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尝试将 grpcio 库与 Cloud Endpoints Framework 一起拉入时，在通过 dev_appserver.py 运行它时会导致错误。当这些更改被推送到 Google Cloud Platform App Engine 时，错误不会出现。

我尝试更改 google-endpoints、grpcio 和 6 的版本，但没有一个组合解决了错误。我在 Windows 和 Ubuntu 上都遇到了错误。

错误

Traceback (most recent call last):
  File "C:\Users\jwesley\AppData\Local\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\google\appengine\runtime\wsgi.py", line 240, in Handle
    handler = _config_handle.add_wsgi_middleware(self._LoadHandler())
  File "C:\Users\jwesley\AppData\Local\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\google\appengine\runtime\wsgi.py", line 299, in _LoadHandler
    handler, path, err = LoadObject(self._handler)
  File "C:\Users\jwesley\AppData\Local\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\google\appengine\runtime\wsgi.py", line 85, in LoadObject
    obj = __import__(path[0])
  File "C:\Users\jwesley\code_store\gcp_python_sample\python-docs-samples\appengine\standard\endpoints-frameworks-v2\echo\main.py", line 19, in <module>
    import endpoints
  File "C:\Users\jwesley\code_store\gcp_python_sample\python-docs-samples\appengine\standard\endpoints-frameworks-v2\echo\lib\endpoints\__init__.py", line 27, in <module>
    from .apiserving import *
  File "C:\Users\jwesley\code_store\gcp_python_sample\python-docs-samples\appengine\standard\endpoints-frameworks-v2\echo\lib\endpoints\apiserving.py", line 76, in <module>
    from endpoints_management.control import client as control_client
  File "C:\Users\jwesley\code_store\gcp_python_sample\python-docs-samples\appengine\standard\endpoints-frameworks-v2\echo\lib\endpoints_management\__init__.py", line 17, in <module>
    from . import auth, config, control, gen
  File "C:\Users\jwesley\code_store\gcp_python_sample\python-docs-samples\appengine\standard\endpoints-frameworks-v2\echo\lib\endpoints_management\control\__init__.py", line 19, in <module>
    from ..gen import servicecontrol_v1_messages as sc_messages
  File "C:\Users\jwesley\code_store\gcp_python_sample\python-docs-samples\appengine\standard\endpoints-frameworks-v2\echo\lib\endpoints_management\gen\servicecontrol_v1_messages.py", line 23, in <module>
    from apitools.base.py import encoding
  File "C:\Users\jwesley\code_store\gcp_python_sample\python-docs-samples\appengine\standard\endpoints-frameworks-v2\echo\lib\apitools\base\py\__init__.py", line 21, in <module>
    from apitools.base.py.base_api import *
  File "C:\Users\jwesley\code_store\gcp_python_sample\python-docs-samples\appengine\standard\endpoints-frameworks-v2\echo\lib\apitools\base\py\base_api.py", line 27, in <module>
    from six.moves import http_client
ImportError: No module named moves

重新创建问题

确保您已安装 Google Cloud SDK。

克隆 python-docs-samples 存储库： https ://github.com/GoogleCloudPlatform/python-docs-samples.git

导航到回声样本

cd python-docs-samples/appengine/standard/endpoints-frameworks-v2/echo

启动 dev_appserver

dev_appserver.py app.yaml

发送 POST 测试以确保其正常工作。

curl -d '{"content":"time"}' -H "Content-Type: application/json" -X POST http://localhost:8080/_ah/api/echo/v1/echo

随着 echo 应用程序的工作，现在使用 GCP 使用的版本安装 grpcio。

pip install grpcio==1.0.0

编辑 app.yaml 文件以包含 grpcio 库，因此您的文件将如下所示。

runtime: python27
threadsafe: true
api_version: 1
basic_scaling:
  max_instances: 2

#[START_EXCLUDE]
skip_files:
- ^(.*/)?#.*#$
- ^(.*/)?.*~$
- ^(.*/)?.*\.py[co]$
- ^(.*/)?.*/RCS/.*$
- ^(.*/)?\..*$
- ^(.*/)?setuptools/script \(dev\).tmpl$
#[END_EXCLUDE]

handlers:
# The endpoints handler must be mapped to /_ah/api.
- url: /_ah/api/.*
  script: main.api

libraries:
- name: pycrypto
  version: 2.6
- name: ssl
  version: 2.7.11
- name: grpcio
  version: "latest"

# [START env_vars]
env_variables:
  # The following values are to be replaced by information from the output of
  # 'gcloud endpoints services deploy swagger.json' command.
  ENDPOINTS_SERVICE_NAME: YOUR-PROJECT-ID.appspot.com
  ENDPOINTS_SERVICE_VERSION: 2016-08-01r0
# [END env_vars]

再次启动 dev_appserver.py。

dev_appserver.py app.yaml

再次发送 POST。

curl -d '{"content":"time"}' -H "Content-Type: application/json" -X POST http://localhost:8080/_ah/api/echo/v1/echo

我在上面放置的错误应该出现在 dev_appserver.py 的输出中。

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