Hi there. I've been trying to migrate all of the flows that use

shell_run_command

from

prefect-shell

into the new

ShellOperation

class, however, I'm always running into the following error when I try to run ANY command. This is using WINDOWS. Examples:

ShellOperation(commands=["echo Hello"]).run()

From my own experience, I suggest using python's built-in

subprocess

module, especially if you're on windows. You can run a shell task like

import subprocess

subprocess.run(command, stdout=True, check=True)

Under the hood, the shell_run_command and shellOperation also use this module, but I think the problems that come with them aren't worth the trouble.

Hi @Carlos Cueto - thanks for raising this! this looks like a windows-specific issue with how we write commands to a temp dir before executing them, we'll explore this more! and just to clarify @Mansour Zayer, we do not use subprocess.run, we use anyio.open_process

Thanks for the clarification. I think subprocess was used in prefect1 shell tasks (or I might just be mistaken all together)

(or I might just be mistaken all together)

nope! you're totally right, we did use subprocess in v1 version of shell task

Thank you @Nate. I'm surprised that I'm the only one that has reported this. Maybe not a lot of people use Windows agents with local processes and

prefect-shell

@Carlos Cueto I created a branch https://github.com/PrefectHQ/prefect-shell/pull/70 do you mind trying to install this and rerunning? also can you let us know which Python version you’re using?

pip install git+<https://github.com/PrefectHQ/prefect-shell.git@flush_after_write>

@Andrew Huang Installed the branch version you gave me. Running on python 3.10.7, but error also occurs in another machine with 3.9.2. Getting following error now:

Thanks! let me see if I can find another solution. I think we found a misconfiguration in our Windows tests. We can now reproduce on GitHub

It works good now! Appreciate you taking the time to fix this.

No problem! Thank you for raising it. I’ll try to get a release soon..

Thank you for the quick fix.

Thanks for reporting!