如何从本地python应用程序访问谷歌云存储?

时间:2016-08-29 23:32:33

标签: python google-app-engine google-cloud-storage google-cloud-platform

当我的应用程序部署到gae时,我可以访问gcs,但我想在开发期间从本地计算机访问gcs。我该怎么做呢?

这是我尝试在gcs上打开文件时得到的回溯:

Traceback (most recent call last):
  File "/Users/alvinsolidum/Downloads/google_appengine/google/appengine/runtime/wsgi.py", line 267, in Handle
    result = handler(dict(self._environ), self._StartResponse)
  File "/Users/alvinsolidum/Downloads/google_appengine/lib/webapp2-2.3/webapp2.py", line 1519, in __call__
    response = self._internal_error(e)
  File "/Users/alvinsolidum/Downloads/google_appengine/lib/webapp2-2.3/webapp2.py", line 1511, in __call__
    rv = self.handle_exception(request, response, e)
  File "/Users/alvinsolidum/Downloads/google_appengine/lib/webapp2-2.3/webapp2.py", line 1505, in __call__
    rv = self.router.dispatch(request, response)
  File "/Users/alvinsolidum/Downloads/google_appengine/lib/webapp2-2.3/webapp2.py", line 1253, in default_dispatcher
    return route.handler_adapter(request, response)
  File "/Users/alvinsolidum/Downloads/google_appengine/lib/webapp2-2.3/webapp2.py", line 1077, in __call__
    return handler.dispatch()
  File "/Users/alvinsolidum/Downloads/google_appengine/lib/webapp2-2.3/webapp2.py", line 547, in dispatch
    return self.handle_exception(e, self.app.debug)
  File "/Users/alvinsolidum/Downloads/google_appengine/lib/webapp2-2.3/webapp2.py", line 545, in dispatch
    return method(*args, **kwargs)
  File "/Users/alvinsolidum/Documents/fallsafety-dataflow/preprocess/main.py", line 74, in get
    self.to_csv()
  File "/Users/alvinsolidum/Documents/fallsafety-dataflow/preprocess/main.py", line 41, in to_csv
    compressed_flo    = gcs.open(read_filepath, 'r')
  File "/Users/alvinsolidum/Documents/fallsafety-dataflow/preprocess/lib/cloudstorage/cloudstorage_api.py", line 103, in open
    offset=offset)
  File "/Users/alvinsolidum/Documents/fallsafety-dataflow/preprocess/lib/cloudstorage/storage_api.py", line 249, in __init__
    errors.check_status(status, [200], path, resp_headers=headers, body=content)
  File "/Users/alvinsolidum/Documents/fallsafety-dataflow/preprocess/lib/cloudstorage/errors.py", line 132, in check_status
    raise NotFoundError(msg)
NotFoundError: Expect status [200] from Google Storage. But got status 404.
Path: '/fallsafety-test-general/apple-watch/continuous/active/54d0044919e92b0c00c29555-29391CEA593C4D798A1EA08BD23DA47E-0002-continuous.csv.gz'.
Request headers: None.
Response headers: {'date': 'Mon, 29 Aug 2016 23:15:49 GMT', 'server': 'Development/2.0', 'connection': 'close'}.
Body: ''.
Extra info: None.

1 个答案:

答案 0 :(得分:4)

啊,看起来你正在为Python使用appengine-gcs-client。在本地开发服务器上运行时,客户端默认使用本地虚假版本的GCS(请参阅响应标题“Server:Development / 2.0”?)。我猜你正在寻找一个你没有上传到当地假货的真实GCS对象。

你可以通过上传有问题的对象作为服务器初始化的一部分,使用不同的库(gcloud-python非常好)或禁用本地假,你可以通过设置SERVER_SOFTWARE环境来解决这个问题。变量:

# Logic for whether to use local fake is here: https://github.com/GoogleCloudPlatform/appengine-gcs-client/blob/f9dbbd43ec431f739aa33a44cf24d32a19579f33/python/src/cloudstorage/common.py#L387
os.environ['SERVER_SOFTWARE'] = 'Development (remote_api)/1.0'
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