'PSDataStreams' object has no attribute 'decode'

Question

I want to execute powershell commands in a remote windows server using python. I am using pypsrp for making connection to remote windows server, then executed client.execute_ps(f'Set-ExecutionPolicy RemoteSigned')

got error - 'PSDataStreams' object has no attribute 'decode'

I am able to connect and copy files from local machine to remote window server - client.copy(source_path, dest_path)

I am using pypsrp module to connect to a remote windows server -

try:
    with Client(server=self.ip, username=self.username, password=psw, auth='ntlm') as client:
    stdout, stderr, rc = client.execute_ps(f'Set-ExecutionPolicy RemoteSigned') 
    error = stderr.decode('utf-8').strip("\n")
    output = stdout.decode('utf-8').strip("\n")
except Exception as e:
    print(e)

Got error - 'PSDataStreams' object has no attribute 'decode'

When I print strout, its empty. Stderr is - stderr ---- <pypsrp.powershell.PSDataStreams object at 0x0000014170402AF0>

How to decode the value of stderr, or what is the correct code to execute powershell commands at remote window server.

Answer 1

execute_ps doesn't support traditional strerr use execute_cmd instead. This is written in execute_ps comment .

Because this runs in a runspace, traditional concepts like stdout, stderr, rc's are no longer relevant. Instead there is a output, error/verbose/debug streams, and a boolean that indicates if the script execution came across an error. If you want the traditional stdout/stderr/rc, use execute_cmd instead.

So, you can get traditional strerr like this.

stdout, stderr, rc = client.execute_cmd('powershell Set-ExecutionPolicy RemoteSigned')