How to Set Up Google Application Credentials in Python?

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To set up Google application credentials in Python, you need to follow these steps:

  1. Go to the Google Cloud Console and create a new project or select an existing project.
  2. In the left-hand menu, select “APIs & Services” and then select “Credentials”.
  3. Click on the “Create credentials” button and select “Service account key”.
  4. Fill in the necessary information, including the service account name and role. Choose the JSON key type and click on “Create”.
  5. Save the JSON file to a secure location on your local machine.
  6. Install the google-auth and google-auth-oauthlib packages using pip.
pip install google-auth google-auth-oauthlib
  1. In your Python code, set the GOOGLE_APPLICATION_CREDENTIALS environment variable to the path of the JSON file containing your credentials:
import os
from google.oauth2 import service_account

os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = '/path/to/your/json/file.json'

Note: Replace /path/to/your/json/file.json with the path to the JSON file containing your credentials.

  1. Create a Credentials object in your Python code using the service_account.Credentials.from_service_account_file() method:
credentials = service_account.Credentials.from_service_account_file('/path/to/your/json/file.json')

Note: Replace /path/to/your/json/file.json with the path to the JSON file containing your credentials.

  1. Use the credentials object to authorize requests to Google APIs. For example, to authorize requests to the Google Drive API:
from google.oauth2 import service_account
from googleapiclient.discovery import build

credentials = service_account.Credentials.from_service_account_file('/path/to/your/json/file.json')
drive_service = build('drive', 'v3', credentials=credentials)

# Use the drive_service object to make API requests

That’s it! You now have Google application credentials set up in your Python code and can use them to make authorized requests to Google APIs.

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