Port this to python3

[NetworkJack2]

I hate to be that guy, but python2 EOL'd back in april.

That was after it originally EOL'd in January.

That was after it was originally planned to EOL in 2015.

That was after python3 was released in 2006.

This was a very very very long time coming and there was numerous warnings.

I just saw this mentioned in a talk in August 2020 in the blackhat briefings.

Using an unsupported interpreter is a massive security issue and the irony is dully noted.

[madmat27]

Well, better late than ever, I ported part of the program to Python3 in a fork. While there might still be some issues, the program starts and executes smoothly. Feel free to have a look.