使用 gcloud-python 在 Google Cloud Storage 中设置元数据
问题描述
我正在尝试使用 gcloud-python 将文件上传到 Google Cloud Storage 并设置一些自定义元数据属性.为了尝试这个，我创建了一个简单的脚本.
I am trying to upload a file to Google Cloud Storage using gcloud-python and set some custom metadata properties. To try this I have created a simple script.
import os
from gcloud import storage
client = storage.Client('super secret app id')
bucket = client.get_bucket('super secret bucket name')
blob = bucket.get_blob('kirby.png')
blob.metadata = blob.metadata or {}
blob.metadata['Color'] = 'Pink'
with open(os.path.expanduser('~/Pictures/kirby.png'), 'rb') as img_data:
blob.upload_from_file(img_data)
我可以上传文件内容.上传文件后，我可以从开发者控制台手动设置元数据并检索它.
I am able to upload the file contents. After uploading the file I am able to manually set metadata from the developer console and retrieve it.
我不知道如何以编程方式上传元数据.
I can't figure out how to upload the metadata programmatically.
解决方案
我们讨论过 在问题跟踪器上，它在实现中出现了一个错误"，或者至少是让用户措手不及的东西.
We discussed on the issue tracker and it surfaced a "bug" in the implementation, or at the very least something which catches users off guard.
通过 blob.metadata 访问 metadata 是只读的.因此，当通过
Accessing metadata via blob.metadata is read-only. Thus when mutating that result via
blob.metadata['Color'] = 'Pink'
它实际上并没有改变存储在 blob 上的元数据.
it doesn't actually change the metadata stored on blob.
目前的修复"是建立起来
The current "fix" is to just build up
metadata = {'Color': 'Pink'}
blob.metadata = metadata
相关文章