def invalidate_one(self, *args, **kw):
        "Invalidate the cache entry for a particular set of arguments for this function"
        key = (args, tuple(sorted(kw.items())))
        if self._store.has_key(key):
            del self._store[key]
Invalidate the cache entry for a particular set of arguments for this function
recipes/Python/442513_Caching_decorator_timeout_selective/recipe-442513.py