Run with Python:
pip-2.7 install cffi PYTHON=python2.7 sh go.sh
Run with PyPy:
pip-pypy install cffi PYTHON=pypy sh go.sh
Run with Py3K:
pip-3.3 install cffi PYTHON=python3.3 sh go.sh
The expected output:
=> now run the native one hello, world => now run the pypy bound one hello, cffi