#21018: Make consistent the significance of app ordering in INSTALLED_APPS
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Reporter: marfire | Owner: nobody
Type: Bug | Status: new
Component: Core (Other) | Version: 1.5
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Easy pickings: 0 | UI/UX: 0
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There are several subsystems that are affected by the order of the apps in
`INSTALLED_APPS`. These include (at least): templates, static files,
translations, and management commands. For the first three, the rule is
that the first listed app has precedence: it will be used in preference to
any app listed later that uses the same name for something (e.g. a
template, file, or translation).
In the case of management commands, however, the semantics are just the
opposite: precedence is given to apps that are listed later.
The proposal is to fix this so that management commands follow the same
ordering rules as the other subsystems. This is an easy fix, but it has
implications for backwards compatibility: specifically, for any project
that currently has two apps in `INSTALLED_APPS` that define the same
command, the one that is actually used will change. (Note that this does
not apply to the case of apps overriding core management commands; they
will continue to do so.)
See [https://groups.google.com/forum/#!topic/django-developers/r37clRaXgf4
here] for a discussion of the issue.
See #20914 for a proposal to document more thoroughly the issue of order
in `INSTALLED_APPS`.
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Ticket URL: <https://code.djangoproject.com/ticket/21018>
Django <https://code.djangoproject.com/>
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