I was using a Windows system, after installed environment, other tests and temporary not found the problem, but I stuck in creating python manage. Py createsuperuser here, when I successfully create a superuser, running python manage. Py runserver then executes, visit http://127.0.0.1:8000/admin, enter the superuser user name and password, always can't log in, then the server is disconnected, this is the reason why, in a number of ways are unable to solve, a great god, please grant instruction!!!