def lset(self, key, index, value):
        self._send('LSET', key, index, value)
        return self.getResponse()
Test if it install packages using the pkgutil tool.
dataset/ETHPy150Open deldotdr/txRedis/txredis/client.py/RedisClient.lset--crossover with--dataset/ETHPy150Open saltstack/salt/tests/unit/modules/pkgutil_test.py/PkgutilTestCase.test_install