#9482: Can't import anything that depends on DANGO_SETTINGS_MODULE in project's
`__init__.py` file.
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Reporter: mrmachine | Owner: nobody
Status: new | Milestone:
Component: Core framework | Version: 1.0
Keywords: DJANGO_SETTINGS_MODULE settings import | Stage: Unreviewed
Has_patch: 0 |
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I've got some basic code to register signal handlers in my project's
`__init__.py`, as this seems the only place certain (or as close to
certain as possible) to execute whenever Django is started with the
`runfcgi`, `runserver`, `shell`, etc. management commands.
For example, if I import `settings` from `django.conf`, or any other
module that relies on settings:
{{{
from django.conf import settings
if settings.DEBUG:
...
}}}
or:
{{{
from django.db import models
}}}
The following exception is raised:
{{{
ImportError: Settings cannot be imported, because environment variable
DJANGO_SETTINGS_MODULE is undefined.
}}}
The reason is because `django.core.management.setup_environ` adds
`DJANGO_SETTINGS_MODULE` to `os.environ` *after* importing the project
module.
As far as I can tell, the fix is easy. Just move the assignment to
`os.environ` up a few lines, before the import. I can't see how this could
possibly break any existing code, nor any reason *not* to do it. We're not
adding any code or functionality, just executing it earlier.
--
Ticket URL: <http://code.djangoproject.com/ticket/9482>
Django <http://code.djangoproject.com/>
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