Can I call Channel.invoke_shell() without calling Channel.get_pty() beforehand, when NOT using Channel.exec_command()

Question

I have read Paramiko docs multiple times. Still I am not able to find an answer for question I had:

Why can\'t I call channel.invoke_shell() without cal

Answer 1

You can call Channel.invoke_shell() without calling Channel.get_pty().

If it does not work it is a limitation of your server, not of JSch.
And you already know from your previous question that it is so.

With my Win32-OpenSSH 7.7 on Windows 10 Pro 1903, I can use shell session without TTY without any problem:

C:\>echo ipconfig | plink -T username@localhost -pw password
Using username "username".
Microsoft Windows [Version 10.0.18362.356]
(c) 2019 Microsoft Corporation. All rights reserved.

username@COMPUTERNAME C:\Users\username>ipconfig 

Windows IP Configuration


Ethernet adapter Ethernet 2:

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