text: #!/usr/bin/env python
  #
  # Copyright 2016 Google Inc. All Rights Reserved.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  """This example gets all ad groups for a given campaign.
  
  To add an ad group, run add_ad_group.py.
  
  The LoadFromStorage method is pulling credentials and properties from a
  "googleads.yaml" file. By default, it looks for this file in your home
  directory. For more information, see the "Caching authentication information"
  section of our README.
  
  """
  
  from googleads import adwords
  
  
  PAGE_SIZE = 500
  CAMPAIGN_ID = 'INSERT_CAMPAIGN_ID_HERE'
  
  
  def main(client, campaign_id):
    # Initialize appropriate service.
    ad_group_service = client.GetService('AdGroupService', version='v201806')
  
    # Construct selector and get all ad groups.
    offset = 0
    selector = {
        'fields': ['Id', 'Name', 'Status'],
        'predicates': [
            {
                'field': 'CampaignId',
                'operator': 'EQUALS',
                'values': [campaign_id]
            }
        ],
        'paging': {
            'startIndex': str(offset),
            'numberResults': str(PAGE_SIZE)
        }
    }
    more_pages = True
    while more_pages:
      page = ad_group_service.get(selector)
  
      # Display results.
      if 'entries' in page:
        for ad_group in page['entries']:
          print ('Ad group with name "%s", id "%s" and status "%s" was '
                 'found.' % (ad_group['name'], ad_group['id'],
                             ad_group['status']))
      else:
        print 'No ad groups were found.'
      offset += PAGE_SIZE
      selector['paging']['startIndex'] = str(offset)
      more_pages = offset < int(page['totalNumEntries'])
  
  
  if __name__ == '__main__':
    # Initialize client object.
    adwords_client = adwords.AdWordsClient.LoadFromStorage()
  
    main(adwords_client, CAMPAIGN_ID)
  