old_contents: from __future__ import print_function, absolute_import, unicode_literals, division
  
  from datetime import datetime, timedelta
  from textwrap import dedent
  
  from bottle import Bottle
  import pytz
  
  """ Super simple IMS mock.
  
  Just listens on localhost:8080 for the appropriate url, returns a test role and
  a dummy JSON response.
  
  """
  
  
  def expiration_10s_from_now():
      n = datetime.now(tz=pytz.utc) + timedelta(seconds=10)
      return n.strftime("%Y-%m-%dT%H:%M:%SZ")
  
  
  class MockIms(Bottle):
  
      PATH = '/latest/meta-data/iam/security-credentials/'
      json_response = dedent("""
                             {"Code": "Success",
                             "AccessKeyId": "ASIAI",
                             "SecretAccessKey": "XXYYZZ",
                             "Token": "0123456789abcdefghijklmnopqrstuvwxyzAB",
                             "Expiration": "%s",
                             "Type": "AWS-HMAC"}
                             """)
  
      def __init__(self):
          super(MockIms, self).__init__()
  
          self.route(self.PATH, callback=self.get_roles)
          self.route(self.PATH + '<role>', callback=self.get_credentials)
  
      def get_roles(self):
          return 'test_role'
  
      def get_credentials(self, role):
          return self.json_response % expiration_10s_from_now() if role == 'test_role' else ''
  
  if __name__ == "__main__":
      MockIms().run()
  
new_contents: """ Super simple IMS mock.
  
  Just listens on localhost:8080 for the appropriate url, returns a test role and
  a dummy JSON response.
  
  """
  from __future__ import print_function, absolute_import, unicode_literals, division
  
  from datetime import datetime, timedelta
  from textwrap import dedent
  
  from bottle import Bottle
  import pytz
  
  
  
  def expiration_10s_from_now():
      n = datetime.now(tz=pytz.utc) + timedelta(seconds=10)
      return n.strftime("%Y-%m-%dT%H:%M:%SZ")
  
  
  class MockIms(Bottle):
  
      PATH = '/latest/meta-data/iam/security-credentials/'
      json_response = dedent("""
                             {"Code": "Success",
                             "AccessKeyId": "ASIAI",
                             "SecretAccessKey": "XXYYZZ",
                             "Token": "0123456789abcdefghijklmnopqrstuvwxyzAB",
                             "Expiration": "%s",
                             "Type": "AWS-HMAC"}
                             """)
  
      def __init__(self):
          super(MockIms, self).__init__()
  
          self.route(self.PATH, callback=self.get_roles)
          self.route(self.PATH + '<role>', callback=self.get_credentials)
  
      def get_roles(self):
          return 'test_role'
  
      def get_credentials(self, role):
          return self.json_response % expiration_10s_from_now() if role == 'test_role' else ''
  
  if __name__ == "__main__":
      MockIms().run()
  
subject: Move string above the imports so it becomes a docstring