Running a PowerShell cmdlet in a Python script

Question

I have a Python script and I want to run a PowerShell cmdlet. I've looked online and the only thing I can find is running a PowerShell script, but I feel like writing a cmdlet to a script and then dot sourcing it for execution would take a lot longer than needed.

I've tried using subprocess.Popen in the following way:

cmd = subprocess.Popen(['C:\WINDOWS\system32\windowspowershell\v1.0\powershell.exe', ps_cmdlet])

But ps_cmdlet is a python string variable with a powershell cmdlet as its value. So, I'm obviously getting a "No such file or directory" error. Is there any way to run a powershell cmdlet in a python script without using things like IronPython?

Thanks!

Robert Cotterman · Accepted Answer · 2019-04-25 05:00:53Z

3

This works rather well

import subprocess
pl = subprocess.Popen(['powershell', 'get-process'], stdout=subprocess.PIPE).communicate()[0]
print(pl.decode('utf-8'))

answered Apr 25, 2019 at 5:00

Robert Cotterman

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1 Comment

Jari Turkia Over a year ago

WIth PowerShell Core 7, I'm doing ['pwsh', '-Command', 'Get-Process'] and it works perfectly! I don't need to detect the version or location of the .exe.

one angry researcher · Accepted Answer · 2014-06-16 15:12:08Z

0

Try the following (ps_cmdlet is a python string):

subprocess.call(ps_cmdlet)

edit: Here is an example that will output your machine's ip configuration to Powershell:

ps_cmdlet = 'ipconfig'
subprocess.call(ps_cmdlet)

another edit: Another way that works for me is:

ps_cmdlet = 'whatever command you would enter in powershell'
p = subprocess.Popen(ps_cmdlet,stdout=subprocess.PIPE)
p.communicate()

edited Jun 16, 2014 at 15:12

answered Jun 16, 2014 at 15:04

one angry researcher

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6 Comments

eltaco431 Over a year ago

I'm still getting a "No such file or directory error". I'm just trying: import subprocess cmdlet = "start-service lanmanserver" subprocess.call(cmdlet)

one angry researcher Over a year ago

Are you sure the error is occuring at subprocess.call?

eltaco431 Over a year ago

Traceback (most recent call last): File "test.py", line 4, in ? subprocess.call(ps_cmdlet) File "/usr/lib64/python2.4/subprocess.py", line 419, in call return Popen(*args, **kwargs).wait() File "/usr/lib64/python2.4/subprocess.py", line 550, in init errread, errwrite) File "/usr/lib64/python2.4/subprocess.py", line 996, in _execute_child raise child_exception OSError: [Errno 2] No such file or directory

tdelaney Over a year ago

This isn't a cmdlet example - ipconfig is an executable sitting on disk. It has nothing to do with powershell.

one angry researcher Over a year ago

Try doubling up on the backslashes in your initial example - "C:\\WINDOWS\\system32\\WindowsPowerShell\\v1.0\\powershell.exe". \ needs to be escaped in Python strings...

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tuomastik · Accepted Answer · 2018-11-26 05:45:29Z

-1

import subprocess
process = subprocess.Popen([r"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe", "get-process"],
                           shell=True, stdin=subprocess.PIPE, stdout=subprocess.PIPE)
process_output = process.read().splitlines()

Above script would help in executing PS Cmdlets from Python.

edited Nov 26, 2018 at 5:45

tuomastik

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answered Nov 26, 2018 at 5:17

Manish R

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