docs: def getconf(
              self, conf=None, paths=None, drivers=None, logger=None, modules=None
      ):
          """Get a configuration from paths.
  
          :param conf: conf to update. Default this conf.
          :type conf: Configuration, Category or Parameter
          :param str(s) paths: list of conf files. Default this paths.
          :param Logger logger: logger to use for logging info/error messages.
          :param list drivers: ConfDriver to use. Default this drivers.
          :param list modules: modules to reload before.
          :return: not resolved configuration.
          :rtype: Configuration
          """
  
          result = None
  
          self.loadmodules(modules=modules)
          modules = []
  
          conf = self._toconf(conf)
  
          # start to initialize input params
          if conf is None:
              conf = self.conf.copy()
  
          else:
              selfconf = self.conf.copy()
              selfconf.update(conf)
              conf = selfconf
  
          if paths is None:
              paths = self.paths
  
          if isinstance(paths, string_types):
              paths = [paths]
  
          if drivers is None:
              drivers = self.drivers
  
          if logger is None:
              logger = self.logger
  
          # iterate on all paths
          for path in paths:
  
              rscconf = None
  
              for driver in drivers:  # find the best driver
  
                  rscconf = driver.getconf(path=path, conf=conf, logger=logger)
  
                  if rscconf is None:
                      continue
  
                  conf.update(rscconf)
  
              if rscconf is None:
                  # if no conf found, display a warning log message
                  if logger is not None:
                      logger.warning(
                          'No driver found among {0} for processing {1}'.format(
                              drivers, path
                          )
                      )
  
          result = conf
  
          return result