import pywintypes, win32security
sa=pywintypes.SECURITY_ATTRIBUTES()
tmp_sid=win32security.LookupAccountName('','tmp')[0]
sa.SetSecurityDescriptorOwner(tmp_sid,0)
sid=sa.SECURITY_DESCRIPTOR.GetSecurityDescriptorOwner()
print(win32security.LookupAccountSid('',sid))

