@property
    def comment(self):

        if self._comment is not None:
            return self._comment
        elif self._image:
            self._comment = self._parse_comment()
            return self._comment
        else:
            self.comment = ''
            return ''
Get the comment attribute from the card image if not already set.
dataset/ETHPy150Open spacetelescope/PyFITS/pyfits/card.py/Card.comment