Question

我在项目后端使用django 1.10.5和mongodb。我的项目结构如下 -

project_name
|-- applications
|   |-- app1
|   |   |-- admin.py
|   |   |-- upload.py
|   |   |-- __init__.py
|   |   |-- migrations
|   |   |   `-- __init__.py
|   |   |-- models.py
|   |   |-- services.py
|   |   |-- urls.py
|   |   |-- views.py
|   |-- __init__.py
|-- __init__.py
|-- manage.py
|-- project_name_config
    |-- __init__.py
    |-- settings
    |   |-- dev_settings.py
    |   |-- __init__.py
    |   |-- prod_settings.py
    |   |-- settings.py
    |-- urls.py
    |`-- wsgi.py

我正在使用虚拟环境。我在目录应用程序下使用manage.py创建了应用程序。根据django教程，当我在settings.py中的INSTALLED_APPS列表下添加app_name时，为 -

    INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'corsheaders',
'applications.app1',
]

它给出了错误 -

(virtEnv):~$python manage.py runserver
Unhandled exception in thread started by <function wrapper at 0x7fe94e554848>
Traceback (most recent call last):File "/home/dir_project/virtEnv/local/lib/python2.7/site-  packages/django/utils/autoreload.py", line 226, in wrapper
fn(*args, **kwargs)
File "/home/dir_project/virtEnv/local/lib/python2.7/site-packages/django/core/management/commands/runserver.py", line 113, in inner_run
autoreload.raise_last_exception()
  File "/home/dir_project/virtEnv/local/lib/python2.7/site-packages/django/utils/autoreload.py", line 249, in raise_last_exception
six.reraise(*_exception)
  File "/home/dir_project/virtEnv/local/lib/python2.7/site-packages/django/utils/autoreload.py", line 226, in wrapper
fn(*args, **kwargs)
  File "/home/dir_project/virtEnv/local/lib/python2.7/site-packages/django/__init__.py", line 27, in setup
apps.populate(settings.INSTALLED_APPS)
  File "/home/dir_project/virtEnv/local/lib/python2.7/site-packages/django/apps/registry.py", line 85, in populate
app_config = AppConfig.create(entry)
 File "/home/dir_project/virtEnv/local/lib/python2.7/site-packages/django/apps/config.py", line 90, in create
module = import_module(entry)
  File "/usr/lib/python2.7/importlib/__init__.py", line 37, in  import_module
__import__(name)
ImportError: No module named app1

但是当我从settings.py我的应用程序中移除app_name时，视图等一切正常。

考虑到未来范围，是否必须在INSTALLED_APPS列表下的settings.py中添加app_name。

提前致谢。

Answer 1

为了让您的模型在数据库中创建为表格，或者如果我们想要编写任何自定义模板标签并使它们起作用，我们必须将app_name保存在INSTALLED_APPS中。由于您的实际应用程序app1位于应用程序文件夹中，请将applications.app1保留在INSTALLED_APPS而不仅仅是app1

在django中，我们是否需要在INSTALLED_APPS列表下的settings.py文件中定义应用程序名称

1 个答案: