Question

我的django网站非常实用，它与数据库和Web客户端进行通信。我的文件夹设置如下：

top
+--- django
     +---my_framework
         +--- models.py
         +--- settings.py
     +---lib
+--- scripts
     +---scripts_that_do_stuff_from_console
     +--- service_that_needs_access_to_models

我已经能够从我脚本文件夹中的不同scrips访问lib文件夹中的库，如下所示：

lib_path = os.path.abspath(os.path.join(os.path.join('..', 'django'),"lib"))
sys.path.append(lib_path)

这似乎不太优雅，但它确实有效。

我需要另一个在后台运行的应用程序，该应用程序与数据库通信并支持django框架并与控制台交互。我想在models.py中访问一些模型，所以我尝试了这个：

lib_path = os.path.abspath(os.path.join(os.path.join('..', 'django'),"lib"))
sys.path.append(lib_path)
from models import SystemConfiguration

我收到此错误：

Traceback (most recent call last):
  File "./imageHandler.py", line 14, in <module>
    from models import SystemConfiguration
  File "/home/jordan/django/my_framework/models.py", line 2, in <module>
    from django.contrib.auth.hashers import make_password
  File "/usr/local/lib/python2.7/dist-packages/django/contrib/auth/__init__.py", line 7, in <module>
    from django.middleware.csrf import rotate_token
  File "/usr/local/lib/python2.7/dist-packages/django/middleware/csrf.py", line 14, in <module>
    from django.utils.cache import patch_vary_headers
  File "/usr/local/lib/python2.7/dist-packages/django/utils/cache.py", line 26, in <module>
    from django.core.cache import caches
  File "/usr/local/lib/python2.7/dist-packages/django/core/cache/__init__.py", line 34, in <module>
    if DEFAULT_CACHE_ALIAS not in settings.CACHES:
  File "/usr/local/lib/python2.7/dist-packages/django/conf/__init__.py", line 48, in __getattr__
    self._setup(name)
  File "/usr/local/lib/python2.7/dist-packages/django/conf/__init__.py", line 42, in _setup
    % (desc, ENVIRONMENT_VARIABLE))
django.core.exceptions.ImproperlyConfigured: Requested setting CACHES, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings.

我知道脚本需要读取settings.py，所以我尝试了：

import settings as mySettings
settings.configure(default_settings=mySettings, DEBUG=True)

这并没有真正帮助。我已经戳了一段时间，但还没有取得任何进展。任何建议都是最受欢迎的。

更好地到达......我添加了这个（如Semprini建议的那样）：

lib_path = os.path.abspath("/mnt/garageMonitor/django/lib")
sys.path.append(lib_path)
lib_path = os.path.abspath("/mnt/garageMonitor/django/garageMonitor")
sys.path.append(lib_path)
os.environ['DJANGO_SETTINGS_MODULE'] = 'settings'
from models import SystemConfiguration

现在我收到了这个错误：

django.core.exceptions.ImproperlyConfigured: Unable to detect the app label for model "MyClass." Ensure that its module, "models", is located inside an installed app.

MyClass位于models.py文件中，因此现在正确打开它，但还有其他错误......

Answer 1

设置模块需要在开始时添加到os.environ dict中（可能在导入任何模型之前但在执行sys.path.append之后）

os.environ ['DJANGO_SETTINGS_MODULE'] ='设置'

文件夹布局：

Wibble Project>
   manage.py
   wibble>
      settings.py   #must contain 'stuff' as an app
   stuff>
      models.py
   test.py

示例test.py：

import os
os.environ['DJANGO_SETTINGS_MODULE'] = 'wibble.settings'
from stuff.models import MyObject
print(MyObject.objects.all())

输出：

python test.py

[<MyObject: Object1>,<MyObject: Object2>]

将django模型导入另一个应用程序

1 个答案: