Django通用登录视图返回'str object not callable'错误 [英] Django generic login view return 'str object not callable' error

问题描述

我的myProject中的urls.py是

  from django.conf.urls import patterns，include，url 
 from testapp import urls 
 
 urlpatterns = patterns（''，
 url（r'^'，include（urls）），
）
 
来自django.conf.urls导入模式的包含来自testapp.forms的url 
 import UsersForm 
 
 urlpatterns = patterns（''，
 url '^ $'，'django.contrib.auth.views.login'，{'template_name'：'testapp / templates / login.html'，'authentication_form'：'UsersForm'}），
）
  
我的myProject / templates / login.html是
 < form method =postaction ={％url'django.contrib / auth.views.login'％}> {％csrf_token％} 
 { form.username.label_tag}} 
 {{form.username}} 
 {{form.password.label_tag}} 
 {{form.pas sword}} 
< input type =submitvalue =login/> 
< input type =hiddenname =nextvalue ={{next}}/> 
< / form> 
  
现在，当我运行服务器并转到127.0.0.1它说
  Type $ / 
 
'str'对象不可调用
请求方法：GET 
请求URL：http ：//127.0.0.1：8000 / 
 Django版本：1.5.2 
异常类型：TypeError 
异常值：
'str'对象不可调用
异常位置：/usr/local/lib/python2.7/dist-packages/django/contrib/auth/views.py登录，第53行
追溯：
文件/ usr / local / lib / python2.7 / dist-packages / django / core / handlers / base.pyin get_response 
 115. response = callback（request，* callback_args，** callback_kwargs）
文件/ usr / local / lib / python2.7 / dist-packages / django / views / decorators / debug.pyin sensitive_post_parameters_wrapper 
 69. return view（request，* args，** kwargs）
文件/ usr / local /lib/python2.7/dist-packages/django/utils/decorators.py在_wrapped_view 
 91。 response = view_func（request，* args，** kwargs）
文件/usr/local/lib/python2.7/dist-packages/django/views/decorators/cache.py在_wrapped_view_func 
 89. response = view_func（request，* args，** kwargs）
文件/usr/local/lib/python2.7/dist-packages/django/contrib/auth/views.py在登录
 53. form = authentication_form（request）
 
异常类型：TypeError at / 
异常值：'str'对象不可调用
  / pre> 
 
 
我正在使用django提供的通用登录视图。为什么在通用登录视图中的第53行给我一个错误？在我的urls.py中，我确实指定了'authentication_form'：'UsersForm'。我导入用户窗体错误吗？
解决方案
要清除托马斯的答案，那是正确的。 
 
传递表单本身，而不是字符串：
 
 
  from testapp.forms import UsersForm 
 url（r'^ $'，'django.contrib.auth.views.login'，{'template_name'：'testapp / templates / login.html'，'authentication_form'：UsersForm}），
  
 
My urls.py in myProject is 
from django.conf.urls import patterns, include, url
from testapp import urls

urlpatterns = patterns('',
    url(r'^', include(urls)),
)
and my urls.py in myApp (called testapp) is 
from django.conf.urls import patterns, include, url
from testapp.forms import UsersForm

urlpatterns = patterns('',
    url(r'^$', 'django.contrib.auth.views.login', {'template_name': 'testapp/templates/login.html', 'authentication_form':'UsersForm'}),
)
My myProject/templates/login.html is 
        <form method="post" action="{% url 'django.contrib/auth.views.login' %}">{% csrf_token%}
            {{form.username.label_tag}}
            {{form.username}}
            {{form.password.label_tag}}
            {{form.password}}
        <input type="submit" value="login" />
        <input type="hidden" name="next" value="{{ next }}" />
        </form>
Now, when I runserver and go to 127.0.0.1 it says 
TypeError at /

'str' object is not callable
Request Method: GET
Request URL:    http://127.0.0.1:8000/
Django Version: 1.5.2
Exception Type: TypeError
Exception Value:    
'str' object is not callable
Exception Location: /usr/local/lib/python2.7/dist-packages/django/contrib/auth/views.py   in login, line 53
Traceback:
File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in  get_response
  115.                         response = callback(request, *callback_args,    **callback_kwargs)
File "/usr/local/lib/python2.7/dist-packages/django/views/decorators/debug.py" in   sensitive_post_parameters_wrapper
  69.             return view(request, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/django/utils/decorators.py" in _wrapped_view
  91.                     response = view_func(request, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/django/views/decorators/cache.py" in _wrapped_view_func
  89.         response = view_func(request, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/django/contrib/auth/views.py" in login
  53.         form = authentication_form(request)

Exception Type: TypeError at /
Exception Value: 'str' object is not callable
I am using the generic login view which django provides. Why is it giving me an error at line 53 in the generic login view? In my urls.py I did specify that 'authentication_form':'UsersForm'. Am I importing the UsersForm incorrectly?
解决方案
To clear out Thomas's answer, which is right. 

Pass the form itself, not the string: 

from testapp.forms import UsersForm
url(r'^$', 'django.contrib.auth.views.login', {'template_name': 'testapp/templates/login.html', 'authentication_form':UsersForm}),


                        
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