gistfile1.txt

from oauth2client.client import flow_from_clientsecrets
from oauth2client.client import OAuth2WebServerFlow
from oauth2client.file import Storage

storage = Storage('a_credentials_file')
credentials = storage.get()
if not credentials:
    flow = flow_from_clientsecrets('client_secrets.json',
     scope='https://www.googleapis.com/auth/admin.reports.audit.readonly',
     redirect_uri='urn:ietf:wg:oauth:2.0:oob')
    auth_uri = flow.step1_get_authorize_url()
    print auth_uri
    code = raw_input("Auth token: ")
    credentials = flow.step2_exchange(code)
    storage.put(credentials)


http = httplib2.Http()
http = credentials.authorize(http)