Django.db.backends.postgresql error when try to makemigrations my django project

I am trying to switch my Django database from SQLite3 to PostgreSQl, so I follow many tutorials to install and setup Postgres with Django project.

I did the following: pip install psycopg2, pip install psycopg2-binary and I modified the settings.py like that:

DATABASES = {

    'default': {

        'ENGINE': 'django.db.backends.postgresql',

        'NAME': BASE_DIR / 'db.postgresql',

        'USER': 'muusername',

        'PASSWORD': 'mypassword',

        'HOST': '127.0.0.1',

        'PORT': '5432'

    }

}

Finally I maked my database, by running the command python manage.py makemigrations. However, I got this error:

django.core.exceptions.ImproperlyConfigured: 'django.db.backends.postgresql' isn't an available database backend or couldn't be imported. Check the above exception. To use one of the built-in backends, use 'django.db.backends.XXX', where XXX is one of:
    'mysql', 'oracle', 'sqlite3'

Please note that I am also seccesufully install the pgAdmin in my OS which is Windows 10 in a first step.

I know that the problem is related by configuration of Postgres in my django project, but I don't know how to fix it, also I checked my djnago version which is the latest one, also, all needed packages are installed in my venv.

You cannot add like this in postgres:

'NAME': BASE_DIR / 'db.postgresql', #You got that error because of this. This setting is for only sqlite3 not for postgres

Just add db_name in NAME:

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql_psycopg2',
        'NAME': 'your_db_name', #add your db name here
        'USER': 'postgres',
        'PASSWORD': 'your_db_password',
        'HOST': '127.0.0.1', 
        'PORT': '5432',
    }
}

Make sure you have actually downloaded the PostgreSQL installer itself and installed it.

I solve this problem by just upgrade the django, as you can see here in the exception:

django.core.exceptions.ImproperlyConfigured: 'django.db.backends.postgresql' isn't an available database backend or couldn't be imported. Check the above exception. To use one of the built-in backends, use 'django.db.backends.XXX', where XXX is one of:
'mysql', 'oracle', 'sqlite3'

Django ask the user to use mysql, oracle or sqlite3, but not the case of postgresql. So this exception will be fixed when the user upgrade the django version.

I hope this answer can be helpful for someone another.

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