Question

我是一名学习python django的学生。

我在下面遇到错误消息。

NoReverseMatch at /
Reverse for 'product' with arguments '(2,)' and keyword arguments '{}' not found.
1 pattern(s) tried: ['$(?P<pk>[0-9]+)$']

我试图从昨天开始搜索和搜索，但我真的不知道原因。

您能否给我一个提示或建议？

我使用的Django版本是1.7。

=============================================== ===================================

project_root /商店/模板/商店/ base.html文件

 <!-- **  error occurs at this point  ** -->
 <li><a href="{% url 'shops:product' category.id %}" >

project_root /项目/ urls.py

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

 urlpatterns = [
     url(r'^$', include('shops.urls', namespace="shops")),
     url(r'^admin/', include(admin.site.urls)),
 ]

 if settings.DEBUG:
     urlpatterns += [
         url(r'^media/(?P<path>.*)$', 'django.views.static.serve', {
             'document_root': settings.MEDIA_ROOT,
         }),
         url(r'^static/(?P<path>.*)$', 'django.views.static.serve', {
             'document_root': settings.STATIC_ROOT,
         }),
 ]

project_root /商店/ urls.py

from django.conf.urls import url
from shops import views

urlpatterns = [
    url(r'^$', views.IndexView.as_view(), name='index'),
    url(r'^(?P<pk>[0-9]+)$', views.ProductView.as_view(), name='product'),
]

project_root /商店/ views.py

from django.views.generic.base import TemplateView 
from django.views.generic.list import ListView
from django.utils import timezone

from shops.models import Sex, Category, Product


class IndexView(TemplateView):
    template_name = 'shops/index.html'

    def get_context_data(self):
        context = super(IndexView, self).get_context_data()
        context['sex_list'] = Sex.objects.all()
        context['category_list'] = Category.objects.all()
        context['latest_product_list'] = Product.objects.order_by('-pub_date')[:5]

        return context

class ProductView(ListView):
    template_name = 'shops/product_list.html'

    def get_context_data(self):
        context = super(ProductView, self).get_context_data()
        context['product_list'] = Product.objects.all()
        return context

Answer 1

您需要将 project_root / project / urls.py 中的url(r'^$', include('shops.urls', namespace="shops")),更改为url(r'^', include('shops.urls', namespace="shops")), $表示匹配字符串的字符与$之前的字符完全相同，因此当您在 project_root / shops / urls.py 中有pk时，pk无法获取之所以考虑是因为原始网址中指定的$包含了所有 project_root / shops / urls.py ，会缩短正则表达式。

这可能措辞得更好......但希望你明白这一点。用于包含其他网址文件的网址几乎不应包含$

NoReverseMatch的Django错误

1 个答案: