import subprocess
import ctypes

def ps(ps_command):
    class disable_file_system_redirection:
        _disable = ctypes.windll.kernel32.Wow64DisableWow64FsRedirection
        _revert = ctypes.windll.kernel32.Wow64RevertWow64FsRedirection
        def __enter__(self):
            self.old_value = ctypes.c_long()
            self.success = self._disable(ctypes.byref(self.old_value))
        def __exit__(self, type, value, traceback):
            if self.success:
                self._revert(self.old_value)

    with disable_file_system_redirection():
        process=subprocess.Popen('powershell "%s"'%ps_command, shell=True, stdout=subprocess.PIPE)
    result=process.communicate()
    ret=process.returncode
    if ret==0:
        if result[0]:
            print result[0].strip()
        else:
            print None
            
    else:
        print '%s\n%s'%(str(ret), str(result[1]))

ps(r'Get-ADComputer -Filter * -Property Name,DNSHostName,SamAccountName | Select -Property Name,DNSHostName,SamAccountName')
ps(r'Get-ADuser -Filter * -Property Name,Description | Select -Property Name,Description')