我发现原因：在settings.py中添加： django.middleware.csrf.CsrfViewMiddleware
但不是： django.middleware.csrf.CsrfResponseMiddleware 。

所以在 django.middleware.csrf之后添加 django.middleware.csrf.CsrfResponseMiddleware CsrfViewMiddleware 和 django.middleware.common.CommonMiddleware ，你很好。

I am struggling with the CSRF token in a simple POST form in Django. The template generates the following CSRF output instead of outputting the value of the token:

<input type='hidden' name='csrfmiddlewaretoken' value='{'csrf_token':django.utils.functional.__proxy__ object at 0x1255690>}' />

I am using {% csrf_token %} in the template, how can I fix this? (I am using Django 1.2)

EDIT: the exact form code is:

<form name="foo" action="url" method="POST">
   {% csrf_token %}

   <select>
       {% for key, account in accounts.items %} 
           <option value="{{ key }}">{{ account }}</option>
       {% endfor %}
   </select>
<input type="submit">    
</form>

I found the cause: in settings.py I had added: django.middleware.csrf.CsrfViewMiddleware but not: django.middleware.csrf.CsrfResponseMiddleware.

So add django.middleware.csrf.CsrfResponseMiddleware after django.middleware.csrf.CsrfViewMiddleware and django.middleware.common.CommonMiddleware and you are good to go.