I have some stuff in settings.py that I&#39;d like to be able to access from a template, but I can&#39;t figure out how to do it. I already tried

    {{CONSTANT_NAME}}

but that doesn&#39;t seem to work. Is this possible?

Can I access constants in settings.py from templates in Django?

This is a very beginner question.  But I&#39;m stumped.  How do I reference a Django settings variable in my model.py?

    NameError: name &#39;PRIVATE_DIR&#39; is not defined

Also tried a lot of other stuff including `settings.PRIVATE_DIR`


**settings.py:**

    PRIVATE_DIR = &#39;/home/me/django_projects/myproject/storage_dir&#39;

**models.py:**

    # Problem is here.
    from django.core.files.storage import FileSystemStorage
    
    fs = FileSystemStorage(location=PRIVATE_DIR)

    class Customer(models.Model): 
        lastName = models.CharField(max_length=20) 
        firstName = models.CharField(max_length=20) 
        image = models.ImageField(storage=fs, upload_to=&#39;photos&#39;, blank=True, null=True)


What&#39;s the correct way to do this?

How do I reference a Django settings variable in my models.py?

I was trying to configure my Django project to deploy to Heroku. I am getting the following error and I don&#39;t really know how to fix it. 

Here is the **full traceback** and error:


    22:46:15 web.1  | Traceback (most recent call last):
    22:46:15 web.1  |   File &quot;/Users/nir/nirla/venv/lib/python2.7/site-packages/gunicorn/arbiter.py&quot;, line 495, in spawn_worker
    22:46:15 web.1  |     worker.init_process()
    22:46:15 web.1  |   File &quot;/Users/nir/nirla/venv/lib/python2.7/site-packages/gunicorn/workers/base.py&quot;, line 106, in init_process
    22:46:15 web.1  |     self.wsgi = self.app.wsgi()
    22:46:15 web.1  |   File &quot;/Users/nir/nirla/venv/lib/python2.7/site-packages/gunicorn/app/base.py&quot;, line 114, in wsgi
    22:46:15 web.1  |     self.callable = self.load()
    22:46:15 web.1  |   File &quot;/Users/nir/nirla/venv/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py&quot;, line 62, in load
    22:46:15 web.1  |     return self.load_wsgiapp()
    22:46:15 web.1  |   File &quot;/Users/nir/nirla/venv/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py&quot;, line 49, in load_wsgiapp
    22:46:15 web.1  |     return util.import_app(self.app_uri)
    22:46:15 web.1  |   File &quot;/Users/nir/nirla/venv/lib/python2.7/site-packages/gunicorn/util.py&quot;, line 354, in import_app
    22:46:15 web.1  |     __import__(module)
    22:46:15 web.1  |   File &quot;/Users/nir/nirla/nirla/wsgi.py&quot;, line 12, in &lt;module&gt;
    22:46:15 web.1  |     from dj_static import Cling
    22:46:15 web.1  |   File &quot;/Users/nir/nirla/venv/lib/python2.7/site-packages/dj_static.py&quot;, line 7, in &lt;module&gt;
    22:46:15 web.1  |     from django.contrib.staticfiles.handlers import StaticFilesHandler as DebugHandler
    22:46:15 web.1  |   File &quot;/Users/nir/nirla/venv/lib/python2.7/site-packages/django/contrib/staticfiles/handlers.py&quot;, line 8, in &lt;module&gt;
    22:46:15 web.1  |     from django.contrib.staticfiles.views import serve
    22:46:15 web.1  |   File &quot;/Users/nir/nirla/venv/lib/python2.7/site-packages/django/contrib/staticfiles/views.py&quot;, line 13, in &lt;module&gt;
    22:46:15 web.1  |     from django.views import static
    22:46:15 web.1  |   File &quot;/Users/nir/nirla/venv/lib/python2.7/site-packages/django/views/static.py&quot;, line 96, in &lt;module&gt;
    22:46:15 web.1  |     template_translatable = ugettext_noop(&quot;Index of %(directory)s&quot;)
    22:46:15 web.1  |   File &quot;/Users/nir/nirla/venv/lib/python2.7/site-packages/django/utils/translation/__init__.py&quot;, line 65, in gettext_noop
    22:46:15 web.1  |     return _trans.gettext_noop(message)
    22:46:15 web.1  |   File &quot;/Users/nir/nirla/venv/lib/python2.7/site-packages/django/utils/translation/__init__.py&quot;, line 52, in __getattr__
    22:46:15 web.1  |     if settings.USE_I18N:
    22:46:15 web.1  |   File &quot;/Users/nir/nirla/venv/lib/python2.7/site-packages/django/conf/__init__.py&quot;, line 54, in __getattr__
    22:46:15 web.1  |     self._setup(name)
    22:46:15 web.1  |   File &quot;/Users/nir/nirla/venv/lib/python2.7/site-packages/django/conf/__init__.py&quot;, line 47, in _setup
    22:46:15 web.1  |     % (desc, ENVIRONMENT_VARIABLE))
    22:46:15 web.1  | ImproperlyConfigured: Requested setting USE_I18N, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings.

Here is my **wsgi.py** file:

    import os
    from django.core.wsgi import get_wsgi_application
    from dj_static import Cling
    
    os.environ.setdefault(&quot;DJANGO_SETTINGS_MODULE&quot;, &quot;nirla.settings&quot;) #nirla is the name of the project
    
    
    application = Cling(get_wsgi_application())


And in case it was relevant, my **manage.py** file: 

    import os
    import sys
    
        if __name__ == &quot;__main__&quot;:
            os.environ.setdefault(&quot;DJANGO_SETTINGS_MODULE&quot;, &quot;nirla.settings&quot;)
        
            from django.core.management import execute_from_command_line
        
            execute_from_command_line(sys.argv)


Can anyone seem to understand the issue here? And if so, can you be so kind as to explain what is wrong? 

ImproperlyConfigured: You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings

I&#39;m new to Python and Django.

I&#39;m configuring a Django project using a PostgreSQL database engine backend, But I&#39;m getting errors on each database operation. For example when I run `manage.py syncdb`, I&#39;m getting:

	C:\xampp\htdocs\djangodir&gt;python manage.py syncdb
	Traceback (most recent call last):
	  File &quot;manage.py&quot;, line 11, in &lt;module&gt;
		execute_manager(settings)
	  File &quot;C:\Python27\lib\site-packages\django\core\management\__init__.py&quot;, line
	438, in execute_manager
		utility.execute()
	  File &quot;C:\Python27\lib\site-packages\django\core\management\__init__.py&quot;, line
	379, in execute
		self.fetch_command(subcommand).run_from_argv(self.argv)
	  File &quot;C:\Python27\lib\site-packages\django\core\management\__init__.py&quot;, line
	261, in fetch_command
		klass = load_command_class(app_name, subcommand)
	  File &quot;C:\Python27\lib\site-packages\django\core\management\__init__.py&quot;, line
	67, in load_command_class
		module = import_module(&#39;%s.management.commands.%s&#39; % (app_name, name))
	  File &quot;C:\Python27\lib\site-packages\django\utils\importlib.py&quot;, line 35, in im
	port_module
		__import__(name)
	  File &quot;C:\Python27\lib\site-packages\django\core\management\commands\syncdb.py&quot;
	, line 7, in &lt;module&gt;
		from django.core.management.sql import custom_sql_for_model, emit_post_sync_
	signal
	  File &quot;C:\Python27\lib\site-packages\django\core\management\sql.py&quot;, line 6, in
	 &lt;module&gt;
		from django.db import models
	  File &quot;C:\Python27\lib\site-packages\django\db\__init__.py&quot;, line 77, in &lt;modul
	e&gt;
		connection = connections[DEFAULT_DB_ALIAS]
	  File &quot;C:\Python27\lib\site-packages\django\db\utils.py&quot;, line 92, in __getitem
	__
		backend = load_backend(db[&#39;ENGINE&#39;])
	  File &quot;C:\Python27\lib\site-packages\django\db\utils.py&quot;, line 33, in load_back
	end
		return import_module(&#39;.base&#39;, backend_name)
	  File &quot;C:\Python27\lib\site-packages\django\utils\importlib.py&quot;, line 35, in im
	port_module
		__import__(name)
	  File &quot;C:\Python27\lib\site-packages\django\db\backends\postgresql\base.py&quot;, li
	ne 23, in &lt;module&gt;
		raise ImproperlyConfigured(&quot;Error loading psycopg module: %s&quot; % e)
	django.core.exceptions.ImproperlyConfigured: Error loading psycopg module: No mo
	dule named psycopg

Can someone give me a clue on what is going on?

How to set up a PostgreSQL database in Django

I&#39;m reading up that most people do `from django.conf import settings` but I don&#39;t undertstand the difference to simply doing `import settings` in a django project file. Can anyone explain the difference?

What&#39;s the difference between `from django.conf import settings` and `import settings` in a Django project

What is the basic difference between the following import statements in a Django app?

    import settings

and

    from django.conf import settings




Is there any difference between django.conf.settings and import settings?

The release notes say:

&gt; Django 1.3 adds framework-level
&gt; support for Python’s logging module.

That&#39;s nice. I&#39;d like to take advantage of that.  Unfortunately [the documentation][1] doesn&#39;t hand it all to me on a silver platter in the form of complete working example code which demonstrates how simple and valuable this is.

How do I set up this funky new feature such that I can pepper my code with

    logging.debug(&#39;really awesome stuff dude: %s&#39; % somevar)


  [1]: http://docs.djangoproject.com/en/1.11/topics/logging/

and see the file &quot;/tmp/application.log&quot; fill up with

    18:31:59 Apr 21 2011 awesome stuff dude: foobar
    18:32:00 Apr 21 2011 awesome stuff dude: foobar
    18:32:01 Apr 21 2011 awesome stuff dude: foobar

What&#39;s the difference between the default Python logging and this &#39;framework-level support&#39;?

Simple Log to File example for django 1.3+

For the life of me, I have been looking for this everywhere and have not found the answer. I hope I am not posting a duplicate.

It is advised everywhere that you should keep your secret keys in a separate file from your general settings.py. Also, that you should never commit your &quot;secret.py&quot; file that contains keys such as SECRET_KEY, AWS_SECRET_KEY and so on. 

My question is: In your production server, you need to reference your secret keys, that means that your &quot;secret.py&quot; settings file, should live somewhere around the server right? If so, how do you protect your secret keys in production? 

Where to store secret keys DJANGO

I&#39;m configuring a Django project that were using the server filesystem for storing the apps static files (`STATIC_ROOT`) and user uploaded files (`MEDIA_ROOT`).

I need now to host all that content on Amazon&#39;s S3, so I have created a bucket for this. Using [`django-storages`](http://readthedocs.org/docs/django-storages/en/latest/) with the `boto` storage backend, I managed to upload collected statics to the S3 bucket:

    MEDIA_ROOT = &#39;/media/&#39;
    STATIC_ROOT = &#39;/static/&#39;
    
    DEFAULT_FILE_STORAGE = &#39;storages.backends.s3boto.S3BotoStorage&#39;
    AWS_ACCESS_KEY_ID = &#39;KEY_ID...&#39;
    AWS_SECRET_ACCESS_KEY = &#39;ACCESS_KEY...&#39;
    AWS_STORAGE_BUCKET_NAME = &#39;bucket-name&#39;
    STATICFILES_STORAGE = &#39;storages.backends.s3boto.S3BotoStorage&#39;

Then, I got a problem: the `MEDIA_ROOT` and `STATIC_ROOT` are not used within the bucket, so the bucket root contains both the static files and user uploaded paths.

So then I could set:

    S3_URL = &#39;http://s3.amazonaws.com/%s&#39; % AWS_STORAGE_BUCKET_NAME
    STATIC_URL = S3_URL + STATIC_ROOT
    MEDIA_URL = &#39;S3_URL + MEDIA_ROOT

And use those settings in the templates, but there is no distinction of static/media files when storing in S3 with `django-storages`.

How this can be done?

Thanks!

How to set-up a Django project with django-storages and Amazon S3, but with different folders for static files and media files?

By default after login django redirects the user to an accounts/profile page or if you edit the LOGIN_REDIRECT_URL you can send the user to another page you specify in the settings.py.
 
This is great but I would like the user (after login) to be redirected to a custom page where the link to that page would look something like this: `mysite.com/username`. So the default accounts/profile or the LOGIN_REDIRECT_URL settings would not work in this case since both are somehow static. In my case the `username` section of the address changes for every user. 

Any ideas how I can make it so when the user is logged in would go to a custom user page that has user&#39;s name in the address like:  `mysite.com/username` ? Any input is truly appreciated. 
 



Django - after login, redirect user to his custom page --&gt; mysite.com/username

I am setting up my own Django server using this [Digital Ocean tutorial][1]. I created the Django framework following each step, and ran the server using this command:

    ./manage.py runserver 0.0.0.0:8000

When I tried to visit the IP at port 8000, the following error was shown:

    DisallowedHost at /
    Invalid HTTP_HOST header: &#39;XXX.XXX.XXX.XXX:8000&#39;. You may need to add u&#39;XXX.XXX.XXX.XXX&#39; to ALLOWED_HOSTS.
(IP substituted with X&#39;s)

Why is this happening?
 
  [1]: https://www.digitalocean.com/community/tutorials/how-to-set-up-django-with-postgres-nginx-and-gunicorn-on-ubuntu-14-04

Why is Django throwing error &quot;DisallowedHost at /&quot;?

I get this error when setting up a server in Django. It is sqlite3 which means it should create the .db file but it doesn&#39;t seem to be doing so. I&#39;ve stipulated SQLite as the backend and an absolute file path for where to put it, but no luck.

Is this a bug or am I doing something incorrect? (Was just thinking, is the absolute file path specified differently in Ubuntu?)

Here is the beginning of my settings.py file:


    # Django settings for OmniCloud project.

    DEBUG = True
    TEMPLATE_DEBUG = DEBUG

    ADMINS = (
    # (&#39;Your Name&#39;, &#39;your_email@example.com&#39;),
    )

    MANAGERS = ADMINS

    DATABASES = {
    &#39;default&#39;: {
        &#39;ENGINE&#39;: &#39;django.db.backends.sqlite3&#39;, # Add &#39;postgresql_psycopg2&#39;, &#39;postgresql&#39;, &#39;mysql&#39;, &#39;sqlite3&#39; or &#39;oracle&#39;.
        &#39;NAME&#39;: &#39;~/Harold-Server/OmniCloud.db&#39;,                      # Or path to database file if using sqlite3.
        &#39;USER&#39;: &#39;&#39;,                      # Not used with sqlite3.
        &#39;PASSWORD&#39;: &#39;&#39;,                  # Not used with sqlite3.
        &#39;HOST&#39;: &#39;&#39;,                      # Set to empty string for localhost. Not used with sqlite3.
        &#39;PORT&#39;: &#39;&#39;,                      # Set to empty string for default. Not used with sqlite3.
    }
    }


sqlite3.OperationalError: unable to open database file

this is somewhat related to this question  
https://stackoverflow.com/questions/11238514/why-is-djangos-settings-object-a-lazyobject

In my django project i have several applications. Each application can have its own non-trivial settings file.

    proj/
        proj/
             settings.py
        app/
             settings.py
             views.py

What is the general best practice here?  
should app/settings.py do   

    from django.conf import settings
    APP_SETTING= lambda: settings.getattr(&#39;APP_SETTING&#39;, &#39;custom_value&#39;)
    PROJ_SETTING= lambda: settings.PROJ_SETTING

and then in app/views.py do

    import .settings 
    X = settings.APP_SETTING
    Y = settings.PROJ_SETTING

or should I be modifying the django lazy settings object in app/settings.py as per the django coding style?

    from django.conf import settings
    # not even sure how I would check for a default value that was specified in proj/settings.py
    settings.configure(APP_SETTING=&#39;custom_value&#39;)

and then each app/views.py just consumes proj/settings.py via django.conf settings?

    from django.conf import settings
    X = settings.APP_SETTING
    Y = settings.PROJ_SETTING


There are obviously quite a few other permutations but I think my intent is clear.  
Thanks in advance.




django settings per application - best practice?

I am able to upload the files to media folder( `&#39;/peaceroot/www/media/&#39;`) that I have set up in `settings.py` as below


    MEDIA_ROOT = &#39;/peaceroot/www/media/&#39;
    MEDIA_URL = &#39;/media/&#39;

But through admin I tried to access the uploaded image file

http://localhost:8000/media/items/1a39246c-4160-4cb2-a842-12a1ffd72b3b.jpg

then I am getting 404 error. 

The file exists at `peaceroot/www/media/items/1a39246c-4160-4cb2-a842-12a1ffd72b3b.jpg`

All Django Settings Solutions on Gang of Coders

Total of 14 Django Settings Solutions