code: def parse(self):
          sub_directory = 'alignak.d'
          dir_name = os.path.dirname(self.configuration_file)
          dir_name = os.path.join(dir_name, sub_directory)
          self.cfg_files = [self.configuration_file]
          if os.path.exists(dir_name):
              for root, _, walk_files in os.walk(dir_name, followlinks=True):
                  for found_file in walk_files:
                      if not re.search(r"\.ini$", found_file):
                          continue
                      self.cfg_files.append(os.path.join(root, found_file))
          print("Loading configuration files: %s " % self.cfg_files)
          self.config = configparser.ConfigParser()
          try:
              self.config.read(self.cfg_files)
              if self.config._sections == {}:
                  print("* bad formatted configuration file: %s " % self.configuration_file)
                  if self.embedded:
                      raise ValueError
                  sys.exit(2)
              for section in self.config.sections():
                  if self.verbose:
                      print("- section: %s" % section)
                  for (key, value) in self.config.items(section):
                      inner_property = "%s.%s" % (section, key)
                      setattr(self, inner_property, value)
                      os.environ[inner_property] = value
                      if self.verbose:
                          print("  %s = %s" % (inner_property, value))
                      if self.export:
                          inner_property = re.sub('[^0-9a-zA-Z]+', '_', inner_property)
                          inner_property = inner_property.upper()
                          print("export %s=%s" % (inner_property, cmd_quote(value)))
          except configparser.ParsingError as exp:
              print("* parsing error in config file : %s\n%s"
                    % (self.configuration_file, exp.message))
              if self.embedded:
                  return False
              sys.exit(3)
          except configparser.InterpolationMissingOptionError as exp:
              print("* incorrect or missing variable: %s" % str(exp))
              if self.embedded:
                  return False
              sys.exit(3)
          if self.verbose:
              print("Configuration file parsed correctly")
          return True