It has been a few years since there has been a new project embedding the Python interpreter into Verilog. There is a new one on the block, called “Cocotb” built with a definite focus on writing testbenches and running regressions. It is written in a modern dialect of Python and hosted on Git. It is well-documented. I’m impressed with what I’ve seen.
This article gives a little bit of a history of Python and Verilog and describes how Cocotb fits in.
A Brief History
ScriptEDA (2001) [http://embedded.eecs.berkeley.edu/Alumni/pinhong/scriptEDA/,
http://www.scribd.com/doc/3492141/scriptEDA-pinhong] was primarily an example of using SWIG to link a Python interpreter into a Verilog simulator using PLI/VPI. ScriptEDA handled TCK, Perl and Python in roughly the same way.