code: def fix_errors(config, validation):
      
      for e in flatten_errors(config, validation):
          sections, key, err = e
          sec = config
          for section in sections:
              sec = sec[section]
          if key is not None:
              sec[key] = sec.default_values.get(key, sec[key])
          else:
              sec.walk(set_to_default)
      return config
docs: Replace errors with their default values
  
      :param config: a validated ConfigObj to fix
      :type config: ConfigObj
      :param validation: the resuts of the validation
      :type validation: ConfigObj
      :returns: The altered config (does alter it in place though)
      :raises: None