@property
def split_tokens(self):
    'Split string into tokens (lazy).'
    if (not self._split_tokens_calculated):
        self._split_tokens = self._line_str.split()
        self._split_tokens_calculated = True
    return self._split_tokens
Split string into tokens (lazy).
@property
def split_tokens(self):
    
    if (not self._split_tokens_calculated):
        self._split_tokens = self._line_str.split()
        self._split_tokens_calculated = True
    return self._split_tokens