old_contents: import os
  import logging
  try:
      import yaml
  except ImportError:
      pass
  
  
  logger = logging.getLogger(__name__)
  
  
  def create_directory(path):
      """
      Creates a directory if it doesn't already exist.
      """
      # Check if path is a file_path or a dir_path. Dir path is a string that ends with os.sep.
      if path[-1] != os.sep:
          path, file_name = os.path.split(path)
  
      if not os.path.exists(path):
          logger.info("Creating directory: %s", path)
          os.makedirs(path)
  
  
  def load_yaml_contents(file_path):
      logger.info("Loading yaml: %s" % file_path)
  
      with open(file_path) as f:
          contents = yaml.load(f)
  
      return contents
  
new_contents: # Copyright (C) 2015 Google Inc., authors, and contributors <see AUTHORS file>
  # Licensed under http://www.apache.org/licenses/LICENSE-2.0 <see LICENSE file>
  # Created By: jernej@reciprocitylabs.com
  # Maintained By: jernej@reciprocitylabs.com
  
  import os
  import logging
  try:
      import yaml
  except ImportError:
      pass
  
  
  logger = logging.getLogger(__name__)
  
  
  def create_directory(path):
      """
      Creates a directory if it doesn't already exist.
      """
      # Check if path is a file_path or a dir_path. Dir path is a string that
      # ends with os.sep
      if path[-1] != os.sep:
          path, file_name = os.path.split(path)
  
      if not os.path.exists(path):
          logger.info("Creating directory: %s", path)
          os.makedirs(path)
  
  
  def load_yaml_contents(file_path):
      logger.info("Loading yaml: %s" % file_path)
  
      with open(file_path) as f:
          contents = yaml.load(f)
  
      return contents
  
  
  def get_unique_postfix(file_path, extension):
      postfix = 0
      new_path = file_path + str(postfix) + extension
  
      while os.path.isfile(new_path):
          postfix += 1
          new_path = file_path + str(postfix) + extension
  
      return new_path
  
  
  def delete_directory_contents(path):
      for file_name in os.listdir(path):
          os.remove(path + os.sep + file_name)
  
subject: Update file helpers