2

我正在为 Google Cloud Vision API 做“标签检测”教程。
当我像这样将图像传递给命令时，我希望得到一些 json，告诉我图像中有什么。

但是，我收到了这个错误。

    >python label_request.py faulkner.jpg 
No handlers could be found for logger "oauth2client.util"
WARNING:root:No module named locked_file
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/site-packages/googleapiclient/discovery_cache/__init__.py", line 38, in autodetect
    from . import file_cache
  File "/usr/local/lib/python2.7/site-packages/googleapiclient/discovery_cache/file_cache.py", line 32, in <module>
    from oauth2client.locked_file import LockedFile
ImportError: No module named locked_file
Traceback (most recent call last):
  File "label_request.py", line 44, in <module>
    main(args.image_file)
  File "label_request.py", line 18, in main
    service = build('vision', 'v1', http, discoveryServiceUrl=API_DISCOVERY_FILE)
  File "/usr/local/lib/python2.7/site-packages/oauth2client/util.py", line 140, in positional_wrapper
    return wrapped(*args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/googleapiclient/discovery.py", line 202, in build
    raise e
googleapiclient.errors.HttpError: <HttpError 403 when requesting https://vision.googleapis.com/$discovery/rest?version=v1 returned "Project has not activated the vision.googleapis.com API. Please enable the API for project google.com:cloudsdktool (#32555940559).">

这里发生了很多事情。
但项目 API已启用。
所以这部分错误信息是错误的。

似乎“最新版本的 oauth2client v2.0.0 发生了变化，破坏了与 google-api-python-client 模块的兼容性”。
https://stackoverflow.com/a/35492604/2341218

我应用了这个修复...

pip install --upgrade git+https://github.com/google/google-api-python-client

应用此修复程序后，我得到的错误更少...

    >python label_request.py faulkner.jpg 
No handlers could be found for logger "oauth2client.util"
Traceback (most recent call last):
  File "label_request.py", line 44, in <module>
    main(args.image_file)
  File "label_request.py", line 18, in main
    service = build('vision', 'v1', http, discoveryServiceUrl=API_DISCOVERY_FILE)
  File "/usr/local/lib/python2.7/site-packages/oauth2client/util.py", line 137, in positional_wrapper
    return wrapped(*args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/googleapiclient/discovery.py", line 209, in build
    raise e
googleapiclient.errors.HttpError: <HttpError 403 when requesting https://vision.googleapis.com/$discovery/rest?version=v1 returned "Project has not activated the vision.googleapis.com API. Please enable the API for project google.com:cloudsdktool (#32555940559).">

似乎此错误消息：“找不到记录器“oauth2client.util”的处理程序实际上掩盖了更详细的警告/错误消息，我可以通过添加此代码看到更详细的消息...

import logging 
logging.basicConfig()

https://stackoverflow.com/a/29966147/2341218

    >python label_request.py faulkner.jpg 
WARNING:oauth2client.util:build() takes at most 2 positional arguments (3 given)
Traceback (most recent call last):
  File "label_request.py", line 47, in <module>
    main(args.image_file)
  File "label_request.py", line 21, in main
    service = build('vision', 'v1', http, discoveryServiceUrl=API_DISCOVERY_FILE)
  File "/usr/local/lib/python2.7/site-packages/oauth2client/util.py", line 137, in positional_wrapper
    return wrapped(*args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/googleapiclient/discovery.py", line 209, in build
    raise e
googleapiclient.errors.HttpError: <HttpError 403 when requesting https://vision.googleapis.com/$discovery/rest?version=v1 returned "Project has not activated the vision.googleapis.com API. Please enable the API for project google.com:cloudsdktool (#32555940559).">

所以不，我被这个错误消息困住了：
WARNING:oauth2client.util:build() 最多需要 2 个位置参数（给定 3 个）

有人建议，可以通过使用命名参数而不是位置符号来避免此错误。
https://stackoverflow.com/a/16643215/2341218

但是，我不确定我可以在哪里进行此更改。
我实际上没有在代码中看到 oauth2client.util:build() 函数。
这是谷歌代码（稍作修改）：

    >cat label_request.py
import argparse
import base64
import httplib2

from apiclient.discovery import build
from oauth2client.client import GoogleCredentials

import logging
logging.basicConfig()

def main(photo_file):
  '''Run a label request on a single image'''

  API_DISCOVERY_FILE = 'https://vision.googleapis.com/$discovery/rest?version=v1'
  http = httplib2.Http()

  credentials = GoogleCredentials.get_application_default().create_scoped(
      ['https://www.googleapis.com/auth/cloud-platform'])
  credentials.authorize(http)

  service = build('vision', 'v1', http, discoveryServiceUrl=API_DISCOVERY_FILE)

  with open(photo_file, 'rb') as image:
    image_content = base64.b64encode(image.read())
    service_request = service.images().annotate(
      body={
        'requests': [{
          'image': {
            'content': image_content
           },
          'features': [{
            'type': 'LABEL_DETECTION',
            'maxResults': 1,
           }]
         }]
      })
    response = service_request.execute()
    label = response['responses'][0]['labelAnnotations'][0]['description']
    print('Found label: %s for %s' % (label, photo_file))
    return 0

if __name__ == '__main__':
  parser = argparse.ArgumentParser()
  parser.add_argument(
    'image_file', help='The image you\'d like to label.')
  args = parser.parse_args()
  main(args.image_file)
4

2 回答 2

4

我遇到了完全相同的问题，我刚刚解决了这个代码行（你必须安装 gcloud）：

gcloud auth activate-service-account --key-file <service-account file.json>

进而：

$ export GOOGLE_APPLICATION_CREDENTIALS=<path_to_service_account_file>

希望有帮助！

于 2016-03-05T10:17:44.060 回答
4

发现模块的构建方法的文档位于此处： https ://google-api-python-client.googlecode.com/hg/docs/epy/apiclient.discovery-module.html#build

调用语法是：

build(serviceName, version, http=None, discoveryServiceUrl=DISCOVERY_URI,
developerKey=None, model=None, requestBuilder=HttpRequest)

特别是， build 需要两个位置参数和最多五个可选的命名参数。如果你想传递一个名为 http 的 http 处理程序，你可以调用 build

service = build('vision', 'v1', http=http, discoveryServiceUrl=API_DISCOVERY_FILE)

如果你这样打电话

service = build('vision', 'v1', discoveryServiceUrl=API_DISCOVERY_FILE)

build 将使用默认的 http 处理程序。无论哪种方式，您都不应该再看到参数警告。

于 2016-04-12T17:47:50.087 回答