To get Python, go to python.org.
To install BeautifulSoup, the module we use for scraping, try these instructions. (You might need a special program to deal with compressed files which end in .tar.gz.)
There’s a mistake on p 22, you need to type in “import re” before doing any regular expressions.
If you want to find out the div and span tags that mark out distinctive portions of your page, try Hackasaurus goggles.