old_contents: #!/usr/bin/env python
  
  # Copyright 2015, Google, Inc.
  # 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.
  
  """Command-line application to list all projects and datasets in BigQuery.
  
  This sample is used on this page:
  
      https://cloud.google.com/bigquery/docs/managing_jobs_datasets_projects
  
  For more information, see the README.md under /bigquery.
  """
  
  import argparse
  from pprint import pprint
  
  from googleapiclient import discovery
  from oauth2client.client import GoogleCredentials
  from six.moves.urllib.error import HTTPError
  
  
  # [START list_datasets]
  def list_datasets(bigquery, project):
      try:
          datasets = bigquery.datasets()
          list_reply = datasets.list(projectId=project).execute()
          print('Dataset list:')
          pprint(list_reply)
  
      except HTTPError as err:
          print('Error in list_datasets: %s' % err.content)
          raise err
  # [END list_datasets]
  
  
  # [START list_projects]
  def list_projects(bigquery):
      try:
          # Start training on a data set
          projects = bigquery.projects()
          list_reply = projects.list().execute()
  
          print('Project list:')
          pprint(list_reply)
  
      except HTTPError as err:
          print('Error in list_projects: %s' % err.content)
          raise err
  # [END list_projects]
  
  
  def main(project_id):
      credentials = GoogleCredentials.get_application_default()
      # Construct the service object for interacting with the BigQuery API.
      bigquery = discovery.build('bigquery', 'v2', credentials=credentials)
  
      list_datasets(bigquery, project_id)
      list_projects(bigquery)
  
  if __name__ == '__main__':
      parser = argparse.ArgumentParser(
          description=__doc__,
          formatter_class=argparse.RawDescriptionHelpFormatter)
      parser.add_argument('project_id', help='the project id to list.')
  
      args = parser.parse_args()
  
      main(args.project_id)
  
new_contents: #!/usr/bin/env python
  
  # Copyright 2015, Google, Inc.
  # 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.
  
  """Command-line application to list all projects and datasets in BigQuery.
  
  This sample is used on this page:
  
      https://cloud.google.com/bigquery/docs/managing_jobs_datasets_projects
  
  For more information, see the README.md under /bigquery.
  """
  
  import argparse
  from pprint import pprint
  
  from googleapiclient import discovery
  from oauth2client.client import GoogleCredentials
  from six.moves.urllib.error import HTTPError
  
  
  # [START list_datasets]
  def list_datasets(bigquery, project):
      try:
          datasets = bigquery.datasets()
          list_reply = datasets.list(projectId=project).execute()
          print('Dataset list:')
          pprint(list_reply)
  
      except HTTPError as err:
          print('Error in list_datasets: %s' % err.content)
          raise err
  # [END list_datasets]
  
  
  # [START list_projects]
  def list_projects(bigquery):
      try:
          projects = bigquery.projects()
          list_reply = projects.list().execute()
  
          print('Project list:')
          pprint(list_reply)
  
      except HTTPError as err:
          print('Error in list_projects: %s' % err.content)
          raise err
  # [END list_projects]
  
  
  def main(project_id):
      credentials = GoogleCredentials.get_application_default()
      # Construct the service object for interacting with the BigQuery API.
      bigquery = discovery.build('bigquery', 'v2', credentials=credentials)
  
      list_datasets(bigquery, project_id)
      list_projects(bigquery)
  
  if __name__ == '__main__':
      parser = argparse.ArgumentParser(
          description=__doc__,
          formatter_class=argparse.RawDescriptionHelpFormatter)
      parser.add_argument('project_id', help='the project id to list.')
  
      args = parser.parse_args()
  
      main(args.project_id)
  
subject: Remove stray comment (#440)