Still getting the rocket

Using Django Getting Started
1

I am doing the tutorial Part 1, creating app Polls: Writing your first Django app, part 1 | Django documentation | Django

I followed all the instructions down to the bottom of that tutorial page. Going to the URL

http://localhost:8000/polls

I should get the message

Hello, world. You’re at the polls index.

but I get the rocket ship instead.

2

Welcome @Mountainmark600 !

Couple things to check:

  • Did you stop and then restart the server?
  • If you stop the server and try to go to that page, what happens?
  • Did you verify that you have saved all the changes made?

If:

  • You have verified that the changes were made,
    and
  • Stopping and restarting the server doesn’t work,
    and
  • Stopping the server gives you an error message when trying to go to the site,

then:

  • Please post the contents of your settings.py,
    and
  • Post the contents of both of your urls.py files (both the one in your mysite directory and the one in your polls directory).

Side note, please do not post images of code. Copy / paste the contents of the files into the body of your post, marked as “preformatted text”.

1 Like
3

Thanks for the welcome Ken!

Answers to your questions:

  • Did you stop and then restart the server? Yes
  • If you stop the server and try to go to that page, what happens? Yes. Same thing happened.
  • Did you verify that you have saved all the changes made? Yes

Post the contents of both of your urls.py files (both the one in your mysite directory and the one in your polls directory).
Side note, please do not post images of code. Copy / paste the contents of the files into the body of your post, marked as “preformatted text”.
“”"

Here are the contents of my settings file:

Django settings for DjangoProject project.

Generated by 'django-admin startproject' using Django 5.2.

For more information on this file, see
https://docs.djangoproject.com/en/5.2/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/5.2/ref/settings/
"""

from pathlib import Path

# Build paths inside the project like this: BASE_DIR / 'subdir'.
BASE_DIR = Path(__file__).resolve().parent.parent


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/5.2/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'django-insecure-!7f(@xls3_v7c3$en-qn2hp#w4$7(kjt4%&x8+oy!@@jit8=+n'

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

ALLOWED_HOSTS = []


# Application definition

INSTALLED_APPS = [
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'polls.apps.PollsConfig'
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'DjangoProject.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [BASE_DIR / 'templates']
        ,
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'DjangoProject.wsgi.application'


# Database
# https://docs.djangoproject.com/en/5.2/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': BASE_DIR / 'db.sqlite3',
    }
}


# Password validation
# https://docs.djangoproject.com/en/5.2/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]


# Internationalization
# https://docs.djangoproject.com/en/5.2/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/5.2/howto/static-files/

STATIC_URL = 'static/'

# Default primary key field type
# https://docs.djangoproject.com/en/5.2/ref/settings/#default-auto-field

DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

Contents of urls.py file from mysite directory:

from django.contrib import admin
from django.urls import include, path

urlpatterns = [
    path("polls/", include("polls.urls")),
    path("admin/", admin.site.urls),
]

Contents of urls.py in polls directory:

from django.urls import path

from . import views

urlpatterns = [
    path("", views.index, name="index"),
]

I’m doing this in PyCharm. To be sure I am following the tutorial exactly, I deleted the Django project completely and recreated. I think I failed to edit both urls.py the first time.

Running the server from Windows Powershell now produces this error:

PS C:\Users\markb\PycharmProjects\DjangoProject> py manage.py runserver
Watching for file changes with StatReloader
Performing system checks...

Exception in thread django-main-thread:
Traceback (most recent call last):
  File "C:\Users\markb\AppData\Local\Programs\Python\Python313\Lib\site-packages\django\apps\registry.py", line 158, in get_app_config
    return self.app_configs[app_label]
           ~~~~~~~~~~~~~~~~^^^^^^^^^^^
KeyError: 'admin'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\markb\AppData\Local\Programs\Python\Python313\Lib\threading.py", line 1041, in _bootstrap_inner
    self.run()
    ~~~~~~~~^^
  File "C:\Users\markb\AppData\Local\Programs\Python\Python313\Lib\threading.py", line 992, in run
    self._target(*self._args, **self._kwargs)
    ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\markb\AppData\Local\Programs\Python\Python313\Lib\site-packages\django\utils\autoreload.py", line 64, in wrapper
    fn(*args, **kwargs)
    ~~^^^^^^^^^^^^^^^^^
  File "C:\Users\markb\AppData\Local\Programs\Python\Python313\Lib\site-packages\django\core\management\commands\runserver.py", line 134, in inner_run
    self.check(**check_kwargs)
    ~~~~~~~~~~^^^^^^^^^^^^^^^^
  File "C:\Users\markb\AppData\Local\Programs\Python\Python313\Lib\site-packages\django\core\management\base.py", line 492, in check
    all_issues = checks.run_checks(
        app_configs=app_configs,
    ...<2 lines>...
        databases=databases,
    )
  File "C:\Users\markb\AppData\Local\Programs\Python\Python313\Lib\site-packages\django\core\checks\registry.py", line 89, in run_checks
    new_errors = check(app_configs=app_configs, databases=databases)
  File "C:\Users\markb\AppData\Local\Programs\Python\Python313\Lib\site-packages\django\core\checks\urls.py", line 136, in check_custom_error_handlers
    handler = resolver.resolve_error_handler(status_code)
  File "C:\Users\markb\AppData\Local\Programs\Python\Python313\Lib\site-packages\django\urls\resolvers.py", line 732, in resolve_error_handler
    callback = getattr(self.urlconf_module, "handler%s" % view_type, None)
                       ^^^^^^^^^^^^^^^^^^^
  File "C:\Users\markb\AppData\Local\Programs\Python\Python313\Lib\site-packages\django\utils\functional.py", line 47, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
                                         ~~~~~~~~~^^^^^^^^^^
  File "C:\Users\markb\AppData\Local\Programs\Python\Python313\Lib\site-packages\django\urls\resolvers.py", line 711, in urlconf_module
    return import_module(self.urlconf_name)
  File "C:\Users\markb\AppData\Local\Programs\Python\Python313\Lib\importlib\__init__.py", line 88, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1387, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1331, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 935, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 1026, in exec_module
  File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
  File "C:\Users\markb\PycharmProjects\DjangoProject\DjangoProject\urls.py", line 23, in <module>
    path("admin/", admin.site.urls),
                   ^^^^^^^^^^^^^^^
  File "C:\Users\markb\AppData\Local\Programs\Python\Python313\Lib\site-packages\django\utils\functional.py", line 251, in inner
    self._setup()
    ~~~~~~~~~~~^^
  File "C:\Users\markb\AppData\Local\Programs\Python\Python313\Lib\site-packages\django\contrib\admin\sites.py", line 610, in _setup
    AdminSiteClass = import_string(apps.get_app_config("admin").default_site)
                                   ~~~~~~~~~~~~~~~~~~~^^^^^^^^^
  File "C:\Users\markb\AppData\Local\Programs\Python\Python313\Lib\site-packages\django\apps\registry.py", line 165, in get_app_config
    raise LookupError(message)
LookupError: No installed app with label 'admin'.
4

Compare this:

With this

INSTALLED_APPS = [
    "polls.apps.PollsConfig",
    "django.contrib.admin",
    "django.contrib.auth",
    "django.contrib.contenttypes",
    "django.contrib.sessions",
    "django.contrib.messages",
    "django.contrib.staticfiles",
]

Also, if you’re following the tutorial exactly,

should have been created as:
ROOT_URLCONF = 'mysite.urls'

which means you’ve either changed the name of the project, or have mis-edited a file.