Can't get the extractor to work

I've been using Python 2.7 to attempt to extract the jukebox file. I've tried to follow the instructions as much as I could, however no matter what I do, I always get this error.
>>> python ./test.py --extract --output "c:\temp" "JUKEBOX.SI".
File "", line 1
python ./test.py --extract --output "c:\temp" "JUKEBOX.SI".
^
SyntaxError: invalid syntax

I've attempted to link the extract and output to the directory with both the test.py and jukebox.si files. Didn't work. Placed both files in the Python 2.7 folder. Still doesn't work. I've tried messing about but no matter what, it's always that same problem I get.

Apologies if I'm sounding like an idiot, I only have basic knowledge with Python, and apologies for being like 3 years late, but in case the dev's still around, I've been trying to figure this out for a couple of days now with no success. Am I doing something wrong? Do I need to type the input command into a software other than Python 2.7?

Thank you so much.