Django - 导入错误：没有名为*.urls的模块

Question

我正在学习官方的Django教程，并根据自己的需求稍微调整一下，使用的是Django 1.6.1版本和Python 2.7.6。

现在我在设置网址映射的时候，总是遇到“No module named customers.urls”的错误，明明里面有一个命名合适的模块文件，所以我真的不知道自己哪里出了问题。

我最开始的想法是需要在根目录的urls.py文件里导入一些与customers相关的东西，但无论我怎么组合导入，结果都差不多是同样的错误，而且教程里并没有说要这样做。

ROOT_URLCONF = 'taco.urls'（taco是项目的名字）

我是在用manage.py/runserver来运行这个项目，所以我知道没有什么特别的网络服务器设置。我已经重启了好几次。

所有的应用程序都已经正确注册，回溯信息也能证明这一点。

如果有我忽略的地方，请给我一些提示！

根目录的urls.py:

from django.conf.urls import patterns, include, url
from django.contrib import admin

admin.autodiscover()

urlpatterns = patterns('',
    url(r'^customers/', include('customers.urls')),
    url(r'^admin/', include(admin.site.urls)),
)

customers的urls.py:

from django.conf.urls import patterns, url;

from customers import views;

urlpatterns = ('', 
    url(r'^$', views.index, name='index')
);

customers的views.py:

from django.shortcuts import render
from django.http import HttpResponse;

def index(request):
    return HttpResponse("Hello");

回溯信息

Environment:


Request Method: GET
Request URL: http://192.168.3.208:8000/customers/

Django Version: 1.6.1
Python Version: 2.7.6
Installed Applications:
('django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'south',
 'taco.customers',
 'taco.inventory',
 'taco.lookups',
 'taco.orders')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware')


Traceback:
File "/usr/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response
  99.                 resolver_match = resolver.resolve(request.path_info)
File "/usr/lib/python2.7/dist-packages/django/core/urlresolvers.py" in resolve
  337.             for pattern in self.url_patterns:
File "/usr/lib/python2.7/dist-packages/django/core/urlresolvers.py" in url_patterns
  365.         patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/usr/lib/python2.7/dist-packages/django/core/urlresolvers.py" in urlconf_module
  360.             self._urlconf_module = import_module(self.urlconf_name)
File "/usr/lib/python2.7/dist-packages/django/utils/importlib.py" in import_module
  40.         __import__(name)
File "/var/project/taco/taco/urls.py" in <module>
  7.     url(r'^customers/', include('customers.urls')),
File "/usr/lib/python2.7/dist-packages/django/conf/urls/__init__.py" in include
  26.         urlconf_module = import_module(urlconf_module)
File "/usr/lib/python2.7/dist-packages/django/utils/importlib.py" in import_module
  40.         __import__(name)

Exception Type: ImportError at /customers/
Exception Value: No module named customers.urls

Answer 1

如果“taco”是项目的名字，检查一下应用程序是否被正确引用。在你的已安装应用中，你可能需要添加以下内容：

Installed Applications:
('django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'south',
 'customers',
 'inventory',
 'lookups',
 'orders')

Answer 2

在你的 customers/urls.py 文件里：

把这个部分：

urlpatterns = ('', 
    url(r'^$', views.index, name='index')
);

改成这个：

urlpatterns = patterns('', 
    url(r'^$', views.index, name='index')
);

另外，确保你的 __init__.py 文件在 customers 这个包里。而且 INSTALLED_APPS 里要正确填写你的应用名称。

INSTALLED_APPS = (
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.sites',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'django.contrib.admin',
    'south',
    'customers',
    'inventory',
    'lookups',
    'orders',
)