Django:包含的urlconf core.urls中没有任何模式

Question

我对基于类的视图和reverse_lazy有一些奇怪的问题.

调用网站时出现以下错误:

ImproperlyConfigured at /dashboard/student/
The included urlconf core.urls doesn't have any patterns in it

我的views.py:

class DashStudentMain(TemplateView):
    model_class = None
    template_name = 'learn/dashboard/snip_student_1.html'
    tab_list = {
        ("Main", reverse_lazy('dash_student_main_url')),
        #("History", reverse_lazy('dash_student_main_url'))
    }
    active_tab = "Main"

我的core.urls:

from django.conf.urls.defaults import patterns, include, url
from django.contrib import admin
from django.views.generic import RedirectView
from django.conf import settings

admin.autodiscover()

urlpatterns = patterns(
    '',
    url(r'^$', 'core.views.home', name='home_url'),
    url(r'^home', 'core.views.home'),
    url(r'^dashboard/', include('tc_learn.dashboard.urls')),
    ...
)

我的tc_learn.dashboard.urls:

from django.conf.urls.defaults import patterns, url
from .views import DashStudentMain, DashStudentHistory

urlpatterns = patterns(
    # Student + Tabs
    url(r"^", DashStudentMain.as_view()),
    url(r"^student/$", DashStudentMain.as_view(), name="dash_student_main_url"),
    url(r"^student/history/$", DashStudentHistory.as_view(), name="dash_student_history_url"),

我有

• 重新启动服务器,以确保正确加载网址
• 注释掉("Main",reverse_lazy('dash_student_main_url'))以确保urls.py语法正常
• 删除了行url(r"^",DashStudentMain.as_view()),因为它还没有被使用,但没有它/ dashboard/student根本不起作用..

知道我可能会缺少什么吗？谢谢!

编辑:看起来问题来自tab_list对象.当我直接分配对象时tab_list = reverse_lazy('dash_student_main_url'),代码工作正常.当我在列表中使用它时,它显示错误.有没有人知道这种情况的解决方法？

Answer 1

更改此代码:

tab_list = {
    ("Main", reverse_lazy('dash_student_main_url')),
    #("History", reverse_lazy('dash_student_main_url'))
}

至:

tab_list = [
    ("Main", reverse_lazy('dash_student_main_url')),
    #("History", reverse_lazy('dash_student_main_url'))
]

与您给变量的名称相反,您没有创建列表,而是创建集合.元素在集创建时立即进行评估,因为集合需要更多地了解它们包含的值.将其更改为正确的列表将允许按照预期懒惰地评估元素.