Question

我正在为Google Cloud Vision API执行“标签检测”教程当我将图像传递给命令时，我希望能够找回一些json告诉我图像中的内容。

但是，我收到此错误。

    >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).">

这里有很多。
但Project API 已启用 所以这是错误信息的一部分是错误的。

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

我应用了此修复程序......

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).">

看来这个错误信息： “无法找到记录器的处理程序”oauth2client.util“ 实际上是屏蔽了更详细的警告/错误消息并且我可以通过添加此代码来查看更详细的代码...

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).">

所以没有我被困在这个错误信息上：
警告：oauth2client.util：build（）最多需要2个位置参数（给定3个）

有人建议使用命名参数而不是位置表示法来避免此错误 https://stackoverflow.com/a/16643215/2341218

但是，我不确定我可能会在哪里做出这种改变我实际上没有在代码中看到oauth2client.util：build（）函数这是谷歌代码（略有修改）：

    >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)

Answer 1

我有完全相同的问题，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>

然后：

$ export GOOGLE_APPLICATION_CREDENTIALS=<path_to_service_account_file>

希望有所帮助！

Answer 2

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

调用语法为：

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。如果要传递名为http的http处理程序，可以使用

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，你都不应该再看到警告了。

警告：oauth2client.util：build（）最多需要2个位置参数（给定3个）

2 个答案: