Парсер словаря Ожегова с удалением оглавления

import requests
from bs4 import BeautifulSoup

file_name = 'dicts/all.txt'
file = open(file_name, 'w+')
def get_new_words(url, file_name):
    response = requests.get(url)
    soup = BeautifulSoup(response.content.decode('windows-1251'), features="lxml")
    quotes = soup.find_all('li')
    for quote in quotes:
        file.write(str(quote.text) + '\n')

for i in range(1,30):
    url = 'https://onlinedic.net/ozhegov/letter' + str(i) + '.php'
    get_new_words(url, file_name)

with open('dicts/all.txt') as source, open('dicts/all_changed.txt', 'w') as destination:
    for line in source:
        if len(line) > 2:
            if '...' not in line:
                destination.write(line)