我想测试一些与我今天在本地运行的GCS交互的代码。我的计划是:
!export GOOGLE_APPLICATION_CREDENTIALS=<path_to_service_account_file>
storage_client = storage.Client('my-project')
并使用不同的方法/属性。我安装了!pip install --upgrade google-cloud
,但在测试项目符号4(期待身份验证错误)时,我收到了一条消息依赖项问题:
ContextualVersionConflictTraceback (most recent call last)
<ipython-input-13-7346ac058842> in <module>()
----> 1 from google.cloud import storage
2
3
4 # Authenticate to GCS.
5 from google.colab import auth
/usr/local/lib/python2.7/dist-packages/google/cloud/storage/__init__.py in <module>()
33
34 from pkg_resources import get_distribution
---> 35 __version__ = get_distribution('google-cloud-storage').version
36
37 from google.cloud.storage.batch import Batch
/usr/lib/python2.7/dist-packages/pkg_resources/__init__.pyc in get_distribution(dist)
554 dist = Requirement.parse(dist)
555 if isinstance(dist, Requirement):
--> 556 dist = get_provider(dist)
557 if not isinstance(dist, Distribution):
558 raise TypeError("Expected string, Requirement, or Distribution", dist)
/usr/lib/python2.7/dist-packages/pkg_resources/__init__.pyc in get_provider(moduleOrReq)
428 """Return an IResourceProvider for the named module or requirement"""
429 if isinstance(moduleOrReq, Requirement):
--> 430 return working_set.find(moduleOrReq) or require(str(moduleOrReq))[0]
431 try:
432 module = sys.modules[moduleOrReq]
/usr/lib/python2.7/dist-packages/pkg_resources/__init__.pyc in require(self, *requirements)
970 included, even if they were already activated in this working set.
971 """
--> 972 needed = self.resolve(parse_requirements(requirements))
973
974 for dist in needed:
/usr/lib/python2.7/dist-packages/pkg_resources/__init__.pyc in resolve(self, requirements, env, installer, replace_conflicting, extras)
861 # Oops, the "best" so far conflicts with a dependency
862 dependent_req = required_by[req]
--> 863 raise VersionConflict(dist, req).with_context(dependent_req)
864
865 # push the new requirements onto the stack
ContextualVersionConflict: (google-cloud-core 0.27.1 (/usr/local/lib/python2.7/dist-packages), Requirement.parse('google-cloud-core<0.29dev,>=0.28.0'), set(['google-cloud-storage']))
我没有尝试使用Datalab,但是Colaboratory非常方便。
答案 0 :(得分:3)
所以这里有两个问题/问题:
我可以使用服务帐户凭据吗?我怀疑事情会起作用,但你会先被其他东西绊倒。
为什么导入google.cloud.storage
时出错?此处的问题如下:我们在启动时加载了google.cloud
个库的一些子集。然后进行升级,并尝试加载新安装的库,这些库与已加载的库冲突。
最快的解决方法是在安装后重新启动内核(ctrl-m .
),此时应该正常加载。
答案 1 :(得分:0)
是否需要服务帐户?您可以使用I/O example notebook for GCS中显示的配方直接在Colab中使用您的个人凭据。
Colab VM不是共享的,因此关于项目中共享的GCE VM上的用户凭据的典型警告不适用。
如果您需要使用GCS存储Python API的服务帐户,请告诉我,我会做一个例子。