code: def configure(*args, **kwargs):
      
      # Configuration must only happen once: no mechanism for avoiding
      # duplication of handlers exists.
      assert len(HANDLERS) == 0
  
      log_destinations = get_log_destinations()
  
      if 'stderr' in log_destinations:
          # Add stderr output.
          HANDLERS.append(logging.StreamHandler())
  
      def terrible_log_output(s):
          import sys
  
          print(s, file=sys.stderr)
  
      places = [
          # Linux
          '/dev/log',
  
          # FreeBSD
          '/var/run/log',
  
          # Macintosh
          '/var/run/syslog',
      ]
  
      default_syslog_address = places[0]
      for p in places:
          if path.exists(p):
              default_syslog_address = p
              break
  
      syslog_address = kwargs.setdefault('syslog_address',
                                         default_syslog_address)
  
      valid_facility = False
      if 'syslog' in log_destinations:
          facility, valid_facility = get_syslog_facility()
  
          if not valid_facility:
              terrible_log_output('invalid syslog facility level specified')
  
          try:
              # Add syslog output.
              HANDLERS.append(handlers.SysLogHandler(syslog_address,
                                                             facility=facility))
          except EnvironmentError as e:
              if e.errno in [errno.EACCES, errno.ECONNREFUSED]:
                  message = ('wal-e: Could not set up syslog, '
                             'continuing anyway.  '
                             'Reason: {0}').format(errno.errorcode[e.errno])
  
                  terrible_log_output(message)
  
      fs = kwargs.get("format", logging.BASIC_FORMAT)
      dfs = kwargs.get("datefmt", None)
      fmt = IndentFormatter(fs, dfs)
  
      for handler in HANDLERS:
          handler.setFormatter(fmt)
          logging.root.addHandler(handler)
  
      # Default to INFO level logging.
      set_level(kwargs.get('level', logging.INFO))
docs: Configure logging.
  
      Borrowed from logging.basicConfig
  
      Uses the IndentFormatter instead of the regular Formatter
  
      Also, opts the caller into Syslog output, unless syslog could not
      be opened for some reason or another, in which case a warning will
      be printed to the other log handlers.