avocado-framework/avocado

import time

from avocado.utils.process import SubProcess
from avocado.utils.ssh import Session

with Session("host", user="root", key="/path/to/key") as s:
    print("connected")
    procs = []
    cmd = s.get_raw_ssh_command("sleep 5")
    for i in range(10):
        p = SubProcess(cmd)
        print(p.start())
        procs.append(p)

    while True:
        for proc in procs:
            proc.poll()

        if all([p.result.exit_status is not None for p in procs]):
            print("all finished")
            break

        time.sleep(1)
        print("working...")

print("session closed")