Django缓存似乎是造成问题

嘿家伙，我刚刚在一些我的代码实现了Django缓存本地内存后端，但它似乎是造成问题。Django缓存似乎是造成问题

我时，试图查看网站（含调试开）出现以下错误：

Traceback (most recent call last): 

    File "/usr/lib/python2.6/dist-packages/django/core/servers/basehttp.py", line 279, in run 
    self.result = application(self.environ, self.start_response) 

    File "/usr/lib/python2.6/dist-packages/django/core/servers/basehttp.py", line 651, in __call__ 
    return self.application(environ, start_response) 

    File "/usr/lib/python2.6/dist-packages/django/core/handlers/wsgi.py", line 245, in __call__ 
    response = middleware_method(request, response) 

    File "/usr/lib/python2.6/dist-packages/django/middleware/cache.py", line 91, in process_response 
    patch_response_headers(response, timeout) 

    File "/usr/lib/python2.6/dist-packages/django/utils/cache.py", line 112, in patch_response_headers 
    response['Expires'] = http_date(time.time() + cache_timeout) 

TypeError: unsupported operand type(s) for +: 'float' and 'str'

我已经检查了我的代码，用于缓存一切似乎是确定。例如，我在中间件中有以下内容。

MIDDLEWARE_CLASSES = (
    'django.contrib.sessions.middleware.SessionMiddleware', 
    'django.contrib.auth.middleware.AuthenticationMiddleware', 
    'django.middleware.cache.UpdateCacheMiddleware', 
    'django.middleware.common.CommonMiddleware', 
    'django.middleware.cache.FetchFromCacheMiddleware', 
    'django.contrib.flatpages.middleware.FlatpageFallbackMiddleware', 
)

我的缓存设置：

CACHE_BACKEND = 'locmem://' 
CACHE_MIDDLEWARE_SECONDS = '3600' 
CACHE_MIDDLEWARE_KEY_PREFIX = 'za' 
CACHE_MIDDLEWARE_ANONYMOUS_ONLY = True

我的一些代码（模板标签）：

def get_featured_images(): 
    """ 
    provides featured images 
    """ 

    cache_key = 'featured_images' 
    images = cache.get(cache_key) 
    if images is None:   
     images = FeaturedImage.objects.all().filter(enabled=True)[:5] 
     cache.set(cache_key, images) 


    return {'images': images}

任何想法可能是什么问题，从它下面的错误信息看起来像django的cache.py中有一个问题？

更新！将时间缓存设置为一个字符串！

来源

2010-05-05 ismail

您将缓存的秒数定义为字符串而不是int。应该是：

CACHE_MIDDLEWARE_SECONDS = 3600

来源

2010-05-05 20:27:22

CACHE_MIDDLEWARE_SECONDS应该是int /浮动，不串：

CACHE_MIDDLEWARE_SECONDS = 3600

来源

2010-05-05 20:28:09 Almad

Django缓存似乎是造成问题

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