Python 渲染时的NoReverseMatch：对于'；视图。showusersignin'；带参数'；（）'；和关键字参数'；{'；用户ID'；：u'；rec.0'；}'；找不到

我看了很多关于stackoverflow的讨论，但是没有一个有用。所以我决定把我的代码粘贴在这里。所以请帮我找出哪里做错了。谢谢

这里是url.py

(r'^showusersignin/(?P<userid>\d+)/$', 'views.showusersignin'),

def showusersignin(request,userid):

这里是sign.html

{%for rec in records.object_list%}

        <tr>
            <td width = "15%">
               <a href="{%url views.showusersignin userid='rec.0' %}">{{rec.0}}</a>
            </td>
            <td width = "15%">
                {{rec.1}}
            </td>
            <td width = "15%">
                {{rec.2}}
            </td>

        </tr>
 {%endfor%}

---

你做错了两件事

首先，您将

'rec.0'

作为字符串放入url标记中。我假定您的意思是传递该列表项的值，因此您应该执行

userid=rec.0

---

其次，您的URL没有

userid

参数，因为您没有使用命名参数。将其更改为

r'^showusersignin/（？P\d+）/$”

，或将url标记更改为

{%url views.showusersignin rec.0%}

将

url.py

的初始部分粘贴到执行

urlpatterns=patterns>操作的位置（…

我的猜测是，您没有在那里指定正确的应用程序。另一种可能性是：

-因为您指定了

userid=

django认为kwarg，而不是必需的参数

Request Method: GET
Request URL:    mysite/signin
Django Version: 1.2.5
Exception Type: TemplateSyntaxError
Exception Value:    
Caught NoReverseMatch while rendering: Reverse for 'views.showusersignin' with arguments '()' and keyword arguments '{'userid': u'rec.0'}' not found.
Exception Location: /base/python27_runtime/python27_lib/versions/third_party/django-1.2/django/template/defaulttags.py in render, line 385
Python Executable:  /base/python27_runtime/python27_dist/python
Python Version: 2.7.3
Python Path:    ['/base/data/home/apps/s~bgshelloworld/9.363836595528814694', '/base/data/home/apps/s~bgshelloworld/9.363836595528814694', '/base/python27_runtime/python27_dist/lib/python27.zip', '/base/python27_runtime/python27_dist/lib/python2.7', '/base/python27_runtime/python27_dist/lib/python2.7/plat-linux2', '/base/python27_runtime/python27_dist/lib/python2.7/lib-tk', '/base/python27_runtime/python27_dist/lib/python2.7/lib-old', '/base/python27_runtime/python27_dist/lib/python2.7/lib-dynload', '/base/python27_runtime/python27_dist/lib/python2.7/site-packages', '/base/python27_runtime/python27_lib/versions/1', '/base/python27_runtime/python27_lib/versions/third_party/django-1.2', '/base/python27_runtime/python27_lib/versions/third_party/jinja2-2.6', '/base/python27_runtime/python27_lib/versions/third_party/markupsafe-0.15', '/base/python27_runtime/python27_lib/versions/third_party/setuptools-0.6c11', '/base/python27_runtime/python27_lib/versions/third_party/webapp2-2.3', '/base/python27_runtime/python27_lib/versions/third_party/webob-1.1.1', '/base/python27_runtime/python27_lib/versions/third_party/yaml-3.10']
Server time:    Thu, 13 Dec 2012 11:11:23 +0000