I want to use the python(on server) component in PP,but I experience the following error:"Failed to create a scripting engine for python,SciTegicscriptsit::Initialize:Exception caught,CRunScriptOnserver::Loadinitialscripts:Pipeline Pilot exception rethrown"

I install the ActivePython-2.7.2.5-win64-x64 for my computer

Could somebody tell me what can be the reason for this happing?