How do I start a powershell process with administrator privilges and redirect stdin (os.exec)

You can start a PowerShell process with administrator privileges and redirect standard input (stdin) using the subprocess module in Python. Here's an example code:

pythonCopy code
import subprocess



# command to be executed

command = "powershell.exe"



# arguments for the command

args = ["-ExecutionPolicy", "Bypass", "-NoLogo", "-NoProfile", "-Command", "& {Start-Process PowerShell -Verb RunAs -ArgumentList '-NoLogo', '-NoProfile', '-Command', 'Write-Host \"Hello World!\"'}"]



# create subprocess

p = subprocess.Popen([command] + args, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)



# write input to subprocess

p.stdin.write(b"Hello from stdin\n")



# read output from subprocess

out, err = p.communicate()



# print output

print(out.decode('utf-8'))

In this example, the subprocess.Popen function is used to start a PowerShell process with administrator privileges. The stdin argument is set to subprocess.PIPE to enable input to be sent to the process, and the stdout and stderr arguments are set to subprocess.PIPE to capture the output of the process. The communicate method is used to send input to the process and retrieve its output.

The command executed in this example starts a new PowerShell process with administrator privileges and runs a command to write "Hello World!" to the console. The Write-Host command is wrapped in a script block using the & { } syntax to allow it to be executed as a single argument to the Start-Process cmdlet. The -ArgumentList parameter of the Start-Process cmdlet is used to pass additional arguments to the new PowerShell process, including the -Command parameter to execute the Write-Host command.

Note that the subprocess module provides many other options for controlling the behavior of the subprocess, such as setting environment variables and working directory, specifying timeouts, and redirecting standard output and error.