如何在ubuntu虚拟串口

如题，ubuntu没有VPSD这样的工具，如果我们需要创建虚拟串口的话可以使用Python脚本

import pty
import os
import select


def mkpty():
    master1, slave = pty.openpty()
    slaveName1 = os.ttyname(slave)
    master2, slave = pty.openpty()
    slaveName2 = os.ttyname(slave)
    print('\nslave device names: ', slaveName1, slaveName2)
    return master1, master2


if __name__ == "__main__":
    master1, master2 = mkpty()
    while True:
        rl, wl, el = select.select([master1, master2], [], [], 1)
        for master in rl:
            data = os.read(master, 128)
            print("read %d data." % len(data))
            if master == master1:
                os.write(master2, data)
            else:
                os.write(master1, data)