copy quickstart.py

https://developers.google.com/sheets/api/quickstart/python
https://github.com/googleworkspace/python-samples/tree/main/sheets/quickstart

quickstart.py

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+from __future__ import print_function
+
+import os.path
+
+from google.auth.transport.requests import Request
+from google.oauth2.credentials import Credentials
+from google_auth_oauthlib.flow import InstalledAppFlow
+from googleapiclient.discovery import build
+from googleapiclient.errors import HttpError
+
+# If modifying these scopes, delete the file token.json.
+SCOPES = ['https://www.googleapis.com/auth/spreadsheets.readonly']
+
+# The ID and range of a sample spreadsheet.
+SAMPLE_SPREADSHEET_ID = '1BxiMVs0XRA5nFMdKvBdBZjgmUUqptlbs74OgvE2upms'
+SAMPLE_RANGE_NAME = 'Class Data!A2:E'
+
+
+def main():
+    """Shows basic usage of the Sheets API.
+    Prints values from a sample spreadsheet.
+    """
+    creds = None
+    # The file token.json stores the user's access and refresh tokens, and is
+    # created automatically when the authorization flow completes for the first
+    # time.
+    if os.path.exists('token.json'):
+        creds = Credentials.from_authorized_user_file('token.json', SCOPES)
+    # If there are no (valid) credentials available, let the user log in.
+    if not creds or not creds.valid:
+        if creds and creds.expired and creds.refresh_token:
+            creds.refresh(Request())
+        else:
+            flow = InstalledAppFlow.from_client_secrets_file(
+                'credentials.json', SCOPES)
+            creds = flow.run_local_server(port=0)
+        # Save the credentials for the next run
+        with open('token.json', 'w') as token:
+            token.write(creds.to_json())
+
+    try:
+        service = build('sheets', 'v4', credentials=creds)
+
+        # Call the Sheets API
+        sheet = service.spreadsheets()
+        result = sheet.values().get(spreadsheetId=SAMPLE_SPREADSHEET_ID,
+                                    range=SAMPLE_RANGE_NAME).execute()
+        values = result.get('values', [])
+
+        if not values:
+            print('No data found.')
+            return
+
+        print('Name, Major:')
+        for row in values:
+            # Print columns A and E, which correspond to indices 0 and 4.
+            print('%s, %s' % (row[0], row[4]))
+    except HttpError as err:
+        print(err)
+
+
+if __name__ == '__main__':
+    main()