如何在python中获取HTTPS链接以及如何将epub转换为txt？

import urllib.request

url = "https://example.com"

response = urllib.request.urlopen(url)
data = response.read().decode('utf-8')
print(data)

import requests

url = "https://example.com"

response = requests.get(url)
data = response.text
print(data)

import ebooklib
from ebooklib import epub

def epub_to_txt(epub_file, txt_file):
    book = epub.read_epub(epub_file)
    
    txt_content = ""
    for item in book.get_items():
        if item.get_type() == ebooklib.ITEM_DOCUMENT:
            txt_content += item.get_content().decode('utf-8')
    
    with open(txt_file, 'w', encoding='utf-8') as f:
        f.write(txt_content)

epub_file = "example.epub"
txt_file = "example.txt"

epub_to_txt(epub_file, txt_file)