PYTHON：HTTP头设置工具（以附件名为例）

import oss2
# 用户授权
auth = oss2.Auth('accessId', 'accessKey')
# oss bucket
bucket = oss2.Bucket(auth, 'http://oss-cn-beijing.aliyuncs.com', 'bucketname')

count = 1
for b in oss2.ObjectIterator(bucket):
    # 通过head_object方法获取object的响应，headers类型为CaseInsensitiveDict
    meta = bucket.head_object(b.key).headers
    # 判断附件头是否设置（此处使用下述方法，或转换为python dict后使用has_keys）
    if meta.keys().count('Content-Disposition') == 0:
        # 获取文件名
        filename = b.key[b.key.rfind('/') + 1:]
        # 更新附件头
        bucket.update_object_meta(b.key, {'Content-Disposition': 'attachment; filename=' + filename})
        print(str(count) + ' processing: ' + filename)
    else:
        print(str(count) + " passed")
    count += 1