Like I said, in older versions of Django, that variable used to be named
MIDDLEWARE_CLASSES, if I create a Django project with Python 3.7 and Django
2.2.3, its MIDDLEWARE but Python 3.8 and Django 2.2.3 its named
MIDDLEWARE_CLASSES which on running python manage.py runserver fails. Here
is the traceback:
Exception in thread django-main-thread:
Traceback (most recent call last):
File "/usr/local/lib/python3.8/threading.py", line 923, in
_bootstrap_inner
self.run()
File "/usr/local/lib/python3.8/threading.py", line 865, in run
self._target(*self._args, **self._kwargs)
File
"/home/pystar/.local/share/virtualenvs/del-wUbba1cG/lib/python3.8/site-packages/django/utils/autoreload.py",
line 54, in wrapper
fn(*args, **kwargs)
File
"/home/pystar/.local/share/virtualenvs/del-wUbba1cG/lib/python3.8/site-packages/django/core/management/commands/runserver.py",
line 117, in inner_run
self.check(display_num_errors=True)
File
"/home/pystar/.local/share/virtualenvs/del-wUbba1cG/lib/python3.8/site-packages/django/core/management/base.py",
line 436, in check
raise SystemCheckError(msg)
django.core.management.base.SystemCheckError: SystemCheckError: System
check identified some issues:
ERRORS:
?: (admin.E408) 'django.contrib.auth.middleware.AuthenticationMiddleware'
must be in MIDDLEWARE in order to use the admin application.
?: (admin.E409) 'django.contrib.messages.middleware.MessageMiddleware' must
be in MIDDLEWARE in order to use the admin application.
?: (admin.E410) 'django.contrib.sessions.middleware.SessionMiddleware' must
be in MIDDLEWARE in order to use the admin application.
On Mon, Jul 15, 2019 at 12:27 PM Curtis Maloney <[email protected]> wrote:
> On Mon, 15 Jul 2019, at 21:23, Curtis Maloney wrote:
>
> First for everyone reading, it's important to note that Python 3.8 hasn't
> been released yet.
>
>
> To elaborate on this point - it's _close_ to release, so it's valuable to
> see how Django behaves with it.
>
> --
> C
>
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