def check_restructuredtext(self):
        """Checks if the long string fields are reST-compliant."""
        data = self.distribution.get_long_description()
        for warning in self._check_rst_data(data):
            line = warning[-1].get('line')
            if line is None:
                warning = warning[1]
            else:
                warning = '{} (line {})'.format(warning[1], line)
            self.warn(warning)
Checks if the long string fields are reST-compliant.
product/gradle-plugin/src/main/python/setuptools/_distutils/command/check.py