Success stories

PyPy has been successfully used in production by various people. Here are few excepts of feedback we received:

LWN short experiment

LWN has a tool they use for parsing “git log”'s output in order to do analysis on the contributors to the Linux kernel. Simply by switching to PyPy they were able to get a 3x speedup, from 63 seconds to 21 seconds, compared to CPython.

“In other ways, PyPy is ready for prime time; it implements the (Python 2.x) language faithfully, and it is fast.”

MyHDL

MyHDL got a speed up by 6-12x compared to CPython, on a range of benchmarks, putting it in the same league as other HDL implementations.

“By simply changing the Python interpreter, MyHDL is playing in the same league as Verilog and VHDL simulators. This is a remarkable achievement, given that Python's power stays completely available. There is no reason anymore to avoid MyHDL because of performance concerns.”