'Returns the symbol as fcode prints it.'

def _get_symbol(self, s):

    if self.printer._settings['human']:
        expr_str = self.printer.doprint(s)
    else:
        (constants, not_supported, expr_str) = self.printer.doprint(s)
        if (constants or not_supported):
            raise ValueError(('Failed    to    print    %s' % str(s)))
    return expr_str.strip()
