Invoking a PowerShell script from Python
First, Set-ExecutionPolicy Unrestriced is on a per user basis, and a per bitness basis (32-bit is different than 64-bit).
Second, you can override the execution policy from the command line.
psxmlgen = subprocess.Popen([r'C:\WINDOWS\system32\WindowsPowerShell\v1.0\powershell.exe', '-ExecutionPolicy', 'Unrestricted', './buildxml.ps1', arg1, arg2, arg3], cwd=os.getcwd())result = psxmlgen.wait()Apparently you can access the 64-bit PowerShell from 32-bit PowerShell with this path (thanks to @eryksun in comments):
powershell64 = os.path.join(os.environ['SystemRoot'], 'SysNative' if platform.architecture()[0] == '32bit' else 'System32', 'WindowsPowerShell', 'v1.0', 'powershell.exe')
For those of us who wanted to know how to display the values of arg1, arg2 and arg3 after it was passed to powershell, all you need to do is:
Write-Host $args[0]Write-Host $args[1]Write-Host $args[2]