Python crawl csnd article and convert to PDF file

import requests # Data requests Send requests Third-party modules pip install requests
import parsel # data parsing module third party module pip install parsel
import os # File manipulation module
import re # Regular expression module
import pdfkit # pip install pdfkit

filename = 'pdf\\' # File name
filename_1 = 'html\\'
if not (filename): #If there's no such folder
    (filename) # Automatically create this folder

if not (filename_1): #If there's no such folder
    (filename_1) # Create this folder automatically.

for page in range(1, 11):
    print(f'=================It's crawling.{page}Page Data Content=================')
    url = f'/qdPython/article/list/{page}'

    # python code for the server to send a request >>> after the server receives it (if not disguised) is recognized, it is a crawler, >>> will not give you back the data
    # The client (browser) sends a request to the server >>> the server receives the request >>> the browser returns a response to the request.
    # headers Request headers are just python code that masquerades as a browser to make a request.
    # headers parameter field is queried in the developer tools Copy
    # Not all of the parameter fields are required
    # user-agent: basic information about the browser (equivalent to a wolf in sheep's clothing, so that it can blend in with the sheep)
    # cookie: user info detects if account is logged in (some sites require login to see data, some data content on B-site)
    # referer: anti-theft link request where your url was redirected from (B.com video content / girl picture download / Vipshop product data)
    # Depending on the content of the site, it's a case-by-case analysis.
    headers = {
        'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36'
    }
    # Request method: get request post request You can see what the url request method looks like through the developer tools.
    # Search / Login / Query This is a post request
    response = (url=url, headers=headers)

# Need to convert the fetched html string data into a selector parser object
selector = ()
# getall returns a list
href = ('.article-list a::attr(href)').getall()

for index in href:
    # Send request Send a request for the url of the article details page
    response_1 = (url=index, headers=headers)
    selector_1 = (response_1.text)
    title = selector_1.css('#articleContentId::text').get()
    new_title = change_title(title)
    content_views = selector_1.css('#content_views').get()
    html_content = html_str.format(article=content_views)
    html_path = filename_1 + new_title + '.html'
    pdf_path = filename + new_title + '.pdf'
    with open(html_path, mode='w', encoding='utf-8') as f:
        (html_content)
        print('Saving:', title)

def change_title(name):
    mode = (r'[\\\/\:\*\?\"\<\>\|]')
    new_name = (mode, '_', name)
    return new_name

config = (wkhtmltopdf=r'C:\Program Files\wkhtmltopdf\bin\')
pdfkit.from_file(html_path, pdf_path, configuration=config)