TypeError at /post/ render_to_response() got an unexpected keyword argument 'context_instance'

最新推荐文章于 2024-04-22 13:00:53 发布

转载最新推荐文章于 2024-04-22 13:00:53 发布 · 258 阅读

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原文链接：http://www.cnblogs.com/xqnq2007/p/7043774.html

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本文详细介绍了在使用Django 1.10版本时遇到的Formtools兼容性错误，TypeError at /post/ render_to_response() got an unexpected keyword argument 'context_instance'。通过修改formtools/preview.py文件中的render_to_response为render，并移除context_instance参数，成功解决了该问题。同时，建议卸载旧版django-formtools并从GitHub安装最新版本。

Exception Type: TypeError at /post/ Exception Value: render_to_response() got an unexpected keyword argument 'context_instance'
https://stackoverflow.com/questions/39629793/typeerror-at-post-render-to-response-got-an-unexpected-keyword-argument-con

formtools not supported the Django 1.10 version please downgrade your Django release for the workaround.

https://github.com/django/django-formtools/issues/75

I solved it by some changes in lib/python3.5/site-packages/formtools/preview.py file. Here I first changes render_to_response to render and then removed context_instance=RequestContext(request) from argument. Suppose post_post method now look like:
 def post_post(self, request): """ Validates the POST data. If valid, calls done(). Else, redisplays form. """ form = self.form(request.POST, auto_id=self.get_auto_id()) if form.is_valid(): if not self._check_security_hash( request.POST.get(self.unused_name('hash'), ''), request, form): return self.failed_hash(request) # Security hash failed. return self.done(request, form.cleaned_data) else: return render(request, self.form_template, self.get_context(request, form))
It looks like it was already fixed in their repository:

https://github.com/django/django-formtools/blob/master/formtools/preview.py#L88

in this commit:

https://github.com/django/django-formtools/commit/46b6839fb0063fa10ffb896ce80f7155ca7a9f6e

Uninstall django-formtools (pip uninstall django-formtools) and install the library using this this pip command instead:

pip install -e git+git://github.com/django/django-formtools#egg=django-formtools

转载于:https://www.cnblogs.com/xqnq2007/p/7043774.html