About /usr/local/ directory - Python related package installation issues

Hello. I'm asking for your help because it was blocked from the first installation stage during the assignment.

This is the installation address of the Python robot-related package that I have to install. https://www.cs.swarthmore.edu/~meeden/cs81/s12/pyrobot.php

If you look here, it says to download the file, put it in /usr/local/pyrobot and run it as $ pyrobot.

I don't know where /usr/local/ is, so I've been searching on Google for 2 hours, and there are many articles using that directory, and there are no articles telling me where that directory is...

I tried to guess that it was installed right under drive C, but it didn't work

And I don't know how to run $pyrobot. $ is in front of me, so I wonder if I should use a bash, but I can't check it because I couldn't install the data I mentioned earlier.

For your information, the OS you are using is Windows 7 64bit.