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Django错误:render_to_response()获得了意外的关键字参数“ context_instance”

左翰海
2023-03-14
问题内容

升级到Django 1.10后,出现错误render_to_response() got an unexpected keyword argument 'context_instance'

我的看法如下:

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))

这是完整的回溯:

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'

问题答案:

中的context_instance参数在Django
1.8
render_to_response已弃用,在Django 1.10中已删除。

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

更新您的导入并按如下所示进行查看。注意,renderrequest对象作为其第一个参数。

from django.shortcuts import render

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

render快捷方式是Django 1.3中引入的,因此此更改与Django的较早版本兼容。



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