new_contents: """
  Copyright 2016-2017 Ellation, 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.
  """
  
  from __future__ import print_function
  import os
  import sys
  import yaml
  
  
  class EFSiteConfig(object):
    """
    Parses ef_site_config.yml
    """
  
    def __init__(self):
      self._ef_site_config = os.path.join(os.getcwd(), "ef_site_config.yml")
  
    @property
    def load(self):
      """Loads the config"""
      try:
        with open(self._ef_site_config, 'r') as yml_file:
          return yaml.safe_load(yml_file)
      except (IOError, yaml.parser.ParserError) as error:
        print("Error: {}".format(error), file=sys.stderr)
        sys.exit(1)
  
subject: add ef_site_config.py to parse yaml