Python RemovedInDjango19Warning：模型未声明显式 app_label
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RemovedInDjango19Warning: Model doesn't declare an explicit app_label
提问by All ?? Vаи?тy
Have gone through
经历过
Django 1.9 deprecation warnings app_label
but answers couldn't fix my problem, so asking again.
但答案无法解决我的问题，所以再次询问。
I have an app that is added to INSTALLED_APPS in settings.
我有一个在设置中添加到 INSTALLED_APPS 的应用程序。
when ever I run manage.py runserver, I get this warning,
每当我跑步时manage.py runserver，我都会收到此警告，
[trimmed path to project]/catalog/models.py:9: RemovedInDjango19Warning: Model class catalog.models.Category doesn't declare an explicit app_label and either isn't in an application in INSTALLED_APPS or else was imported before its application was loaded. This will no longer be supported in Django 1.9.
class Category(models.Model):
The code from my app,
我的应用程序中的代码，
signals.py
信号.py
from django.db.models.signals import post_save
from django.dispatch import receiver
from models import Category
@receiver(post_save, sender=Category)
def someSignal(sender, **kwargs):
pass
apps.py
应用程序.py
from django.apps import AppConfig
class CatalogConfig(AppConfig):
name = 'catalog'
verbose_name = 'Catalogue'
init.py
初始化文件
import signals
default_app_config = 'catalog.apps.WhosConfig'
Django version 1.8.2 on Python 2.7.8
Python 2.7.8上的 Django 1.8.2 版
采纳答案by Moamen
You are importing models.pybefore app configuration run.
您在应用配置运行之前导入models.py。
To fix it, you could import and configure signals in CatalogConfig.readymethod.
要修复它，您可以在CatalogConfig.ready方法中导入和配置信号。
like this:
像这样：
signals.py
信号.py
def someSignal(sender, **kwargs):
pass
apps.py
应用程序.py
from django.apps import AppConfig
from django.db.models.signals import post_save
class CatalogConfig(AppConfig):
name = 'catalog'
verbose_name = 'Catalogue'
def ready(self):
from .signals import someSignal
post_save.connect(
receiver=someSignal,
sender=self.get_model('Category')
)
you may want to check ready method in documentation
您可能想在文档中检查 ready 方法
回答by Jace Browning
I experienced this issue when running tests and it was simply a matter of changing:
我在运行测试时遇到了这个问题，这只是一个改变的问题：
from .models import MyModel
to
到
from apps.myapp.models import MyModel
