标签：python-2-7 sequence django-1-7 python django

我正在将python / django应用程序从1.6.5升级到1.7.我在解决以下错误时遇到麻烦：字典更新序列元素#0的长度为15； 2个为必填项

这是回溯输出：

Request Method: GET
Request URL: http://127.0.0.1:8000/dashboard/

Django Version: 1.7
Python Version: 2.7.5
Installed Applications:
('django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'django.contrib.sites',
 'django.contrib.humanize',
 'bootstrap3',
 'ajax_select',
 'appconf',
 'versiontools',
 'compressor',
 'googlecharts',
 'django_extensions',
 'mandala',
 'locations',
 'statistics',
 'alarms',
 'accounts',
 'assets')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware')


Traceback:
File "/Users/CLDSupportSystems/mandala-system/mandala_env_django_1.7/lib/python2.7/sit-packages/django/core/handlers/base.py" in get_response
111.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/Users/CLDSupportSystems/mandala-system/mandala_env_django_1.7/lib/python2.7/site-packages/django/contrib/auth/decorators.py" in _wrapped_view
  22.                 return view_func(request, *args, **kwargs)
File "/Users/CLDSupportSystems/mandala-system/mandala_env_django_1.7/mandala/mandala/views.py" in dashboard
  117.         return render_to_response('dashboard/dashboard.html', variables,context_instance=RequestContext(request))
File "/Users/CLDSupportSystems/mandala-system/mandala_env_django_1.7/lib/python2.7/site-packages/django/shortcuts.py" in render_to_response
  23.     return HttpResponse(loader.render_to_string(*args, **kwargs), **httpresponse_kwargs)
File "/Users/CLDSupportSystems/mandala-system/mandala_env_django_1.7/lib/python2.7/site-packages/django/template/loader.py" in render_to_string
  177.     with context_instance.push(dictionary):
File "/Users/CLDSupportSystems/mandala-system/mandala_env_django_1.7/lib/python2.7/site-packages/django/template/context.py" in push
  54.         return ContextDict(self, *args, **kwargs)
File "/Users/CLDSupportSystems/mandala-system/mandala_env_django_1.7/lib/python2.7/site-packages/django/template/context.py" in __init__
  19.         super(ContextDict, self).__init__(*args, **kwargs)

Exception Type: ValueError at /dashboard/
Exception Value: dictionary update sequence element #0 has length 15; 2 is required

该错误引发以下行：

return render_to_response('dashboard/dashboard.html', variables,context_instance=RequestContext(request))

这是变量的定义：

variables = RequestContext(request, {
    'fresh_locations': fresh_data_locations,
    'webalert_locations': webalert_locations,
    'locations_reporting': reporting_locations,
    'locations_not_reporting': locations_not_reporting,
    'inalarm_count': inalarm_count,
    'inalarm_stores': inalarm_stores_qs,
    'workspace_count': workspace_count,
    'user_profile': user_profile,
})

谁能指出我正确的方向？

解决方法:

render_to_response()的第二个参数必须是字典.您传递的是RequestContext().

删除RequestContext()对象,并使变量成为字典：

variables = {
    'fresh_locations': fresh_data_locations,
    'webalert_locations': webalert_locations,
    'locations_reporting': reporting_locations,
    'locations_not_reporting': locations_not_reporting,
    'inalarm_count': inalarm_count,
    'inalarm_stores': inalarm_stores_qs,
    'workspace_count': workspace_count,
    'user_profile': user_profile,
}

标签：python-2-7,sequence,django-1-7,python,django
来源： https://codeday.me/bug/20191121/2049588.html

本站声明： 1. iCode9 技术分享网（下文简称本站）提供的所有内容，仅供技术学习、探讨和分享；
2. 关于本站的所有留言、评论、转载及引用，纯属内容发起人的个人观点，与本站观点和立场无关；
3. 关于本站的所有言论和文字，纯属内容发起人的个人观点，与本站观点和立场无关；
4. 本站文章均是网友提供，不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属；如您发现该文章侵犯了您的权益，可联系我们第一时间进行删除；
5. 本站为非盈利性的个人网站，所有内容不会用来进行牟利，也不会利用任何形式的广告来间接获益，纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。