An error occurs when creating the cloud logging client

[jaeseunglee]

I would like to use the following method without setting environment variables.

from google.cloud import logging
client = logging.Client.from_service_account_json(path of credentials.json)

However, the following error occurs.

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/dist-packages/google/cloud/client.py", line 72, in from_service_account_json
    return cls(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/google/cloud/logging/client.py", line 107, in __init__
    project=project, credentials=credentials, _http=_http)
  File "/usr/local/lib/python2.7/dist-packages/google/cloud/client.py", line 213, in __init__
    _ClientProjectMixin.__init__(self, project=project)
  File "/usr/local/lib/python2.7/dist-packages/google/cloud/client.py", line 169, in __init__
    project = self._determine_default(project)
  File "/usr/local/lib/python2.7/dist-packages/google/cloud/client.py", line 182, in _determine_default
    return _determine_default_project(project)
  File "/usr/local/lib/python2.7/dist-packages/google/cloud/_helpers.py", line 181, in _determine_default_project
    _, project = google.auth.default()
  File "/usr/local/lib/python2.7/dist-packages/google/auth/_default.py", line 285, in default
    raise exceptions.DefaultCredentialsError(_HELP_MESSAGE)
google.auth.exceptions.DefaultCredentialsError: Could not automatically determine credentials. Please set GOOGLE_APPLICATION_CREDENTIALS or
explicitly create credential and re-run the application. For more
information, please see
https://developers.google.com/accounts/docs/application-default-credentials.

Is there a way to use without errors?

I do not want to use environment variables, but I want to use the credentials file directly when creating a Client object.

[theacodes]

I think you need to also pass in the project explicitly in this case. See googleapis/google-cloud-python#1883.

For what it's worth, we highly recommend using the environment variable.

Closing, but please comment if that isn't the solution to your problem).