code: def parseWigString(line, scoreType=int):
    
    parts = line.split("\t")
    if (len(parts) < 4):
      raise GenomicIntervalError("failed to parse " + line +
                                 " as wig format, too few fields")
    return GenomicInterval(parts[0].strip(), int(parts[1]), int(parts[2]), None,
                           scoreType(parts[3]))
docs: Parse a string in simple Wig format and return a GenomicInterval.
  
    :param line: the string to be parsed
    :param scoreType: treat the score field as having this type.
    :return: GenomicInterval object representing this wig line; the name of the
             interval will be set to 'X', and it's strand to the default.