def old_signing_text(self):
        """Return the text needed for signing using SignatureVersion 1."""
        result = []
        lower_cmp = lambda x, y: cmp(x[0].lower(), y[0].lower())
        for key, value in sorted(self.params.items(), cmp=lower_cmp):
            result.append("%s%s" % (key, value))
        return "".join(result)
Return the text needed for signing using SignatureVersion 1.