Unable log in to the django admin page with a valid username and password

I don’t believe the admin password is stored in the settings.py file. It’s created when you first syncdb. I am thinking you either skipped creating the superuser or just made a typo.
Try running in terminal at your projects root.:

python django-admin.py createsuperuser

That will allow you to retype your admin login. Also seen here https://docs.djangoproject.com/en/dev/ref/django-admin/

Disclaimer: I cannot add comments yet, so I have to ask clarification here proposing a solution at the same time. Sorry for that.

Is the user logged-out immediately after logging-in? something like this issue

You can check it in many ways, I suggest to add a hook to the logout signal (you can put it in your models.py):

from django.contrib.auth.signals import user_logged_out

def alertme(sender, user, request, **kwargs):
    print ("USER LOGGED OUT!") #or more sophisticate logging

user_logged_out.connect(alertme)

then try to log in and check if the message appears in your console. If it appears, then you have to check if you have a redirect or a customized template calling logout after login. Hope it helps you find the issue.

I’m not exactly sure, but the problem might be with your URL configuration, concretely in these two lines:

(r'^admin/', include(admin.site.urls)),  
(r'^sites/', include("myproject.sites.urls")),

A longer time ago, I had trouble with browsing the admin of my Django project because a single URL configuration overwrote a part of the admin url. It seems that Django doesn’t like it when you specify a custom URL configuration that contains elements which are also part of the admin URL. In your case, you have the app django.contrib.sites enabled in your settings.py. You can access the admin panel of this app by going to http://127.0.0.1:8000/admin/sites/. It might be that your URL configuration with r'^sites/' in it overrides a part of the admin url. Try renaming this specific URL configuration or disable django.contrib.sites in INSTALLED_APPS for testing purposes.

Please note that this is just an assumption. All I know is that Django’s admin panel is a bit picky about URL configurations using similar names like its own URLs. I cannot test it myself at the moment. But maybe this helps you a bit.

sounds like a session problem because after the post you get redirected and immediately the system has forgotten that you logged in.

try the following:

1. check your session backend is working.
2. swap it with cache backend if you use db cache backend to check if transaction middleware is messing around.
3. try db backend and check if there are sessions stored in the db table

>>> from django.contrib.auth import authenticate
>>> u = authenticate(username="user", password="pass")
>>> u.is_staff = True
>>> u.is_superuser = True

Is there something else I'm missing?

u.is_active should be True

Checking some other articles on this topic, it could be related to sys.path. Can you check and compare sys.path when running the dev server and when running WSGI.

For some details, have a look this and that article. But I would check the sys.path first, before going into the details of this article.

Did you try by creating the user with :

python manage.py createsuperuser

I have the same issue when I create the db on a test machine and migrate it to the deployment server…

Check that you have at least one site to work with.

>>> from django.contrib.sites.models import Site
>>> Site.objects.count()
(0.048) SELECT COUNT(*) FROM `django_site`; args=()
1

If you see 0 here – create one.

We had a similar issue in our app and these might help:

1. Use cleanup command to clear older sessions from django_sessions

2. Check the cookie size in firefox(firebug) or chrome developer tools. Because messaging is enabled by default in admin(django.contrib.messages.middleware.MessageMiddleware), the cookie size sometimes get larger than 4096 bytes with multiple edits and deletes. One quick test is to delete the “message” cookie and see if you can login after that.

And we actually ended up switching to nginx/uwsgi route because of this and other memory related issues with apache. Haven’t seen this repeated in nginx since.

I had same problem and it was just solved after restarting server :

systemctl restart nginx

You can ensure, the created user has been flagged as Is_staff = True, I sometimes forget to flag this to allow users to login to django admin

I had a related issue where I’d try to log in and the page would hang before the socket would eventually be killed. It turned out that I was indeed being logged in, but one of the login signal processors was freezing.

Celery couldn’t pass its asynchronous tasks to RabbitMQ because the RabbitMQ server wasn’t able to start.

For me, I could not login to the admin page in firefox but could login in chrome.
The problem was that I had CSRF_COOKIE_PATH set in my settings.py.
Never use that. It does not not work properly on django 1.8.

I had this problem. The issue is that in production I set two variables to True that allowed me to connect to the site using https.

SESSION_COOKIE_SECURE and CSRF_COOKIE_SECURE should be set to False if you are developing on localhost http. Changing these two variables to False allowed me to sign into the admin site when developing locally.

Make sure your database user table having following entry is true:

is_staff  => True  (if exit).
is_active  => True .
is_superuser => True.

After not being able to log in myself, I saw in the comment above someone mentioned about removing non-standard settings.

Adding this to my local settings solved it for me

SESSION_COOKIE_SECURE = False

Use some other virtual environment.it worked for me when i used conda environment.

What I did was to navigate manually to the url I wanted to visit.
So like: http://wildlifeapi.herokuapp.com/admin/ was returning the awful Heroku application error.

So what I did was to visit http://wildlifeapi.herokuapp.com/admin/api/animal/ and BINGO! it worked.

The funny thing is that it works well on my phone. It’s probably a django redirection bug.

My issue was that My Admin Page was not loading and not working. Here is what I did:

pip uninstall django
pip install django==2.2

For more Detail Check Django Documentation.

For anyone who encountered this problem after upgrading Django, the problem could be that the signature of the authenticate function has changed at some point. If the signature doesn’t match what’s expected, the backend is just ignored. So make sure your custom authentication backend authenticate method looks like this:

class EmailUsernameAuthenticationBackend(ModelBackend):
    def authenticate(self, request, username=None, password=None, **kwargs):
       # ...

And NOT like this (without the request argument):

class EmailUsernameAuthenticationBackend(ModelBackend):
    def authenticate(self, username=None, password=None, **kwargs):

This is not OP’s issue, but I am posting this answer in the hopes someone may have gone down the same path as I and arrived at this question as a result.

I came back to an old codebase after a year and was denied access to the admin panel despite all of the usual checks passing (user is present, nothing looks incorrect in the database, all debug modes are on, etc). Unfortunately, I had forgotten that the admin sign in page was not at the usual /admin route, but rather at an alternate route. The /admin page was a fake sign in page that always resulted in a failed sign in.

This setup was created using the app django-admin-honeypot.

A bit late for the party, but to me it was different and surprinsingly simpler: for whatever reason my superuser account was gone so, obviously, the solution was I had to create it again.
I’m 99% sure I had executed migrate and makemigrations a few times after having created my superuser, but go figure…

It took me about a whole hour to finally figure it out, however. None of the variables discussed here existed in my settings.py -and still don’t to the present moment- (probably because it has been nearly 10 years, so things might have changed considerably), like SESSION_ENGINE, SESSION_COOKIE_DOMAIN, CACHE_BACKEND, django_session table…
Also, Django’s FAQ on this subject mentions checking if my account is_active and is_staff, but unfortunately without ever mentioning how to do it.

For my case it is always the issue with SESSION_COOKIE_DOMAIN:
On local machine I set it like:

SESSION_COOKIE_DOMAIN = 'localhost'

On remote one, domain one, like:

SESSION_COOKIE_DOMAIN = 'yourdomainname.com'

In my case, I was not able to log in because I was using email in the place of username (which in my case was "admin") to try to log in. So do ensure you’re using the right username and password to log in

For me below settings worked on localhost

AUTHENTICATION_BACKENDS = [
   'django.contrib.auth.backends.ModelBackend',
]

SESSION_COOKIE_DOMAIN = None
SESSION_ENGINE = 'django.contrib.sessions.backends.db'