服务器无法在hello world应用程序中启动

Question

I am trying to create a Django hello world app.

I have the following code:

import sys

from django.conf import settings
from django.http import HttpResponse

settings.configure(
    DEBUG=True,
    SECRET_KEY='badkey',
    ROOT_URLCONF=sys.modules[__name__],
)

def index(request):
    return HttpResponse('Hello, World')

urlpatterns = [
    (r'^hello-world/$', index),
]

Located at /smartQuiz/smartQuiz/hello.py , where smartQuiz is the root directory of my project.

If I run python hello.py runserver from the directory where hello.py is located, the server won't start.

What am I doing wrong?

Answer 1

You seem to be missing

 from django.conf.urls import url

Here is a full minimal example previously written by minigunnr on the Stack Overflow documentation:

This example shows you a minimal way to create a Hello World page in Django. This will help you realize that the django-admin startproject example command basically creates a bunch of folders and files and that you don't necessarily need that structure to run your project.

1. Create a file called file.py.

2. Copy and paste the following code in that file.

    import sys from django.conf import settings settings.configure( DEBUG=True, SECRET_KEY='thisisthesecretkey', ROOT_URLCONF=__name__, MIDDLEWARE_CLASSES=( 'django.middleware.common.CommonMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.middleware.clickjacking.XFrameOptionsMiddleware', ), ) from django.conf.urls import url from django.http import HttpResponse # Your code goes below this line. def index(request): return HttpResponse('Hello, World!') urlpatterns = [ url(r'^$', index), ] # Your code goes above this line if __name__ == "__main__": from django.core.management import execute_from_command_line execute_from_command_line(sys.argv) 

3. Go to the terminal and run the file with this command python file.py runserver .

4. Open your browser and go to 127.0.0.1:8000.

Answer 2

I see that you are trying to directly call hello.py with runserver as an argument. If you are writing and trying to test Django, make sure that you are using the framework to start the server. It will take care of all the 'Django stuff' required: python manage.py runserver manage.py takes care of setting things up for you.

Answer 3

I think you are doing it the wrong way. Use this link to know how to make a django app