Those Python bindings seem to use ctypes, which is indeed slower[1] on PyPy. They recommend[2] using cffi instead. [1] http://pypy.org/performance.html http://

Those Python bindings seem to use ctypes, which is indeed slower[1] on PyPy. They recommend[2] using cffi instead. [1] http://pypy.org/performance.html http://pypy.org/performance.html [2] http://pypy.readthedocs.org/en/latest/extending.html http://pypy.readthedocs.org/en/latest/extending.html