身份验证 - 从计算引擎连接到datalab

Question

我想从datalab连接到bigQuery并执行更新命令。 我运行下面的代码，API &认证：

from google.cloud import bigquery 

# Get everything we possibly can from the service account JSON file 
#set GOOGLE_APPLICATION_CREDENTIALS 
cred = bigquery.Client.from_service_account_json('OrielResearch-da46e752c7ff.json') 
# Instantiates a client 
client = bigquery.Client(project='speedy-emissary-167213',credentials=cred) 
# The name of the dataset 
dataset_name = 'pgp_orielresearch' 
# The name of the table 
table_name = 'update_queries' 
# Perform a synchronous query. 
QUERY = (
    'SELECT * FROM [speedy-emissary-167213:pgp_orielresearch.update_queries]') 
query = client.run_sync_query(QUERY) 
dataset = client.dataset(dataset_name) 
tables, token = dataset.list_tables() 

，并出现以下错误： AttributeError的：“客户”对象有没有属性“授权”

什么想法？

完整的堆栈是：

AttributeErrorTraceback (most recent call last) 
<ipython-input-2-616f54fa35ba> in <module>() 
    19 query = client.run_sync_query(QUERY) 
    20 dataset = client.dataset(dataset_name) 
---> 21 t = dataset.list_tables() 
    22 #query.timeout_ms = TIMEOUT_MS 
    23 #query.run() 

/usr/local/lib/python2.7/dist-packages/google/cloud/bigquery/dataset.py in list_tables(self, max_results, page_token) 
    568   connection = self._client.connection 
    569   resp = connection.api_request(method='GET', path=path, 
--> 570          query_params=params) 
    571   tables = [Table.from_api_repr(resource, self) 
    572     for resource in resp.get('tables',())] 

/usr/local/lib/python2.7/dist-packages/google/cloud/connection.pyc in api_request(self, method, path, query_params, data, content_type, api_base_url, api_version, expect_json, _target_object) 
    344   response, content = self._make_request(
    345    method=method, url=url, data=data, content_type=content_type, 
--> 346    target_object=_target_object) 
    347 
    348   if not 200 <= response.status < 300: 

/usr/local/lib/python2.7/dist-packages/google/cloud/connection.pyc in _make_request(self, method, url, data, content_type, headers, target_object) 
    242   headers['User-Agent'] = self.USER_AGENT 
    243 
--> 244   return self._do_request(method, url, headers, data, target_object) 
    245 
    246  def _do_request(self, method, url, headers, data, 

/usr/local/lib/python2.7/dist-packages/google/cloud/connection.pyc in _do_request(self, method, url, headers, data, target_object) 
    270   :returns: The HTTP response object and the content of the response. 
    271   """ 
--> 272   return self.http.request(uri=url, method=method, headers=headers, 
    273         body=data) 
    274 

/usr/local/lib/python2.7/dist-packages/google/cloud/connection.pyc in http(self) 
    101    self._http = httplib2.Http() 
    102    if self._credentials: 
--> 103     self._http = self._credentials.authorize(self._http) 
    104   return self._http 
    105 

AttributeError: 'Client' object has no attribute 'authorize' 

Answer 1

尝试设置像这样的凭据：

import os 
os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = 'OrielResearch-da46e752c7ff.json' 
from google.cloud.bigquery.client import Client 

client = Client()