Comment by Apreche

I don’t actually use PyPY, but I’m very aware of it. My understanding is that the only reason to use PyPy instead of the default Python is for performance gains. For the vast majority of projects I work on, the performance of our code on the CPU is almost never the bottleneck. The slowness is always in IO, databases, networks, etc.

That said, if I do ever run into a situation where I need my code to perform better, PyPy is high on my list of things to try. It’s nice to know it’s an option.