old_contents: #!/bin/env python
  
  
  def unset_empty(list_to_format):
      """Delete all empty element(s) from a given lis
  
      :param list_to_format: A list, List to format
      """
  
      return ' '.join(list_to_format).split()
  
new_contents: #!/bin/env python
  
  
  def unset_empty(list_to_format):
      """Delete all empty element(s) from a given lis
  
      :param list_to_format: A list, List to format
      """
  
      return ' '.join(list_to_format).split()
  
  
  def combine_dicts(dict1, dict2):
      """Combine two dictionnaries into one
  
      :param dict1: A dict, First dict
      :param dict2: A dict, Second dict
      """
  
      result = {}
  
      for k, v in dict1.items():
          if k in dict2.keys():
              if isinstance(dict2[k], dict):
                  result[k] = combine_dicts(v, dict2.pop(k))
          else:
              result[k] = v
      for k, v in dict2.items():
          result[k] = v
      return result
  
subject: add combine_dicts()