>>> from gcloud.logging import Client
>>> client = Client()
>>> entries, token = client.list_entries(filter_='logName:system-tests')
>>> len(entries)
6
>>> loggers = set([entry.logger for entry in entries])
>>> len(loggers)
3
>>> [logger.name for logger in loggers]
[u'system-tests-logger-1458748033415', u'system-tests-logger-1458757743657', u'system-tests-logger-1458843354552']
>>> for logger in loggers:
...     logger.delete()
... 
Traceback (most recent call last):
  File "<stdin>", line 2, in <module>
  File "gcloud/logging/logger.py", line 130, in delete
    method='DELETE', path='/%s' % self.full_name)
  File "gcloud/connection.py", line 343, in api_request
    error_info=method + ' ' + url)
gcloud.exceptions.NotFound: 404 Requested entity was not found. (DELETE https://logging.googleapis.com/v2beta1/projects/citric-celerity-697/logs/system-tests-logger-1458748033415)