A way to get all used HTML elements in naucse.python.cz courses

get_used_elements.py

from pathlib import Path
from bs4 import BeautifulSoup

used_elements = set()

def process(fl):                             
    soup = BeautifulSoup(fl.read_text(), "html5lib")
    container = soup.select("body > .page > .container")
    container = container[0]
    for child in container.findChildren():
        used_elements.add(child.name)

def walk(path=Path("naucse/_build/lessons")):
    for i in path.iterdir():
        if i.is_dir():   
            walk(i)
        elif i.name.endswith(".html"):
            process(i)

def search():
    global used_elements
    used_elements = set()
    walk()
    
if __name__ == "__main__":
    search()