[Python] GoogleAuth getting "invalid grant: Bad Request" in call to LocalWebserverAuth()

Here's a Python script in its entirety:

from pydrive.auth import GoogleAuth

gauth = GoogleAuth()
gauth.LoadClientConfigFile("client_secrets.json")
print(f'==== called LoadClientConfigFile', flush=True)
gauth.LocalWebserverAuth() # Prompt for authentication via web browser


When I run it, I get the following:

==== called LoadClientConfigFile
Traceback (most recent call last):
File "C:\Users\r\.virtualenvs\pygmu-oJfXpe_C\Lib\site-packages\pydrive\auth.py", line 475, in Refresh
self.credentials.refresh(self.http)
File "C:\Users\r\.virtualenvs\pygmu-oJfXpe_C\Lib\site-packages\oauth2client\client.py", line 545, in refresh
self._refresh(http)
File "C:\Users\r\.virtualenvs\pygmu-oJfXpe_C\Lib\site-packages\oauth2client\client.py", line 761, in _refresh
self._do_refresh_request(http)
File "C:\Users\r\.virtualenvs\pygmu-oJfXpe_C\Lib\site-packages\oauth2client\client.py", line 819, in _do_refresh_request
raise HttpAccessTokenRefreshError(error_msg, status=resp.status)
oauth2client.client.HttpAccessTokenRefreshError: invalid_grant: Bad Request

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "C:\Users\r\Projects\pygmu\t1.py", line 6, in <module>
gauth.LocalWebserverAuth() # Prompt for authentication via web browser
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\r\.virtualenvs\pygmu-oJfXpe_C\Lib\site-packages\pydrive\auth.py", line 120, in _decorated
self.Refresh()
File "C:\Users\r\.virtualenvs\pygmu-oJfXpe_C\Lib\site-packages\pydrive\auth.py", line 477, in Refresh
raise RefreshError('Access token refresh failed: %s' % error)
pydrive.auth.RefreshError: Access token refresh failed: invalid_grant: Bad Request


Given that the error happens after the call to LoadClientConfigFile(), I suspect the issue might be with the call to LocalWebserverAuth().

Any ideas on how to diagnose and/or fix this?

Update


Note that no web server window appears, so I'm not sure where the problem lies.

Environment

• Python 3.12
• Windows 11 Pro, v 23H2
• Available Browser(s): Firefox, Chrome, Edge

Update 2


Based on a hint from @LindaLawton-DaImTo, my code may be out of date. I'm revisiting https://developers.google.com/drive/api/guides/about-sdk and https://developers.google.com/drive/api/quickstart/js to make sure I'm using the current API. Standby...

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