Incidentally, I was working on a 15 year old Python 2 project for a client last week that used Pysco (the predecessor for PyPy). The cool thing about Pysco was

Incidentally, I was working on a 15 year old Python 2 project for a client last week that used Pysco (the predecessor for PyPy). The cool thing about Pysco was that you could just import the library and it would make many operations much faster. If PyPy had a similar mode where you could load it as a library it would have a much easier time gaining traction.