Bug in Cache when calling has_key

[anonymous]

File "/var/django/mydjangoapp/../mydjangoapp/stories/context_processors.py", line 5, in get_cached_num

if not cache.has_key(which):

File "/var/lib/python-support/python2.4/django/core/cache/backends/locmem.py", line 99, in has_key

del self._cache[key]

KeyError: 'authors'

i do not think, its a bug in my code, when django tries to delete a item, for which i am checking if it even exists.

[(none)]

Milestone post-1.0 deleted

[Malcolm Tredinnick]

As far as I can see, this can only be caused by a thread race, since by the time the line of code in question is executed, we know the key was in the cache from a few lines earlier. I'm avoiding that, but this shouldn't be happening in normal operations, since the locmem cache isn't particularly appropriate for user between multiple threads (every other cache backend is better).

[Malcolm Tredinnick]

(In [9998]) Fixed #9626 -- Fixed a deletion race in the locmem cache.

[mrts]

Malcolm, while you are at it, can you please take a look at #9644 as well? It's the same thing, only in a different location.

[Jacob]

Milestone 1.1 deleted