size.py 文件源码

def _get_size(item, seen):
    known_types = {dict: lambda d: chain.from_iterable(d.items())}
    default_size = getsizeof(0)

    def size_walk(item):
        if id(item) in seen:
            return 0
        seen.add(id(item))
        s = getsizeof(item, default_size)
        for _type, fun in known_types.iteritems():
            if isinstance(item, _type):
                s += sum(map(size_walk, fun(item)))
                break
        return s

    return size_walk(item)