pssh for Windows OS

[phillip-from-oz]

Is it possible to run pssh under Windows OS?

I have python3 installed installed on my Windows 10:
Python 3.10.11 (tags/v3.10.11:7d4cc5a, Apr 5 2023, 00:38:17) [MSC v.1929 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.

Questions

1. Could I install this as:
   In powershell, python3 -m pip pssh
2. What pre-requisites are required?
   I'm using putty as my ssh program
3. What changes would be required?

Thanks for any help

[lilydjwg]

You'll need openssh. Putty is not supported (it's a GUI thing anyway). Run ssh -V to check and make sure you can use the ssh command to login into your servers.

To install this project, you need to clone this repository (or download as a zip file) and run pip install . in the directory.

[phillip-from-oz]

1. I installed open SSH and tested that I can ssh to my servers
2. installed pssh using the instructions provided
3. Run
   python3 pssh
   ModuleNotFoundError: No module named 'fcntl'

Apparently there is not fcntl module for Windows

[lilydjwg]

Retry latest master. Those fcntl calls are removed.

[phillip-from-oz]

Thanks for your quick response.

module 'os' has no attribute 'pipe2'

trace:
python3 pssh -A -i -H "TRAK-TRAIN01" echo "abc"
Traceback (most recent call last):
File "C:\p\pssh-python\bin\pssh", line 119, in
do_pssh(hosts, cmdline, opts)
File "C:\p\pssh-python\bin\pssh", line 75, in do_pssh
manager = Manager(opts)
File "C:\p\pssh-python\psshlib\manager.py", line 38, in init
self.iomap = make_iomap()
File "C:\p\pssh-python\psshlib\manager.py", line 301, in make_iomap
return IOMap()
File "C:\p\pssh-python\psshlib\manager.py", line 188, in init
wakeup_readfd, wakeup_writefd = os.pipe2(os.O_NONBLOCK)
AttributeError: module 'os' has no attribute 'pipe2'. Did you mean: 'pipe'?

[lilydjwg]

OK, there are some SIGCHLD-related code, and I don't know how to do the same thing on Windows. So no, Windows is not supported. Maybe you can try wsl2 which is a Linux virtual machine.

[gch1p]

Also crashes on macOS:

Traceback (most recent call last):
  File "/Users/evgeny/Library/Python/3.13/bin/pssh", line 119, in <module>
    do_pssh(hosts, cmdline, opts)
    ~~~~~~~^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/evgeny/Library/Python/3.13/bin/pssh", line 75, in do_pssh
    manager = Manager(opts)
  File "/Users/evgeny/Library/Python/3.13/lib/python/site-packages/psshlib/manager.py", line 38, in __init__
    self.iomap = make_iomap()
                 ~~~~~~~~~~^^
  File "/Users/evgeny/Library/Python/3.13/lib/python/site-packages/psshlib/manager.py", line 299, in make_iomap
    return PollIOMap()
  File "/Users/evgeny/Library/Python/3.13/lib/python/site-packages/psshlib/manager.py", line 253, in __init__
    super(PollIOMap, self).__init__()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/Users/evgeny/Library/Python/3.13/lib/python/site-packages/psshlib/manager.py", line 188, in __init__
    wakeup_readfd, wakeup_writefd = os.pipe2(os.O_NONBLOCK)
                                    ^^^^^^^^
AttributeError: module 'os' has no attribute 'pipe2'. Did you mean: 'pipe'?

[lilydjwg]

Weird, the doc says pipe2 is available on Unix. I've reverted the change however. Could you try again?

[gch1p]

Works just fine now!

[gch1p]

It seems the pipe2 syscall is implemented in Linux and FreeBSD (at least) but not in Darwin.