Example of administrative OAuth 2.0 access to Google Group Settings API.

gapps-groupssettings-adminexample.py

import httplib2
import oauth2client.client
import pprint

from apiclient.discovery import build

serviceacct_email = "<your service account email address>"
f = file('groupssettings-privatekey.p12', 'rb')
client_key = f.read()
f.close()
credentials = oauth2client.client.SignedJwtAssertionCredentials(
                serviceacct_email,
                client_key,
                scope='https://www.googleapis.com/auth/apps.groups.settings',
                sub='<email addy for a gapps domain admin>')

# Create an httplib2.Http object to handle our HTTP requests and authorize it
# with our good Credentials.
http = httplib2.Http()
http = credentials.authorize(http)

# Build a service object for interacting with the API.
service = build(serviceName='groupssettings', version='v1', http=http)
settings = service.groups().get(groupUniqueId='<email addy of a group in your gapps domain>').execute()
# Settings should now be a dict of that group's settings.