Sure. You installed Python 3 from
https://www.python.org/downloads/ presumably. When you did that, in addition to the Python interpreter it also installed a program called IDLE or IDLE3. Search for that with your computer's search facility if you don't see it.
Download the two files we provide - crack2.py and passwords.txt. Put them in a folder somewhere on your computer.
In IDLE's menu, go to File/Open, navigate over to the folder with the two files and open 'crack2.py'. That loads the code into the editor where you'll make your changes. To run it, select Run/Run Module from the menu. It will offer to save your changes if you made any.
There are 7 passwords it' knows about. Password 0 is one that you just set in quotes. Search for it in the code - it starts out as "314". The program asks which of the 6 you want it to guess. Select a number from 0 to 6 and it will apply the methods described. You know what password 0 is - you'll use that to fine tune your new methods. You don't know what passwords 1 through 6 are though. Those are encrypted so you'll have to get your program to figure those out. As supplied it will figure out passwords 1 through 5. To get password 6 you'll have to write up a new method.
So put your own hard to guess passwords in as password 0 and then see how well the program can figure them out. Make the program better and smarter and then try harder passwords.
Does that help? Write back if you have other questions.
Howard