This is a very simple Python 3.7 module that uses BeautifulSoup4 and Requests to pull the HTML from a Steam app's store page and parse tags from the HTML. I made this because (to my knowledge) there is no way to pull Steam app tag data from any of the official Steam APIs.
I highly recommend installing this as a module in a local virtual environment. However, the contents of steamapptaggetter.py should work as long as you have BeautifulSoup4 and Requests (and their respective dependencies) installed in your Python environment.
from steamapppgetter import get_steam_app_tags
app_tags = get_steam_app_tags(730)