Google Cloud SDK 中对 google-auth 的依赖错误？

我正在标准环境应用程序中使用谷歌云存储和谷歌云数据存储API（目前在本地）。

我尝试运行我的测试（使用 pytest）时有一种非常奇怪的行为：我发现，在测试期间，dev_appserver.fix_sys_path命令运行者pytest-beds我正在使用（https://github.com/kaste/pytest-beds/blob/master/testbeds/plugin.py#L35 https://github.com/kaste/pytest-beds/blob/master/testbeds/plugin.py#L35）将捆绑的 google-cloud 库放在我的自定义版本之前：

/Users/username/google-cloud-sdk/platform/google_appengine
/Users/username/google-cloud-sdk/platform/google_appengine/lib/antlr3
/Users/username/google-cloud-sdk/platform/google_appengine/lib/fancy_urllib
/Users/username/google-cloud-sdk/platform/google_appengine/lib/ipaddr
/Users/username/google-cloud-sdk/platform/google_appengine/lib/yaml-3.10
/Users/username/google-cloud-sdk/platform/google_appengine/lib/rsa
/Users/username/google-cloud-sdk/platform/google_appengine/lib/pyasn1
/Users/username/google-cloud-sdk/platform/google_appengine/lib/pyasn1_modules
/Users/username/google-cloud-sdk/platform/google_appengine/lib/httplib2
/Users/username/google-cloud-sdk/platform/google_appengine/lib/oauth2client_devserver
/Users/username/google-cloud-sdk/platform/google_appengine/lib/six-1.9.0
/Users/username/google-cloud-sdk/platform/google_appengine
/Users/username/google-cloud-sdk/platform/google_appengine/lib/simplejson
/Users/username/google-cloud-sdk/platform/google_appengine/lib/django-1.4
/Users/username/google-cloud-sdk/platform/google_appengine/lib/endpoints-1.0
/Users/username/google-cloud-sdk/platform/google_appengine/lib/jinja2-2.6
/Users/username/google-cloud-sdk/platform/google_appengine/lib/protorpc-1.0
/Users/username/google-cloud-sdk/platform/google_appengine/lib/PyAMF-0.6.1
/Users/username/google-cloud-sdk/platform/google_appengine/lib/markupsafe-0.15
/Users/username/google-cloud-sdk/platform/google_appengine/lib/webob-1.2.3
/Users/username/google-cloud-sdk/platform/google_appengine/lib/webapp2-2.5.2
/Users/username/dev/project
/Users/username/.virtualenvs/project/bin
/Users/username/dev/project/app
/Users/username/.virtualenvs/project/lib/python27.zip
/Users/username/.virtualenvs/project/lib/python2.7
/Users/username/.virtualenvs/project/lib/python2.7/plat-darwin
/Users/username/.virtualenvs/project/lib/python2.7/plat-mac
/Users/username/.virtualenvs/project/lib/python2.7/plat-mac/lib-scriptpackages
/Users/username/.virtualenvs/project/Extras/lib/python
/Users/username/.virtualenvs/project/lib/python2.7/lib-tk
/Users/username/.virtualenvs/project/lib/python2.7/lib-old
/Users/username/.virtualenvs/project/lib/python2.7/lib-dynload
/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7
/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin
/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk
/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac
/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages
/Users/username/.virtualenvs/project/lib/python2.7/site-packages

这会导致导入google.auth.crypt.base模块导入失败，因为确实如此not存在于 google-cloud-sdk 附带的软件包版本中，而我可以在 github 上看到版本 1.3.0，这显然与 sdk 附带的版本相同。

同样适用于pyasn1_modules软件包：现有版本0.2.1，发货0.11

我遇到的导入错误是：

from google.auth.crypt import base
ImportError: cannot import name base

and:

from pyasn1_modules import pem
ImportError: cannot import name pem

最后但并非最不重要的一点是环境：MACOSX。

Google Cloud SDK 184.0.0
app-engine-python 1.9.65
app-engine-python-extras 1.9.63
beta 2017.09.15
bq 2.0.28
cloud-datastore-emulator 1.3.0
core 2018.01.05
gcloud
gsutil 4.28

更新：显然，我正在使用google.cloud.storage而根据标准环境的示例，我应该使用（https://github.com/GoogleCloudPlatform/python-docs-samples/blob/master/appengine/standard/storage/appengine-client/main.py#L23 https://github.com/GoogleCloudPlatform/python-docs-samples/blob/master/appengine/standard/storage/appengine-client/main.py#L23), 包cloudstorage。我将更改代码，尝试更新此处的帖子。

UPDATE 2：我已经创建了一个特定的 github 存储库来复制该问题，以防万一。这里是：

https://github.com/brunoripa/gae_import_error https://github.com/brunoripa/gae_import_error

如果测试期间问题完全出在本地主机上，您可以运行： pip 安装密码学

这样 Google 库一开始就不需要 pem。