def run(self):
        if not isinstance(self.state, states.SubstitutionDef):
            raise self.error(
                'Invalid context: the "%s" directive can only be used within '
                'a substitution definition.' % self.name)
        format_str = '\n'.join(self.content) or '%Y-%m-%d'
        if sys.version_info< (3, 0):
            try:
                format_str = format_str.encode(locale_encoding or 'utf-8')
            except UnicodeEncodeError:
                raise self.warning(u'Cannot encode date format string '
                    u'with locale encoding "%s".' % locale_encoding)
        text = time.strftime(format_str)
        if sys.version_info< (3, 0):
            # `text` is a byte string that may contain non-ASCII characters:
            try:
                text = text.decode(locale_encoding or 'utf-8')
            except __HOLE__:
                text = text.decode(locale_encoding or 'utf-8', 'replace')
                raise self.warning(u'Error decoding "%s"'
                    u'with locale encoding "%s".' % (text, locale_encoding))
        return [nodes.Text(text)]
dataset/ETHPy150Open timonwong/OmniMarkupPreviewer/OmniMarkupLib/Renderers/libs/python2/docutils/parsers/rst/directives/misc.py/Date.run