Django 尝试运行服务器时出现运行时错误

Question

I am trying to run my Django server via 'python manage.py runserver' on a github repository i cloned and always get this runtime error message:

class AbstractBaseUser(models.Model):

RuntimeError: ____class____ not set defining 'AbstractBaseUser' as <'class 'django.contrib.auth.base_user.AbstractBaseUser'>. Was ____classcell____ propagated to type.____new____?

Details of installed packages in my virtual environment are: Django 1.9 | django-crispy-forms 1.6.0 | django-markdown-deux 1.0.5 | django-pagedown 0.1.1 | markdown2 2.3.1 | olefile 0.46 | Pillow 7.1.1 | pip 19.2.3 | setuptools 41.2.0 |

I am using python version 3.8.1

please does anyone have any suggestions on how to solve this error. Thank you.

Answer 1

First of all, you should try to update your packages to the latest versions, as you are using python 3.8. Check this also: https://docs.djangoproject.com/en/3.0/faq/install/#what-python-version-can-i-use-with-django I don't think Django 1.9 is compatible with python 3.8

Answer 2

RuntimeError at /save You called this URL via POST, but the URL doesn't end in a slash and you have APPEND_SLASH set. Django can't redirect to the slash URL while maintaining POST data. Change your form to point to 127.0.0.1:8000/save/ (note the trailing slash), or set APPEND_SLASH=False in your Django settings.