code: def itersplit_to_fields(self, _str):
          
          if self.preparse:
              _str = self.preparse(_str)
  
          _fields = itersplit(_str, self.fsep)
  
          try:
              values = (
                  t[1] for t in izip_longest(self._tuple._fields, _fields))
              return self._tuple(*values)
          except Exception as e:
              log.error(self._tuple)
              log.error(_fields)
              log.exception(e)
              raise
docs: Split (or parse) repository log output into fields
  
          Returns:
              tuple: self._tuple(*values)