system. A new form
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widget, ``django.contrib.localflavor.us.forms.USPSSelect``, is
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also available and provides the same set of choices.
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Additionally, several finer-grained choice tuples are provided which
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allow mixing and matching of subsets of the U.S. states and
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territories, and other locations serviced by the U.S. postal
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system. Consult the ``django.contrib.localflavor`` documentation
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for more details.
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The change to `USStateField` is technically backwards-incompatible for
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users who expect this field to exclude Armed Forces locations. If you
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need to support U.S. mailing addresses without Armed Forces locations,
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see the list of choice tuples available in the localflavor
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documentation.
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The Django 1.3 roadmap
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======================
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Before the final Django 1.3 release, several other preview/development
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releases will be made available. The current schedule consists of at
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least the following:
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* Week of **January 24, 2011**: First Django 1.3 release
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candidate. String freeze for translations.
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* Week of **January 31, 2011**: Django 1.3 final release.
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If necessary, additional beta or release-candidate packages
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will be issued prior to the final 1.3 release. Django 1.3 will be
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released approximately one week after the final release candidate.
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What you can do to help
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=======================
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In order to provide a high-quality 1.3 release, we need your help. Although this
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beta release is, again, *not* intended for production use, you can help the
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Django team by trying out the beta codebase in a safe test environment and
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reporting any bugs or issues you encounter. The Django ticket tracker is the
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central place to search for open issues:
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* https://code.djangoproject.com/timeline
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Please open new tickets if no existing ticket corresponds to a problem you're
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running into.
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Additionally, discussion of Django development, including progress toward the
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1.3 release, takes place daily on the django-developers mailing list:
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* http://groups.google.com/group/django-developers
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... and in the ``#django-dev`` IRC channel on ``irc.freenode.net``. If you're
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interested in helping out with Django's development, feel free to join the
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discussions there.
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Django's online documentation also includes pointers on how to contribute to
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Django:
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* :doc:`How to contribute to Django </internals/contributing/index>`
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Contributions on any level -- developing code, writing documentation or simply
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triaging tickets and helping to test proposed bugfixes -- are always welcome and
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appreciated.
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