Problem running "triangular patchy particles with fix rigid command"

Dear users,

I am new to LAMMPS. I am trying to run “triangular patchy particles with fix rigid command” in User-contributed LAMMPS input scripts and howto explanations section, but I am not able to run the script. When I run in.tri, it gives no file ‘tri.restart.equil’, how do I load or generate tri.restart.equil file. Is there some particular way to run in.tri file? Also, I am not able to run the python script tri.py. I have installed python wrapper and all the python tools, but when I run the script using ‘python tri.py’ it gives ‘name ‘patch’ is not defined’ error. I would be really grateful if someone could help me run the these tutorial files.

Thank You,
Dushyant Sahoo