Django错误：render_to_response（）得到了一个意想不到的关键字参数'context_instance' [英] Django error: render_to_response() got an unexpected keyword argument 'context_instance'

问题描述

升级到Django 1.10后，我收到错误 render_to_response（）得到一个意想不到的关键字参数context_instance。

我的观点如下：

  from django.shortcuts import render_to_response 
 from django.template import RequestContext 
 
 def my_view（request）：
 context = {'foo'：'bar'} 
 return render_to_response（'my_template.html'，context，context_instance = RequestContext（request） 
  

这是完整的追溯：

 追溯：
 
文件/Users/alasdair/.virtualenvs/django110/lib/python2.7/site-packages/django/core/handlers/exception.py in inner 
 39. response = get_response（request）
 
文件/Users/alasdair/.virtualenvs/django110/lib/python2.7/site-packages/django/core/handlers /base.py_get_response 
 187. response = self.process_exception_by_middleware（e，request）
 
文件/Users/alasdair/.virtualenvs/django110/lib/python2.7/site-packages/django/core/handlers/base.py在_get_response 
 185. response = wrapped_callback（request， * callback_args，** callback_kwargs）
 
 my_view 
中的/Users/alasdair/dev/rtr/rtr/urls.py文件26.返回render_to_response（'my_template.html'，上下文，context_instance = RequestContext（request））
 
异常类型：TypeError at / 
异常值：render_to_response（）得到一个意想不到的关键字参数'context_instance'
  

解决方案

<$ c $中的 context_instance c> render_to_response 是在Django 1.8中弃用，并在Django 1.10中删除。

解决方案是切换到 render 快捷方式，自动使用 RequestContext 。

更新您的导入和查看，如下所示。请注意， render 将请求对象作为第一个参数。

pre $ 从django.shortcuts import render

def my_view（request）：
context = {'foo'：'bar'}
return render（request，'my_template.html'，context）


渲染快捷方式在Django 1.3中引入，所以这个更改与旧版本的Django兼容。

After upgrading to Django 1.10, I get the error render_to_response() got an unexpected keyword argument 'context_instance'.

My view is as follows:

from django.shortcuts import render_to_response
from django.template import RequestContext

def my_view(request):
    context = {'foo': 'bar'}
    return render_to_response('my_template.html', context, context_instance=RequestContext(request))

Here is the full traceback:

Traceback:

File "/Users/alasdair/.virtualenvs/django110/lib/python2.7/site-packages/django/core/handlers/exception.py" in inner
  39.             response = get_response(request)

File "/Users/alasdair/.virtualenvs/django110/lib/python2.7/site-packages/django/core/handlers/base.py" in _get_response
  187.                 response = self.process_exception_by_middleware(e, request)

File "/Users/alasdair/.virtualenvs/django110/lib/python2.7/site-packages/django/core/handlers/base.py" in _get_response
  185.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/Users/alasdair/dev/rtr/rtr/urls.py" in my_view
  26.     return render_to_response('my_template.html', context,  context_instance=RequestContext(request))

 Exception Type: TypeError at /
Exception Value: render_to_response() got an unexpected keyword argument 'context_instance'

解决方案

The context_instance parameter in render_to_response was deprecated in Django 1.8, and removed in Django 1.10.

The solution is to switch to the render shortcut, which automatically uses a RequestContext.

Update your imports and view as follows. Note that render takes the request object as its first argument.

from django.shortcuts import render

def my_view(request):
    context = {'foo': 'bar'}
    return render(request, 'my_template.html', context)

The render shortcut was introduced in Django 1.3, so this change is compatible with older versions of Django.

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