code: def valueFromString(self, value, context=None):
          
          if value == 'now':
              return datetime.datetime.now().time()
          elif dateutil_parser:
              return dateutil_parser.parse(value).time()
          else:
              time_struct = time.strptime(value, self.defaultFormat())
              return datetime.time(time_struct.tm_hour,
                                   time_struct.tm_min,
                                   time_struct.tm_sec)
docs: Converts the inputted string text to a value that matches the type from
          this column type.
  
          :param      value | <str>