python的元注释
python 的元注释还是很方便的：@cf.cache_func(name=lambda * args, **kwargs:"blog:top:comments:%s" % args.id,
expired=60 * 5)
def get_top_comments(self, n=3):
from comment.models import Comment
return Comment.objects.filter(object_id=self.id, category=0).order_by('-add_datetime')[:n]
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