google.auth.exceptions.DefaultCredentialsError:

Question

So, I am following the same procedure exactly according to the Google Translate API's Documentation.

The code below was provided in it.

# Imports the Google Cloud client library from google.cloud import translate # Instantiates a client translate_client = translate.Client() # The text to translate text = u'Hello, world!' # The target language target = 'ru' # Translates some text into Russian translation = translate_client.translate( text, target_language=target) print(u'Text: {}'.format(text)) print(u'Translation: {}'.format(translation['translatedText']))

Now when I run this I am returned with the following error:

Traceback (most recent call last): File "test.py", line 5, in <module> translate_client = translate.Client() File "C:\ProgramData\Anaconda3\lib\site-packages\google\cloud\translate_v2\client.py", line 65, in __init__ super(Client, self).__init__(credentials=credentials, _http=_http) File "C:\ProgramData\Anaconda3\lib\site-packages\google\cloud\client.py", line 129, in __init__ credentials, _ = google.auth.default() File "C:\ProgramData\Anaconda3\lib\site-packages\google\auth\_default.py", line 294, in default credentials, project_id = checker() File "C:\ProgramData\Anaconda3\lib\site-packages\google\auth\_default.py", line 165, in _get_explicit_environ_credentials os.environ[environment_vars.CREDENTIALS]) File "C:\ProgramData\Anaconda3\lib\site-packages\google\auth\_default.py", line 89, in _load_credentials_from_file 'File {} was not found.'.format(filename)) google.auth.exceptions.DefaultCredentialsError: File D:\Summer Projects\Translate\social media analysis-2a59d94ba22d.json was not found.

The D:\Summer Projects\Translate\social media analysis-2a59d94ba22d.json is the path where I put my key provided by Google Cloud for this project.

How do I resolve this?

All answers point to put the path of the config.json file. But what if I'm storing the content of config.json into an env var in my production server, how can I use it because it seems that it only accepts file paths. — Moisés Briseño Estrello
– Moisés Briseño Estrello, Commented May 13 at 19:23

ScottMcC · Accepted Answer · 2019-09-10 00:22:09Z

Your need to set an environment variable for GOOGLE_APPLICATION_CREDENTIALS

You can add this in your code by adding in the following lines:

credential_path = "D:\Summer Projects\Translate\social media analysis-2a59d94ba22d.json" os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = credential_path

Complete solution:

# Imports the Google Cloud client library import os from google.cloud import translate credential_path = "D:\Summer Projects\Translate\social media analysis-2a59d94ba22d.json" os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = credential_path # Instantiates a client translate_client = translate.Client() # The text to translate text = u'Hello, world!' # The target language target = 'ru' # Translates some text into Russian translation = translate_client.translate( text, target_language=target) print(u'Text: {}'.format(text)) print(u'Translation: {}'.format(translation['translatedText']))

Additionally, you can find more information about how to set up authentication for Client Libraries in this documentation link.
All answers point to put the path of the config.json file. But what if I'm storing the content of config.json into an env var in my production server, how can I use it because it seems that it only accepts file paths.

Claudio Ivan de la Cruz · Accepted Answer · 2022-08-31 19:53:53Z

If you work on linux, just put this in your python code:

os.environ["GOOGLE_APPLICATION_CREDENTIALS"] = "./Authentication.json"

Azhar Khan · Accepted Answer · 2023-01-02 10:54:57Z

If setting from command prompt:

SET GOOGLE_APPLICATION_CREDENTIALS=C:\work\xxxba6.json

Note: Do not put quotes in the path "C:\work\xxxba6.json".

Google Python scripts cannot handle it.

Jason Hsu · Accepted Answer · 2019-06-14 09:14:00Z

I am now dealing with the vision API. My solution is depend on the answer above.

But the sample code from google is a little bit different with previous code.

For my sample code is

def run_quickstart(): import os import io from google.cloud import vision from google.cloud.vision import types ... # I made the modification here credential_path = "PATH" # for example # credential_path = "projectname-xxxxxxxx.json" # WRONG code # credential_path = "~/Downloads/projectname-xxxxxxxx.json" os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = credential_path

The things need to noticed is that I put the JSON file into the same folder as .py
so the PATH is not actually a real path to point the JSON file
It's only goes to the name of the JSON file, like this projectname-xxxxxxxx.json

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