[Solved] Django 500 error

[logdog]

Having problem getting Django app to work.

 

Did all the steps here http://www.heliohost.org/classic/features/languages/python

 

Is there anything that needs to be done to turn on Django/Python for the account?

Or, is there anyway to get some error output for troubleshooting?

 

My project name is h1

Creating a project you get an h1 dir and another one named h1 dir under it.

So location for dispatcher is

public_html/h1/h1/dispatcher.wsgi

 

have also created

public_html/h1/media/test.html

 

I tested the media exemption and it works fine, so I think there needs to be some extra h1 dirs in the .htaccess

similar to the inforiesgoserver/inforiesgoserver/... in this example:  https://www.helionet.org/index/topic/29558-django-project-not-working/

 

It appears that the filter regex is relative to the location of the .htaccess (../public_html/h1/)  and the target is relative to the account root (../public_html/)

 

Something like this:

RewriteEngine On

RewriteBase /

RewriteRule ^(media/.*)$ - [L]

RewriteRule ^(admin_media/.*)$ - [L]

RewriteRule ^(h1/dispatch\.wsgi/.*)$ - [L]

RewriteRule ^(.*)$ h1/h1/dispatch.wsgi/$1 [QSA,PT,L]

 

But, that does not work either.

 

 

Please advise.

 

[Flaze]

No, no. That's some old stuff there. Try here.

[leogama]

No, no. That's some old stuff there. Try here.

I had some troubles setting up Django yesterday, even after following this tutorial step-by-step. It turned out that there's an error in one of the code snippets.

 

In the example dispatch.wsgi file, where it shows:

# edit your username below
sys.path.append("/home/username_on_heliohost/public_html")

should be:

# edit your username below
sys.path.append("/home/username_on_heliohost/public_html/hello")

which is the Django project root directory. Otherwise, you'll get a 500 Internal Server Error response because Python can't find the application module (that is at "/home/username_on_heliohost/public_html/hello/hello").

 

Would you change the Django application to the website's root in the future, you should update this line accordingly and also move the .htaccess file to the root (without changes).

 

[logdog]

Thanks for the help.

The content in the wiki has a contradiction

 

On local host, you have  two hello dirs

../hello/manage.py

../hello/hello/dispatch.wsgi

 

The tree output (right after the allowed_hosts section of wiki) shows that the project content was uploaded directly to public_html/  So, the top level hello is not on heliohost

you have:

../public_html/manage.py

../public_html/hello/dispatch.wsgi

 

The contradiction comes in the .htaccess file in the wiki.  It shows two hello levels whereas there is only one on heliohost per the tree output.

RewriteRule ^(.*)$ hello/hello/dispatch.wsgi/$1 [QSA,PT,L]

 

@leogama, sounds like you got it working by not putting project content in your public_html.  In other words, you kept the top level "hello"

Can you share your tree view, .htaccess and dispatch.wsgi?

[leogama]

You're right, @logdog. The tutorial is contradictory in this regard.

 

This minimal setup worked for me (other files are not required):

$ tree public_html
public_html
├── django_test
│   ├── __init__.py
│   ├── dispatch.wsgi
│   ├── settings.py
│   ├── urls.py
│   ├── views.py
│   └── wsgi.py -> dispatch.wsgi
└── .htaccess

Files' content (__init__.py is empty):

 

.htaccess

RewriteEngine On
RewriteBase /
RewriteRule ^(media/.*)$ - [L]
RewriteRule ^(django_test/dispatch\.wsgi/.*)$ - [L]
RewriteRule ^(.*)$ django_test/dispatch.wsgi/$1 [QSA,PT,L]

dispatch.wsgi

import os, sys

# Change "username_on_heliohost" to the actual username
sys.path.append('/home/username_on_heliohost/public_html')

# More portable version
#from pathlib import Path
#sys.path.append(str(Path(__file__).parent.parent))

from django.core.wsgi import get_wsgi_application

os.environ['DJANGO_SETTINGS_MODULE'] = 'django_test.settings'

application = get_wsgi_application()

settings.py

SECRET_KEY = 'CHANGE THIS!'
ALLOWED_HOSTS = ['*']
ROOT_URLCONF = 'django_test.urls'

urls.py

from django.urls import path

from . import views

urlpatterns = [
    path('', views.index),
]

views.py

from django.http import HttpResponse

def index(request):
    return HttpResponse("Hello, World!")

Hope it helps

Edited March 1, 2020 by leogama

[Krydos]

If there's a problem with the wiki any HelioHost user can edit it. You can get your wiki account set up at https://www.helionet.org/index/topic/34285-wiki-access-requests/

[logdog]

Thanks @leogama.  I copied everything you did and it worked for me.  Now I have a base to try my app from.

 

RE: the wiki, I'm not sure what the best way to fix it is (one hello dir or two?)

[Krydos]

The reason the wiki has two hello directories is because that is the way the command

django-admin startproject hello

creates the code, and then you can upload it to the server by symlinking dispatch.wsgi and adding the .htaccess. Obviously it will work with other directory configurations.

[samuelss]

@leogama you are a legend! I'd been trying to get my darn website working for ages before finding your post.

Edited May 19, 2020 by samuelss