code: def parse_cron_line(self, line):
          
          stripped = line.strip()
  
          if stripped and stripped.startswith('#') is False:
              rexres = self.rex.search(stripped)
              if rexres:
                  return ' '.join(rexres.group(1).split())
  
          return None
docs: Parses crontab line and returns only starting time string
  
          Args:
              line: crontab line
          Returns:
              Time part of cron line