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Documented unicity rules in INSTALLED_APPS. 

Refs #12288, #21679.
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Aymeric Augustin 2014-01-01 16:48:16 +01:00
parent 2139e09d83
commit 8a2f304a79
1 changed files with 23 additions and 10 deletions
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docs/ref/settings.txt
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@ -1286,9 +1286,12 @@ INSTALLED_APPS
Default: ``()`` (Empty tuple)
A tuple of strings designating all applications that are enabled in this
Django installation. Each string should be a full Python path to an
application configuration class or to a Python package containing a
application. :doc:`Learn more about applications </ref/applications>`.
Django installation. Each string should be a dotted Python path to:
* an application configuration class, or
* a package containing a application.
:doc:`Learn more about application configurations </ref/applications>`.
.. versionchanged:: 1.7
@ -1296,15 +1299,25 @@ application. :doc:`Learn more about applications </ref/applications>`.
.. admonition:: Use the application registry for introspection
Your code should never access :setting:`INSTALLED_APPS` directly. Use the
app registry, :attr:`django.apps.apps`, instead.
Your code should never access :setting:`INSTALLED_APPS` directly. Use
:attr:`django.apps.apps` instead.
.. admonition:: Application labels must be unique
.. admonition:: Application names and labels must be unique in
:setting:`INSTALLED_APPS`
Application labels (that is, the final part of the dotted path to
application packages) *must* be unique in :setting:`INSTALLED_APPS`.
For example, you can't include both ``django.contrib.auth`` and
``myproject.auth``.
Application :attr:`names <django.apps.AppConfig.name>` — the dotted Python
path to the application package — must be unique. There is no way to
include the same application twice, short of duplicating its code under
another name.
Application :attr:`labels <django.apps.AppConfig.label>` — by default the
final part of the name — must be unique too. For example, you can't
include both ``django.contrib.auth`` and ``myproject.auth``. However, you
can relabel an application with a custom configuration that defines a
different :attr:`~django.apps.AppConfig.label`.
These rules apply regardless of whether :setting:`INSTALLED_APPS`
references application configuration classes on application packages.
.. setting:: INTERNAL_IPS