Question

我一直在关注Google的BigQuery get started页面，以了解如何设置凭据，但是仍然存在一些错误。这些是我遵循的步骤：

设置免费的服务帐户并创建我的密钥。将其保存到文件夹。
在Anaconda Prompt中将环境变量设置为set GOOGLE_APPLICATION_CREDENTIALS=C:\Users\$Name\OneDrive\Templates\api\BigQuery\creds.json。
在Python中：

from google.cloud import bigquery

client = bigquery.Client()

这导致以下错误。我该如何解决？

Traceback (most recent call last):
File "<ipython-input-2-490cf645c3eb>", line 1, in <module>
client = bigquery.Client()

  File "C:\Users\$Name\Anaconda3\lib\site-packages\google\cloud\bigquery\client.py", line 179, in __init__
    project=project, credentials=credentials, _http=_http

  File "C:\Users\$Name\Anaconda3\lib\site-packages\google\cloud\client.py", line 226, in __init__
    _ClientProjectMixin.__init__(self, project=project)

  File "C:\Users\$Name\Anaconda3\lib\site-packages\google\cloud\client.py", line 178, in __init__
    project = self._determine_default(project)

  File "C:\Users\$Name\Anaconda3\lib\site-packages\google\cloud\client.py", line 193, in _determine_default
    return _determine_default_project(project)

  File "C:\Users\$Name\Anaconda3\lib\site-packages\google\cloud\_helpers.py", line 186, in _determine_default_project
    _, project = google.auth.default()

  File "C:\Users\$Name\Anaconda3\lib\site-packages\google\auth\_default.py", line 338, in default
    raise exceptions.DefaultCredentialsError(_HELP_MESSAGE)

DefaultCredentialsError: Could not automatically determine credentials. Please set GOOGLE_APPLICATION_CREDENTIALS or explicitly create credentials and re-run the application. For more information, please see https://cloud.google.com/docs/authentication/getting-started

Answer 1

您是否在与设置环境变量相同的shell中运行python？如果您在其他shell /标签中运行，则可能需要导出GOOGLE_APPLICATION_CREDENTIALS。

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