django -- 单独执行py文件报错django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet.

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愿你没有软肋，也不需要铠甲

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问题

今天需要将 Django 和一个单独的脚本进行交互，其中也要使用到Django本身的model，在单独执行这个脚本的时候报了错

C:\ProgramData\Anaconda3\python.exe "E:/1. django-project/UserAdmin/monitor_admin/cars_operation.py"
Traceback (most recent call last):
  File "E:/1. django-project/UserAdmin/monitor_admin/cars_operation.py", line 14, in 
    from monitor_admin.models import CarLogModel
  File "E:\1. django-project\UserAdmin\monitor_admin\models.py", line 6, in 
    from express_admin.models import Car
  File "E:\1. django-project\UserAdmin\express_admin\models.py", line 8, in 
    class Line(models.Model):
  File "C:\ProgramData\Anaconda3\lib\site-packages\django\db\models\base.py", line 100, in __new__
    app_config = apps.get_containing_app_config(module)
  File "C:\ProgramData\Anaconda3\lib\site-packages\django\apps\registry.py", line 244, in get_containing_app_config
    self.check_apps_ready()
  File "C:\ProgramData\Anaconda3\lib\site-packages\django\apps\registry.py", line 127, in check_apps_ready
    raise AppRegistryNotReady("Apps aren't loaded yet.")
django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet.

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解决方法

1. 在总项目的 urls.py 下加入

import os
import django

os.environ.setdefault("DJANGO_SETTINGS_MODULE", "UserAdmin.settings")
django.setup()

1. 在需要单独运行的脚本中导入此 urls.py文件

2. 完美解决

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