The first thing you'll want to do is make sure you're running python3, and you have the ability to pip install the packages we need. In this case:
pip3 install requests
pip3 install beautifulsoup4
Depending on how your system is setup, you may need to use pip and python instead of pip3 and python3
Each step builds on the next. You can run each one by running python3 scrape_N.py where N is the each numbered step. The final scraper, scrape_9.py, is fully commented and the final product.