Just a tiny nitpick for clarity, I think you mean PyPy rather than "PyPi". :)

PyPI is the Python Package Index. https://en.wikipedia.org/wiki/Python_Package_Index

PyPy is the Python implementation with JIT. https://en.wikipedia.org/wiki/PyPy

(Yes, it is extremely confusing that there are two Python projects with homophonous, nearly-identical names.)