Django，教程 - 错误：没有名为urls的模块

Question

您好我正在按照教程制作Django的第一个网络应用程序（link） 但我得到了这个错误：

 File "c:\Python27\lib\site-packages\django\utils\autoreload.py", line 226, in wrapper
    fn(*args, **kwargs)
   File "c:\Python27\lib\site-packages\django\core\management\commands\runserver.py", line 121, in inner_run
    self.check(display_num_errors=True)
   File "c:\Python27\lib\site-packages\django\core\management\base.py", line 374, in check
    include_deployment_checks=include_deployment_checks,
   File "c:\Python27\lib\site-packages\django\core\management\base.py", line 361, in _run_checks
    return checks.run_checks(**kwargs)
   File "c:\Python27\lib\site-packages\django\core\checks\registry.py", line 81, in run_checks
    new_errors = check(app_configs=app_configs)
   File "c:\Python27\lib\site-packages\django\core\checks\urls.py", line 14, in check_url_config
    return check_resolver(resolver)
   File "c:\Python27\lib\site-packages\django\core\checks\urls.py", line 24, in check_resolver
    for pattern in resolver.url_patterns:
   File "c:\Python27\lib\site-packages\django\utils\functional.py", line 35, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
   File "c:\Python27\lib\site-packages\django\urls\resolvers.py", line 313, in url_patterns
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
   File "c:\Python27\lib\site-packages\django\utils\functional.py", line 35, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
   File "c:\Python27\lib\site-packages\django\urls\resolvers.py", line 306, in urlconf_module
    return import_module(self.urlconf_name)
   File "c:\Python27\lib\importlib\__init__.py", line 37, in import_module
    __import__(name)
   File "c:\Python27\Proj\mysite\mysite\urls.py", line 7, in <module>
    url(r'^polls/', include('polls.urls'))
   File "c:\Python27\lib\site-packages\django\conf\urls\__init__.py", line 50, in include
    urlconf_module = import_module(urlconf_module)
   File "c:\Python27\lib\importlib\__init__.py", line 37, in import_module
    __import__(name) ImportError: No module named urls

我已经在SO上阅读了一些答案，但他们认为这个错误是由错误版本的框架引起的，这不是我的情况。我的python版本是2.7和Djanog 1.10.1

我的urls.py

from django.conf.urls import url, include


from django.contrib import admin

urlpatterns = [
    url(r'^polls/', include('polls.urls'))    ]

谢谢。

编辑：

文件：polls / urls.py

from django.conf.urls import url

from . import views

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

编辑2：

感谢大家的评论。我的项目有文件结构。

Answer 1

url(r'^polls/', include('polls.urls'))

这条线正在做的是将urls.py个polls app文件夹添加到您的网址，并在所有网址前附加polls/。

出现错误：

File "c:\Python27\Proj\mysite\mysite\urls.py", line 7, in <module>
    url(r'^polls/', include('polls.urls'))

该错误表明它无法在urls.py文件夹中找到polls，因此请确保它在那里。并正确配置。

并确保以下内容：

• 您的应用投票列在INSTALLED_APPS
的settings.py中
• 确认__init__.py app文件夹
中有polls个文件

Answer 2

我一直面临这个问题，花了很长时间后，我已经能够理解“没有名为urls的模块”与python依赖项或库无关。

url(r'^polls/', include('polls.urls'))

上面的行显示'polls'是项目的应用程序，Django实际上正在寻找名为'urls.py'的文件。确保使用url matcher文件的确切名称，如app文件夹中所示。

例如，如果文件已命名为“url.py”，请记住将确切的名称写为

url(r'^polls/', include('polls.url'))

与Django 1.10一样，您不必担心其他任何事情。