old_contents: # Licensed to the Apache Software Foundation (ASF) under one or more
  # contributor license agreements.  See the NOTICE file distributed with
  # this work for additional information regarding copyright ownership.
  # The ASF licenses this file to You 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.
  
  from libcloud.compute.types import Provider
  from libcloud.compute.providers import get_driver
  
  EC2 = get_driver(Provider.EC2)
  Rackspace = get_driver(Provider.RACKSPACE)
  
  drivers = [EC2('access key id', 'secret key', region='us-east-1'),
             Rackspace('username', 'api key', region='iad')]
  
  nodes = [driver.list_nodes() for driver in drivers]
  
  print(nodes)
  # [ <Node: provider=Amazon, status=RUNNING, name=bob, ip=1.2.3.4.5>,
  # <Node: provider=Rackspace, status=REBOOT, name=korine, ip=6.7.8.9.10>, ... ]
  
  # grab the node named "test"
  node = [n for n in nodes if n.name == 'test'][0]
  
  # reboot "test"
  node.reboot()
  
new_contents: # Licensed to the Apache Software Foundation (ASF) under one or more
  # contributor license agreements.  See the NOTICE file distributed with
  # this work for additional information regarding copyright ownership.
  # The ASF licenses this file to You 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.
  
  from libcloud.compute.types import Provider
  from libcloud.compute.providers import get_driver
  
  EC2 = get_driver(Provider.EC2)
  Rackspace = get_driver(Provider.RACKSPACE)
  
  drivers = [EC2('access key id', 'secret key', region='us-east-1'),
             Rackspace('username', 'api key', region='iad')]
  
  nodes = []
  for driver in drivers:
      nodes.extend(driver.list_nodes())
  
  print(nodes)
  # [ <Node: provider=Amazon, status=RUNNING, name=bob, ip=1.2.3.4.5>,
  # <Node: provider=Rackspace, status=REBOOT, name=korine, ip=6.7.8.9.10>, ... ]
  
  # grab the node named "test"
  node = [n for n in nodes if n.name == 'test'][0]
  
  # reboot "test"
  node.reboot()
  
subject: Fix issue detected by mypy.