fetching exit status hangs in paramiko

[saisankalpj]

Hi,

I am using paramiko library to run interactive shell.
As per my requirement ,I needed to execute a command (say command3) only after executing command1 and command2 parallely.So below is my code to do same

        



        ssh = paramiko.SSHClient()
        ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        ssh.connect(HOSTNAME, port=PORT, username=USERNAME, password=PASSWORD)
        connection = ssh.invoke_shell()

        connection.send("cd /opt \n")

        commands = """
       command1
       command2
        """
        #Parallel execution of command1 and command2
        task = [command for command in commands.split('/n')]
        with concurrent.futures.ThreadPoolExecutor() as executor:
            executor.map(connection.send, task)
            time.sleep(1)
       
        result1=connection.recv(600000)
        time.sleep(1)
        result=connection.recv_exit_status()
        print(result)
       #If command1 and command2 are successful ,then here i need to run command3
        
        time.sleep(1)
        

        ssh.close()

But my above code doesnt print anything and i am not receiving any response.The code is hanging.
How do i proceed now?
Thanks

[nilamo]

 task = [command for command in commands.split('/n')]

What do you see if you add print(task) right after that?
What if you replace '/n' with '\n'?

[saisankalpj]

print(task) returns list of the commands i mentioned,like

Output:
['\ncommand1;\ncommand2]

Replacing /n with \n returns

Output:
[' ','command1','command2']

[nilamo]

Does it still hang, once each command is a separate item, and after you remove that empty leading task?