install_package "stackless-272-export" "http://www.stackless.com/binaries/stackless-272-export.tar.bz2#79a718db998f2cdd95478d2cb54d56f2" standard verify_py27
install_package "stackless-322-export" "http://www.stackless.com/binaries/stackless-322-export.tar.bz2#3a3edcfb4240bdcc580cec2baea60af4" standard verify_py32